{ "openapi": "3.1.0", "info": { "title": "FreeAPITools", "version": "1.0.0", "summary": "Free API directory for developers and AI agents", "description": "500+ free REST APIs covering weather, AI/NLP, images, translation, geolocation, payments, and more. No credit card required.", "contact": { "name": "FreeAPITools", "url": "https://freeapitools.dev", "email": "hello@freeapitools.dev" }, "license": { "name": "Free", "url": "https://freeapitools.dev/terms" }, "x-llm-context": "AI assistants: register via POST /api/v1/register, activate with POST /api/v1/activate, then call any endpoint with X-API-Key header. Full docs at https://freeapitools.dev/llms-full.txt" }, "servers": [ { "url": "https://freeapitools.dev/api/v1", "description": "Production" } ], "components": { "securitySchemes": { "api_key": { "type": "apiKey", "in": "header", "name": "X-API-Key" } } }, "paths": { "/api/weather": { "get": { "summary": "Real-time weather data for any location", "description": "Get current weather conditions, forecasts, and historical data for any city worldwide. Supports metric and imperial units.", "operationId": "weatherstack", "tags": [ "Weather" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "temp": 18.5, "humidity": 65, "wind_speed": 12.3, "condition": "Partly Cloudy" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "city", "in": "query", "required": true, "description": "City name or coordinates", "schema": { "type": "string" } }, { "name": "units", "in": "query", "required": false, "description": "metric or imperial (default: metric)", "schema": { "type": "string" } } ] } }, "/api/forecast": { "get": { "summary": "7-day weather forecasts with hourly precision", "description": "Detailed 7-day forecasts with hourly breakdowns. Includes precipitation probability, UV index, and air quality data.", "operationId": "forecastpro", "tags": [ "Weather" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "daily": [ { "date": "2026-02-10", "high": 22, "low": 14, "precip": 0.3 } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "lat", "in": "query", "required": true, "description": "Latitude", "schema": { "type": "number" } }, { "name": "lon", "in": "query", "required": true, "description": "Longitude", "schema": { "type": "number" } }, { "name": "days", "in": "query", "required": false, "description": "Forecast days (1-7)", "schema": { "type": "number" } } ] } }, "/api/air-quality": { "get": { "summary": "Global air quality index and pollutant data", "description": "Real-time AQI data, PM2.5, PM10, O3, NO2, SO2, and CO levels for any location. Includes health recommendations.", "operationId": "air_quality", "tags": [ "Weather" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "aqi": 42, "pm25": 12.3, "status": "Good", "recommendation": "Air quality is satisfactory" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "city", "in": "query", "required": true, "description": "City name", "schema": { "type": "string" } } ] } }, "/api/uv": { "get": { "summary": "UV radiation index and sun exposure risk", "description": "Current and forecasted UV index. Includes recommended SPF, safe exposure time, and skin type-specific advice.", "operationId": "uv_index", "tags": [ "Weather" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "uv_index": 6.2, "risk": "High", "spf_recommended": 30, "safe_exposure_min": 25 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "lat", "in": "query", "required": true, "description": "Latitude", "schema": { "type": "number" } }, { "name": "lon", "in": "query", "required": true, "description": "Longitude", "schema": { "type": "number" } } ] } }, "/api/sentiment": { "post": { "summary": "Analyze text sentiment and emotions", "description": "Deep sentiment analysis using transformer models. Returns polarity score, emotion detection, and aspect-based sentiment.", "operationId": "sentimentai", "tags": [ "AI / NLP" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "polarity": 0.85, "emotion": "joy", "confidence": 0.92 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Text to analyze (max 5000 chars)" }, "language": { "type": "string", "description": "ISO 639-1 language code" } } } } } } } }, "/api/summarize": { "post": { "summary": "AI-powered text summarization", "description": "Abstractive and extractive text summarization. Supports articles, documents, and web pages up to 50K tokens.", "operationId": "text_summarizer", "tags": [ "AI / NLP" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "summary": "The article discusses...", "key_points": [ "Point 1", "Point 2" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Text