Free APIs with CORS Enabled
Public developer APIs that support cross-origin requests right from client-side React, Vue, Svelte, or vanilla browser applications without server proxies.
Overview & Comparison Matrix
50 Endpoints| API Name | Category | Auth Status | Rate Limit | Action |
|---|---|---|---|---|
| Geekflare API | developer | Free Key | 500 req/month (Free Tier) | View API |
| Trimwise API | ai-llm | No Key | 150 req/min (No Auth) | View API |
| Pixepi API | developer | No Key | 10 req/day (Member) • 3 req/day (Guest) | View API |
| ReadGZH | developer | No Key | 30 credits/day (Registered) • 10 req/day (Guest) | View API |
| SiftingIO | finance | Free Key | 10,000 req/month (Free Tier) | View API |
| 10ML Fragrance Index API | ecommerce | No Key | Unlimited (No-Key & Open CORS) | View API |
| SoldFetch | ecommerce | Free Key | 100 units/month (Free Tier) | View API |
| XCrawl Web Data API | developer | Free Key | 1,000 Free Credits | View API |
| CurlShot | developer | Free Key | 100 screenshots/month (10 req/min) | View API |
| Arcmira: YouTube Transcript Search | video | Free Key | Freemium (Free Plan + Paid Usage) | View API |
All Verified Endpoints(24 / 50)
Geekflare API
All-in-one developer API providing web scraping, full-page screenshots, Google SERP data, and DNS/SSL diagnostics
Trimwise API
Query-aware context and token compression engine for LLMs. Fits long documents into prompt token budgets by extracting relevant excerpts
Pixepi API
Developer platform offering PDF merge, split, compress, and image conversion/resizing tools through a single versioned REST API (v1). Includes free guest and registered member tiers.
ReadGZH
Converts public WeChat articles into clean Markdown for AI assistants, LLM pipelines, and research workflows. Features anonymous zero-card access, daily free credits, and a hosted MCP server.
SiftingIO
Real-time and historical market data for US stocks, forex, crypto and commodities via REST and WebSocket. 25+ years of OHLCV history, watchlists and portfolio analytics.
10ML Fragrance Index API
Public REST JSON and MCP service for 5,400+ perfumes, notes, fragrance pyramids, accords, and seasonal profiles. Zero auth, open CORS, and no signup required.
SoldFetch
Search eBay sold and active listings, browse categories, and retrieve item details through REST or MCP for resale and market research.
XCrawl Web Data API
Web data API for AI builders: scrape, crawl, map domains, and extract clean JSON or Markdown with proxy and headless rendering.
CurlShot
Screenshot API converting URL, HTML, or Markdown into PNG, JPEG, WebP, PDF, or scrolling videos with full page and dark mode support.
Arcmira: YouTube Transcript Search
Search indexed YouTube and podcast transcripts for timestamped quotes, speaker appearances, mentions, and recommendations via REST or MCP.
IPKit
High-speed free IP lookup API returning geolocation, ASN/ISP, and VPN/Proxy/Tor detection signals. HTTPS, zero-auth, and open CORS.
StatOrigin
Open index of industry statistics from primary publishers across 32 industries, linking figures directly to source reports.
CPFHub.io
REST API for Brazilian CPF data verification, name matching, and birth date validation with batch processing and MCP support.
thirds.ai
Create branded PDFs and images from HTML or saved templates via a versioned REST API. Starts free with 50 monthly credits.
Open-Meteo
Zero registration required, 16-day forecasts, free for non-commercial applications
OpenWeatherMap
7-day weather forecast, current conditions, and historical records
WeatherAPI
Comprehensive real-time weather and astronomical datasets
Visual Crossing
50-year historical weather records and global meteorological forecasts
Tomorrow.io
Advanced hyperlocal weather intelligence, wind vectors, and alert feeds
Meteostat
Open meteorological historical weather data archive and climate trends
AccuWeather
Enterprise-grade weather forecasts and high-resolution radar feeds
Weatherbit
High-resolution historical and current weather and solar telemetry
Frequently Asked Questions & Developer Guide
What is CORS and why does it matter for frontend APIs?
Cross-Origin Resource Sharing (CORS) allows web applications in a browser to make XMLHttpRequests / fetch calls to other domains. APIs with CORS enabled do not require a separate backend proxy.
What should I do if an API throws a CORS error?
You can proxy the call through FreeAPI Smart Edge Gateway to automatically receive normalized Access-Control-Allow-Origin headers with high-speed memory caching.