Publishing API: post or schedule to 10 social networks with one HTTPS call, or from an AI agent over MCP. Free forever: 15 posts/month, 3 connected accounts, all networks except X.

Free web search and fetch API with rate limits. ⬆️ Back to Top

Webhook gateway hosted in Germany. Signature verification, retries, dead letter queue and replay. Free plan: 10,000 events per month.

Semantic image search API across 9 free photo sources (Unsplash, Pexels, Pixabay, Kaboompics & more), 9M+ photos under one JSON schema instead of one integration per source. Plain-language queries, reverse image search, filters on color, orientation and license. CORS is open on read endpoints, so it

Built-in knowledge-based algorithms in the cloud.

Offers free plan of weather API. Provides accurate and up-to-date weather forecasting with global coverage, historical data and weather monitoring solutions.

IP Geolocation API with 1000 free requests / day. Provides information about the location of an IP address, including country, city, region, and more.

PDF generation API with a visual template editor, dynamic data merging, and SDKs for 7 languages. Free plan includes 60 PDFs/month and 3 templates.

SmartParse is a data migration and CSV to API platform that offers time- and cost-saving developer tools. The Free tier includes 300 Processing Units per month, Browser uploads, Data quarantining, Circuit breakers, and Job Alerts.

IP API that detects residential proxies and VPNs. ProxySentry.io offers a free tier with 10k requests per month on rapidapi.com.

Fraud and trust scoring for an IP, email, phone, domain or device in one call, plus authorization and Web Bot Auth verification for AI agents. 1,000 lookups/month free, no card required.

Zebra ZPL label rendering and validation API and browser viewer. Free tier includes an anonymous rendering quota and barcode generation with no watermark, no card required.

Free Zip Code API, access to Worldwide Postal Code Data. 5,000 free requests/month.

Web scraping API with headless browsers, residentials IPs, and straightforward pricing. One thousand free API calls/month and extra credits for students and non-profits.

Turn any website into a parameterized API. 30k API calls per month.

X/Twitter read REST API (profiles, search, timelines) plus account monitors. Free tier: 1,000 API calls/month, 1 monitor, instant API key. HTTP webhooks on paid plans from $19/mo.

AI-powered code review assistant. The free plan has a limit of 25,000 monthly tokens (10 PRs).

A free service to check your public IPv4 and IPv6 address and related request data through an API with different output formats for automation, scripts, and network troubleshooting.

The developer-first MLOps platform. Build better models faster with experiment tracking, dataset versioning, and model management. Free tier for personal projects only, with 100 GB of storage included.

Simple Web Scraping API with built-in parsing, Chrome rendering, and proxies. Two thousand free API calls per month.

Global weather data including current conditions, hourly and daily forecasts, and weather alerts via our API. Integrating AI models and ML systems to analyze and combine multiple weather models to deliver improved forecast accuracy. Free tier includes 10,000 API calls/month.

EU VAT number validation REST API with VIES and national tax-registry fallback, returning the official VIES consultation number for audit records. Free tier of 100 validations/month, no credit card.

Simple and free VAT number validation API. 150 free validations per month.

Real-time exchange rates for 590+ currencies and crypto. Unlimited API calls on the free plan, perfect for developers and finance apps.

Trophy is the gamification layer for consumer apps. Use pre-built APIs and open-source UI components to ship achievements, streaks, points, leaderboards and more. Free for up to 1,000 monthly active users.

Treblle helps teams build, ship, and govern APIs. With advanced API log aggregation, observability, docs, and debugging. You get all features for free, but there is a limit of up to 250k requests per month on the free tier.

rich text editing API. Core features are free for unlimited usage.

API for online search and rapid insights and comprehensive research, with the capability of organization of research results. 1000 request/month for the Free tier with No credit card required.

Webhooks as a Service. Send up to 50,000 messages/month for free.

A collection of free online SQL tools, including an SQL formatter and validator, SQL regex tester, fake data generator, and interactive database playgrounds.

Create secure RESTful APIs from CSV files. Upload a CSV file and instantly access the data via its API allowing faster application development. The free plan includes 2 APIs and 2,500 API calls per month. You don't need a credit card.

Geekflare API lets you scrape websites into Markdown, take screenshots, perform TLS scans and DNS lookups, test load times, and more. The free plan offers 500 API credits per month (e.g., 500 DNS lookups, 250 web scrapes, or 100 screenshots). See credit mapping.

Trigger your webhook after each operation. The free plan includes 100 cloud scrape credits.

Real-time search engine scraping API. Returns structured JSON results for Google, YouTube, Bing, Baidu, Walmart, and many other machines. The free plan includes 100 successful API calls per month.

Headless Chrome scraping API and free checked proxies service. Javascript rendering, premium rotating proxies, CAPTCHAs avoiding. Free 10,000 API credits.

Simple HTTP proxy API for scraping. Scrape anonymously without having to worry about restrictions, blocks, or captchas. First 100 successful scrapes per month free including javascript rendering (more available if you contact support).

Web service to generate unique and cool images from any text.

Create a free endpoint to which you can send HTTP requests. Any HTTP requests sent to that endpoint will be recorded with the associated payload and headers so you can observe recommendations from webhooks and other services.

FFmpeg API - A REST API for FFmpeg, run FFmpeg online without handling the infrastructure. Free tier with monthly processing quota and 4 vCPUs available.

Turn any unstructured documents (PDF, XLSX, JPG, PPTX, etc.) into structured JSON data. Parse, extract data, and edit PDF forms. Free tier with 15k free credits and pay-as-you-go.

A hosted Apache Superset service. Forever free for teams of up to 5 users, featuring unlimited dashboards and charts, a no-code chart builder, and a collaborative SQL editor.

A complete platform for dataflow automation. Free plan includes 5 deployed workflows and 500 minutes of serverless compute credits per month.

Simplify workflows and create better APIs - faster - with Postman, a collaboration platform for API development. Use the Postman App for free forever. Postman cloud features are also free forever with certain limits.

Schedule webhooks to fire at a future time with automatic retries, delivery tracking, and failure alerting. Free plan includes 1,000 webhooks per month.

— Open Graph (OG) social preview image generation API. Generate dynamic 1200×630 images for Twitter, LinkedIn and Facebook via URL params, edge-cached on Cloudflare Workers. Free tier: 1,000 renders/month. Paid plans from $12/month. ⬆️ Back to Top

Free API Management platform to design, build, and deploy APIs to the Edge. Add API Key authentication, rate limiting, developer documentation and Monetization to any API in minutes. OpenAPI-native and fully-programmable with web standard apis & Typescript. The free plan offers up to 10 projects, un

REST API for US and Canadian postal codes with address validation, radius search, and Census demographics. 2,500 free requests/day.

Developer-focused PDF generation API designed with privacy in mind. It offers Stripe-inspired documentation and includes 500 free PDF conversions per month.