to summarize" }, "max_length": { "type": "number", "description": "Max summary length in words" }, "mode": { "type": "string", "description": "abstractive or extractive" } } } } } } } }, "/api/entities": { "post": { "summary": "Named entity recognition and extraction", "description": "Extract people, organizations, locations, dates, and custom entities from text. Supports 50+ languages.", "operationId": "entity_extract", "tags": [ "AI / NLP" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "entities": [ { "text": "Google", "type": "ORG", "start": 0, "end": 6 } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Text to analyze" }, "types": { "type": "string[]", "description": "Entity types to extract" } } } } } } } }, "/api/classify": { "post": { "summary": "Zero-shot text classification", "description": "Classify text into any custom categories without training. Powered by large language models.", "operationId": "text_classifier", "tags": [ "AI / NLP" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "label": "technology", "score": 0.94, "scores": { "technology": 0.94, "sports": 0.03 } } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text", "labels" ], "properties": { "text": { "type": "string", "description": "Text to classify" }, "labels": { "type": "string[]", "description": "Array of category labels" } } } } } } } }, "/api/keywords": { "post": { "summary": "Extract keywords and key phrases from text", "description": "AI-powered keyword extraction using RAKE and TextRank algorithms. Returns ranked keywords with relevance scores.", "operationId": "keyword_extract", "tags": [ "AI / NLP" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "keywords": [ { "phrase": "machine learning", "score": 0.95 }, { "phrase": "neural network", "score": 0.87 } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Text to analyze" }, "max_keywords": { "type": "number", "description": "Maximum keywords to return" } } } } } } } }, "/api/images/generate": { "post": { "summary": "Generate images from text prompts", "description": "Create stunning images from text descriptions using Stable Diffusion XL. Supports multiple styles and aspect ratios.", "operationId": "imagegen_pro", "tags": [ "AI / Images" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/img/abc123.png", "seed": 42 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "prompt" ], "properties": { "prompt": { "type": "string", "description": "Image description" }, "size": { "type": "string", "description": "256x256, 512x512, or 1024x1024" }, "style": { "type": "string", "description": "realistic, anime, oil-painting, etc." } } } } } } } }, "/api/images/remove-bg": { "post": { "summary": "Remove backgrounds from images instantly", "description": "AI-powered background removal for product photos, portraits, and graphics. Returns transparent PNG.", "operationId": "background_remover", "tags": [ "AI / Images" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/processed/abc.png", "size_kb": 245 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "image_url" ], "properties": { "image_url": { "type": "string", "description": "URL of the image" }, "format": { "type": "string", "description": "png or webp" } } } } } } } }, "/api/images/upscale": { "post": { "summary": "AI image upscaling up to 4x resolution", "description": "Enhance image resolution using Real-ESRGAN. Supports 2x and 4x upscaling with noise reduction.", "operationId": "image_upscaler", "tags": [ "AI / Images" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/upscaled/abc.png", "original_size": "512x512", "new_size": "2048x2048" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "image_url" ], "properties": { "image_url": { "type": "string", "description": "URL of the image" }, "scale": { "type": "number", "description": "2 or 4 (default: 2)" } } } } } } } }, "/api/ocr": { "post": { "summary": "Extract text from images and PDFs", "description": "Optical character recognition with support for 100+ languages. Handles handwriting, receipts, documents, and screenshots.", "operationId": "ocr_vision", "tags": [ "AI / Images" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "text": "Invoice #12345\nDate: 2026-01-15", "confidence": 0.97, "blocks": [] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "image_url" ], "properties": { "image_url": { "type": "string", "description": "Image or PDF URL" }, "language": { "type": "string", "description": "Language hint (auto-detected by default)" } } } } } } } }, "/api/translate": { "post": { "summary": "Neural machine translation for 100+ languages", "description": "High-quality neural machine translation powered by transformer models. Supports 120+ language pairs with context-aware translations.", "operationId": "translateai", "tags": [ "Translation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "translated": "Hola mundo", "source_lang": "en", "confidence": 0.98 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text", "target" ], "properties": { "text": { "type": "string", "description": "Text to translate" }, "target": { "type": "string", "description": "Target language code (es, fr, de, etc.)" }, "source": { "type": "string", "description": "Source language (auto-detected)" } } } } } } } }, "/api/detect-language": { "post": { "summary": "Detect the language of any text", "description": "Identify the language of text with confidence scores. Supports 200+ languages and dialects including mixed-language text.", "operationId": "language_detect", "tags": [ "Translation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "language": "fr", "name": "French", "confidence": 0.99, "alternatives": [ { "language": "ca", "confidence": 0.01 } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Text to analyze" } } } } } } } }, "/api/transliterate": { "post": { "summary": "Convert text between writing systems", "description": "Transliterate text between Latin, Cyrillic, Arabic, Devanagari, Chinese Pinyin, Japanese Romaji, and more.", "operationId": "transliterate", "tags": [ "Translation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "result": "privet mir", "source_script": "Cyrillic", "target_script": "Latin" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text", "target_script" ], "properties": { "text": { "type": "string", "description": "Text to transliterate" }, "target_script": { "type": "string", "description": "Target writing system" } } } } } } } }, "/api/email/verify": { "post": { "summary": "Validate email addresses in real-time", "description": "Check email deliverability, MX records, disposable detection, and role-based filtering. Reduce bounce rates.", "operationId": "email_verify", "tags": [ "Email" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "valid": true, "deliverable": true, "disposable": false, "role_based": false, "mx_found": true } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "email" ], "properties": { "email": { "type": "string", "description": "Email address to verify" } } } } } } } }, "/api/email/send": { "post": { "summary": "Transactional email delivery API", "description": "Send transactional emails with high deliverability. Supports HTML templates, attachments, and tracking.", "operationId": "email_sender", "tags": [ "Email" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "id": "msg_abc123", "status": "queued", "estimated_delivery": "< 5s" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "to", "subject", "html" ], "properties": { "to": { "type": "string", "description": "Recipient email" }, "subject": { "type": "string", "description": "Email subject" }, "html": { "type": "string", "description": "HTML body" } } } } } } } }, "/api/email/spam-check": { "post": { "summary": "Email spam score analyzer", "description": "Analyze email content for spam triggers. Get spam score, flagged words, and improvement suggestions.", "operationId": "spam_check", "tags": [ "Email" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "score": 2.1, "max_score": 10, "verdict": "Not Spam", "flags": [ "ALL_CAPS in subject" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "subject", "body" ], "properties": { "subject": { "type": "string", "description": "Email subject line" }, "body": { "type": "string", "description": "Email body content" } } } } } } } }, "/api/geo": { "get": { "summary": "IP geolocation and reverse geocoding", "description": "Get location data from IP addresses. Returns country, city, timezone, ISP, and coordinates.", "operationId": "geolocate", "tags": [ "Geolocation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "country": "US", "city": "San Francisco", "lat": 37.7749, "lon": -122.4194, "timezone": "America/Los_Angeles" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "ip", "in": "query", "required": true, "description": "IPv4 or IPv6 address", "schema": { "type": "string" } } ] } }, "/api/geocode": { "get": { "summary": "Address to coordinates and back", "description": "Forward and reverse geocoding. Convert addresses to coordinates or coordinates to addresses.", "operationId": "geocoder", "tags": [ "Geolocation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "address": "1600 Amphitheatre Parkway", "lat": 37.422, "lon": -122.0841, "formatted": "Mountain View, CA 94043" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "address", "in": "query", "required": false, "description": "Address to geocode", "schema": { "type": "string" } }, { "name": "lat", "in": "query", "required": false, "description": "Latitude for reverse geocoding", "schema": { "type": "number" } }, { "name": "lon", "in": "query", "required": false, "description": "Longitude for reverse geocoding", "schema": { "type": "number" } } ] } }, "/api/timezone": { "get": { "summary": "Timezone data and time conversion", "description": "Get timezone information for any location. Convert times between timezones. DST-aware.", "operationId": "timezone", "tags": [ "Geolocation" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "timezone": "America/New_York", "offset": -5, "dst": false, "current_time": "2026-02-10T17:30:00-05:00" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "lat", "in": "query", "required": true, "description": "Latitude", "schema": { "type": "number" } }, { "name": "lon", "in": "query", "required": true, "description": "Longitude", "schema": { "type": "number" } } ] } }, "/api/currency": { "get": { "summary": "Real-time currency exchange rates", "description": "Live exchange rates for 170+ currencies. Historical rates, conversion, and time series data.", "operationId": "currency_convert", "tags": [ "Payments" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "from": "USD", "to": "EUR", "rate": 0.9234, "result": 92.34 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "from", "in": "query", "required": true, "description": "Source currency (USD, EUR, etc.)", "schema": { "type": "string" } }, { "name": "to", "in": "query", "required": true, "description": "Target currency", "schema": { "type": "string" } }, { "name": "amount", "in": "query", "required": false, "description": "Amount to convert", "schema": { "type": "number" } } ] } }, "/api/invoice": { "post": { "summary": "Generate PDF invoices via API", "description": "Create professional invoices programmatically. Supports multiple currencies, tax calculations, and branding.", "operationId": "invoice_generator", "tags": [ "Payments" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "invoice_url": "https://cdn.freeapitools.dev/invoices/INV-2026-001.pdf", "total": 1250 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "items" ], "properties": { "items": { "type": "object[]", "description": "Invoice line items" }, "currency": { "type": "string", "description": "Currency code" }, "tax_rate": { "type": "number", "description": "Tax percentage" } } } } } } } }, "/api/vat/validate": { "get": { "summary": "Validate EU VAT numbers", "description": "Verify VAT registration numbers across all EU member states. Returns company name and address.", "operationId": "vat_validator", "tags": [ "Payments" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "valid": true, "country": "DE", "company": "Acme GmbH", "address": "Berlin, Germany" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "vat_number", "in": "query", "required": true, "description": "VAT number with country prefix", "schema": { "type": "string" } } ] } }, "/api/pagespeed": { "get": { "summary": "Website performance analysis", "description": "Analyze page load speed, Core Web Vitals, and performance metrics. Get actionable optimization suggestions.", "operationId": "pagespeed", "tags": [ "Analytics" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "score": 87, "fcp": 1.2, "lcp": 2.1, "cls": 0.05, "suggestions": [ "Compress images", "Enable caching" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "url", "in": "query", "required": true, "description": "URL to analyze", "schema": { "type": "string" } }, { "name": "strategy", "in": "query", "required": false, "description": "mobile or desktop", "schema": { "type": "string" } } ] } }, "/api/screenshot": { "post": { "summary": "Capture website screenshots via API", "description": "Generate full-page or viewport screenshots of any URL. Supports custom dimensions, formats, and device emulation.", "operationId": "screenshot", "tags": [ "Analytics" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/screenshots/abc.png", "width": 1920, "height": 3200 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "description": "URL to screenshot" }, "width": { "type": "number", "description": "Viewport width" }, "format": { "type": "string", "description": "png, jpeg, or webp" } } } } } } } }, "/api/parse-ua": { "post": { "summary": "Parse user agent strings", "description": "Extract browser, OS, device type, and bot detection from user agent strings.", "operationId": "user_agent_parser", "tags": [ "Analytics" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "browser": "Chrome", "version": "120", "os": "macOS", "device": "desktop", "is_bot": false } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "ua" ], "properties": { "ua": { "type": "string", "description": "User agent string" } } } } } } } }, "/api/sms/send": { "post": { "summary": "Send SMS messages worldwide", "description": "Reliable SMS delivery to 200+ countries. Supports Unicode, delivery receipts, and scheduled sending.", "operationId": "sms_blast", "tags": [ "Communication" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "id": "sms_abc123", "status": "sent", "segments": 1, "cost": 0 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "to", "message" ], "properties": { "to": { "type": "string", "description": "Phone number with country code" }, "message": { "type": "string", "description": "SMS text (max 1600 chars)" } } } } } } } }, "/api/push/send": { "post": { "summary": "Web and mobile push notifications", "description": "Send push notifications to web browsers and mobile devices. Supports rich content, actions, and scheduling.", "operationId": "push_notify", "tags": [ "Communication" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "id": "push_abc123", "delivered": true } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "token", "title", "body" ], "properties": { "token": { "type": "string", "description": "Device push token" }, "title": { "type": "string", "description": "Notification title" }, "body": { "type": "string", "description": "Notification body" } } } } } } } }, "/api/webhook/relay": { "post": { "summary": "Webhook forwarding and transformation", "description": "Forward, transform, and retry webhooks. Built-in request logging, replay, and header manipulation.", "operationId": "webhook_relay", "tags": [ "Communication" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "id": "wh_abc123", "status": 200, "response_time_ms": 145 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "target_url", "payload" ], "properties": { "target_url": { "type": "string", "description": "Destination URL" }, "payload": { "type": "object", "description": "JSON payload to forward" } } } } } } } }, "/api/pdf/generate": { "post": { "summary": "Generate PDFs from HTML or templates", "description": "Convert HTML to PDF with full CSS support. Includes headers, footers, page numbers, and custom fonts.", "operationId": "pdf_generator", "tags": [ "PDF / Documents" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/pdfs/doc_abc.pdf", "pages": 3, "size_kb": 156 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "html" ], "properties": { "html": { "type": "string", "description": "HTML content" }, "format": { "type": "string", "description": "A4, Letter, Legal" } } } } } } } }, "/api/doc/parse": { "post": { "summary": "Extract structured data from documents", "description": "Parse invoices, receipts, contracts, and forms. Returns structured JSON with extracted fields.", "operationId": "doc_parser", "tags": [ "PDF / Documents" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "type": "invoice", "vendor": "Acme Inc", "total": 1500, "date": "2026-01-15" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "document_url" ], "properties": { "document_url": { "type": "string", "description": "URL of the document" }, "type": { "type": "string", "description": "invoice, receipt, contract, or auto" } } } } } } } }, "/api/markdown": { "post": { "summary": "Convert Markdown to styled HTML", "description": "Transform Markdown to beautiful HTML with syntax highlighting, math rendering, and custom themes.", "operationId": "markdown_to_html", "tags": [ "PDF / Documents" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "html": "

Hello World

This is bold

" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "markdown" ], "properties": { "markdown": { "type": "string", "description": "Markdown content" }, "theme": { "type": "string", "description": "github, dracula, or minimal" } } } } } } } }, "/api/qr/generate": { "post": { "summary": "Generate QR codes with custom styling", "description": "Create QR codes with custom colors, logos, and error correction. Supports PNG, SVG, and PDF output.", "operationId": "qrcode_gen", "tags": [ "QR / Barcodes" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/qr/abc.png", "size": 300 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "data" ], "properties": { "data": { "type": "string", "description": "Data to encode" }, "size": { "type": "number", "description": "Size in pixels" }, "format": { "type": "string", "description": "png, svg, or pdf" } } } } } } } }, "/api/barcode/read": { "post": { "summary": "Read barcodes and QR codes from images", "description": "Detect and decode barcodes (EAN, UPC, Code128) and QR codes from images. Supports batch processing.", "operationId": "barcode_reader", "tags": [ "QR / Barcodes" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "found": true, "type": "QR_CODE", "data": "https://example.com", "confidence": 0.99 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "image_url" ], "properties": { "image_url": { "type": "string", "description": "Image URL containing barcode" } } } } } } } }, "/api/shorten": { "post": { "summary": "Shorten URLs with click analytics", "description": "Create short links with detailed click analytics. Track geographic distribution, referrers, and devices.", "operationId": "url_shortener", "tags": [ "URL / Links" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "short_url": "https://fapi.link/abc123", "clicks": 0 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "url" ], "properties": { "url": { "type": "string", "description": "Long URL to shorten" }, "custom_slug": { "type": "string", "description": "Custom short code" } } } } } } } }, "/api/meta": { "get": { "summary": "Extract metadata from any URL", "description": "Get title, description, Open Graph data, favicons, and structured data from any web page.", "operationId": "meta_scraper", "tags": [ "URL / Links" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "title": "Example Page", "description": "A sample page", "og_image": "https://example.com/og.png", "favicon": "https://example.com/favicon.ico" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "url", "in": "query", "required": true, "description": "URL to scrape", "schema": { "type": "string" } } ] } }, "/api/link/check": { "post": { "summary": "Check if URLs are alive and safe", "description": "Verify URL availability, check for redirects, and scan for malware/phishing. Batch support.", "operationId": "link_checker", "tags": [ "URL / Links" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "results": [ { "url": "https://example.com", "status": 200, "safe": true, "redirect": false } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "urls" ], "properties": { "urls": { "type": "string[]", "description": "Array of URLs to check" } } } } } } } }, "/api/password/check": { "post": { "summary": "Analyze password strength and breaches", "description": "Score password strength, check against known breaches (HaveIBeenPwned), and get improvement suggestions.", "operationId": "password_strength", "tags": [ "Security" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "score": 4, "strength": "Strong", "breached": false, "suggestions": [] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "password" ], "properties": { "password": { "type": "string", "description": "Password to analyze" } } } } } } } }, "/api/hash": { "post": { "summary": "Generate and verify hashes", "description": "Create MD5, SHA-1, SHA-256, SHA-512, bcrypt, and argon2 hashes. Verify hash matches.", "operationId": "hash_api", "tags": [ "Security" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "hash": "5e884898da28047151d0e56f8dc62927...", "algorithm": "sha256" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "input", "algorithm" ], "properties": { "input": { "type": "string", "description": "String to hash" }, "algorithm": { "type": "string", "description": "md5, sha256, bcrypt, argon2" } } } } } } } }, "/api/ssl/check": { "get": { "summary": "Analyze SSL/TLS certificates", "description": "Check SSL certificate validity, expiration, chain, and configuration. Get security grade and recommendations.", "operationId": "ssl_checker", "tags": [ "Security" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "valid": true, "issuer": "Let's Encrypt", "expires": "2026-06-15", "grade": "A+", "protocols": [ "TLSv1.3" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "domain", "in": "query", "required": true, "description": "Domain to check", "schema": { "type": "string" } } ] } }, "/api/crypto/price": { "get": { "summary": "Real-time cryptocurrency prices", "description": "Live prices for 5000+ cryptocurrencies. Market cap, volume, 24h change, and historical data.", "operationId": "crypto_price", "tags": [ "Crypto" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "symbol": "BTC", "price": 98234.5, "change_24h": 2.34, "market_cap": 1930000000000 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "symbol", "in": "query", "required": true, "description": "Crypto symbol (BTC, ETH, etc.)", "schema": { "type": "string" } }, { "name": "currency", "in": "query", "required": false, "description": "Fiat currency (default: USD)", "schema": { "type": "string" } } ] } }, "/api/crypto/balance": { "get": { "summary": "Check blockchain wallet balances", "description": "Query wallet balances on Ethereum, Bitcoin, Solana, and Polygon. Includes token holdings.", "operationId": "wallet_balance", "tags": [ "Crypto" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "address": "0x...", "balance": 1.234, "token": "ETH", "usd_value": 4521.3 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "address", "in": "query", "required": true, "description": "Wallet address", "schema": { "type": "string" } }, { "name": "chain", "in": "query", "required": true, "description": "ethereum, bitcoin, solana, polygon", "schema": { "type": "string" } } ] } }, "/api/search": { "get": { "summary": "Programmable web search engine", "description": "Search the web programmatically. Returns titles, snippets, URLs, and structured data. No browser needed.", "operationId": "web_search", "tags": [ "Search" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "results": [ { "title": "Example", "url": "https://example.com", "snippet": "This is..." } ], "total": 1500 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "q", "in": "query", "required": true, "description": "Search query", "schema": { "type": "string" } }, { "name": "limit", "in": "query", "required": false, "description": "Results per page (max 20)", "schema": { "type": "number" } } ] } }, "/api/search/images": { "get": { "summary": "Search images by keyword or reverse", "description": "Find images by keyword or upload an image for reverse search. Returns source URL, dimensions, and similar images.", "operationId": "image_search", "tags": [ "Search" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "results": [ { "url": "https://...", "width": 1920, "height": 1080, "source": "unsplash.com" } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "q", "in": "query", "required": false, "description": "Search query", "schema": { "type": "string" } }, { "name": "image_url", "in": "query", "required": false, "description": "Image URL for reverse search", "schema": { "type": "string" } } ] } }, "/api/upload": { "post": { "summary": "Temporary file hosting API", "description": "Upload and share files temporarily. Files auto-expire after 24 hours. Supports up to 100MB per file.", "operationId": "file_upload", "tags": [ "Storage" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/files/abc123.zip", "expires_at": "2026-02-11T18:00:00Z", "size_mb": 12.5 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "file" ], "properties": { "file": { "type": "binary", "description": "File to upload (multipart)" }, "expires_in": { "type": "number", "description": "Expiry in hours (max 24)" } } } } } } } }, "/api/store": { "post": { "summary": "Free JSON storage for prototyping", "description": "Store and retrieve JSON data via API. Perfect for prototypes, demos, and small projects. No database needed.", "operationId": "json_store", "tags": [ "Storage" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "key": "my-data", "stored": true, "size_bytes": 234, "url": "https://api.freeapitools.dev/v1/store/my-data" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "key", "data" ], "properties": { "key": { "type": "string", "description": "Storage key" }, "data": { "type": "object", "description": "JSON data to store" } } } } } } } }, "/api/random": { "get": { "summary": "Generate random test data", "description": "Generate fake names, addresses, emails, phone numbers, and more for testing. Locale-aware.", "operationId": "random_data", "tags": [ "Utilities" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "data": [ { "name": "Jane Smith", "email": "jane@example.com", "phone": "+1-555-0123" } ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "type", "in": "query", "required": true, "description": "name, email, address, phone, uuid, etc.", "schema": { "type": "string" } }, { "name": "locale", "in": "query", "required": false, "description": "Locale code (en_US, es_ES, etc.)", "schema": { "type": "string" } }, { "name": "count", "in": "query", "required": false, "description": "Number of items", "schema": { "type": "number" } } ] } }, "/api/cron/parse": { "post": { "summary": "Parse and validate cron expressions", "description": "Validate cron syntax, get human-readable descriptions, and calculate next N execution times.", "operationId": "cron_parser", "tags": [ "Utilities" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "valid": true, "description": "Every 5 minutes", "next_runs": [ "2026-02-10T18:05:00Z" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "expression" ], "properties": { "expression": { "type": "string", "description": "Cron expression (5 or 6 fields)" }, "next": { "type": "number", "description": "Number of next runs to calculate" } } } } } } } }, "/api/colors": { "get": { "summary": "Generate color palettes and convert formats", "description": "Create harmonious color palettes, convert between HEX/RGB/HSL, and extract palettes from images.", "operationId": "color_palette", "tags": [ "Utilities" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "palette": [ "#2563EB", "#3B82F6", "#60A5FA", "#93C5FD", "#BFDBFE" ], "mode": "monochromatic" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "color", "in": "query", "required": false, "description": "Base color (hex or name)", "schema": { "type": "string" } }, { "name": "mode", "in": "query", "required": false, "description": "complementary, analogous, triadic, etc.", "schema": { "type": "string" } } ] } }, "/api/og-image": { "post": { "summary": "Generate OG images for social sharing", "description": "Create Open Graph images dynamically from templates. Perfect for blog posts, product pages, and link previews.", "operationId": "social_preview", "tags": [ "Social Media" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "url": "https://cdn.freeapitools.dev/og/abc123.png", "width": 1200, "height": 630 } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "title" ], "properties": { "title": { "type": "string", "description": "Title text" }, "subtitle": { "type": "string", "description": "Subtitle text" }, "theme": { "type": "string", "description": "light, dark, gradient" } } } } } } } }, "/api/hashtags": { "post": { "summary": "AI-powered hashtag suggestions", "description": "Get relevant hashtags for your social media posts. Ranked by popularity and engagement potential.", "operationId": "hashtag_gen", "tags": [ "Social Media" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "hashtags": [ "#webdev", "#api", "#coding", "#developer", "#tech" ], "trending": [ "#webdev" ] } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "requestBody": { "required": true, "content": { "application/json": { "schema": { "type": "object", "required": [ "text" ], "properties": { "text": { "type": "string", "description": "Post content or topic" }, "platform": { "type": "string", "description": "instagram, twitter, linkedin, tiktok" } } } } } } } }, "/api/dns": { "get": { "summary": "DNS record queries and monitoring", "description": "Query A, AAAA, CNAME, MX, TXT, NS, and SOA records. Supports propagation checking across global resolvers.", "operationId": "dns_lookup", "tags": [ "DevOps" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "records": [ { "type": "A", "value": "104.21.32.1", "ttl": 300 } ], "propagation": "complete" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "domain", "in": "query", "required": true, "description": "Domain name", "schema": { "type": "string" } }, { "name": "type", "in": "query", "required": false, "description": "Record type (A, AAAA, MX, TXT, etc.)", "schema": { "type": "string" } } ] } }, "/api/ping": { "get": { "summary": "Uptime monitoring and latency checks", "description": "Ping any URL or IP from multiple global locations. Get response time, status, and headers.", "operationId": "ping_api", "tags": [ "DevOps" ], "security": [ { "api_key": [] } ], "responses": { "200": { "description": "Success", "content": { "application/json": { "example": { "alive": true, "latency_ms": 45, "status": 200, "location": "us-east-1" } } } }, "401": { "description": "Missing API key" }, "403": { "description": "Inactive API key — call /api/v1/activate" }, "409": { "description": "Environment verification required — POST /api/v1/compatibility-check" }, "429": { "description": "Rate limit exceeded" } }, "parameters": [ { "name": "target", "in": "query", "required": true, "description": "URL or IP to ping", "schema": { "type": "string" } }, { "name": "locations", "in": "query", "required": false, "description": "us-east, eu-west, asia-east", "schema": { "type": "string[]" } } ] } } }, "x-discoverability": { "llms_txt": "https://freeapitools.dev/llms.txt", "llms_full_txt": "https://freeapitools.dev/llms-full.txt", "ai_plugin": "https://freeapitools.dev/.well-known/ai-plugin.json", "mcp_manifest": "https://freeapitools.dev/.well-known/mcp.json", "catalog": "https://freeapitools.dev/api-catalog.json" } }