Every Free API in the World. One Universal Playground.
Discover, live-test in browser, and generate typed client SDKs for verified free, public, and open APIs. No paywalls, zero friction.
Explore & Test Free Public APIs
Click any API card to load it directly into the interactive workbench, inspect response payloads, and copy code.
Real-Time Uptime & Latency Pulse
Our automated monitoring fleet pings every indexed API every 60 seconds across 4 global edge nodes to guarantee working endpoints.
| EDGE NODE | LOCATION | AVG LATENCY | HEALTH INDEX |
|---|---|---|---|
iad1-edge |
US East (N. Virginia) | 12ms | |
fra1-edge |
EU Central (Frankfurt) | 19ms | |
sin1-edge |
Asia Pacific (Singapore) | 26ms | |
syd1-edge |
Oceania (Sydney) | 34ms |
Zero Paywall Guarantee
Every listed API must provide a genuine free tier with no credit card required to make initial requests.
Automated OpenAPI / Swagger Extraction
We generate machine-readable OpenAPI 3.1 schemas for unstandardized APIs so you can import them into Postman, Insomnia, or code generators.
One-Click Client SDK Generation
Export ready-to-run integration snippets in TypeScript, Python, Go, Rust, cURL, and Swift directly from the workbench.
Directory Standards & Curation Criteria
We maintain strict quality, security, and uptime benchmarks before an open API is published to the FreeAPI index.
| CRITERION | REQUIREMENT | VERIFICATION METHOD |
|---|---|---|
| Accessibility Tier | 100% Free / Public tier accessible with No Key, Free Key, or Open OAuth | Automated request verification with blank credentials |
| Uptime Benchmark | Minimum 99.0% availability over a rolling 30-day monitoring window | Continuous 60-second health check pulse across edge nodes |
| CORS Support | Browser-friendly CORS headers (Access-Control-Allow-Origin: *) or proxy compatibility |
OPTIONS preflight inspection |
| Documentation Quality | Structured schemas with typed parameters and response field definitions | OpenAPI 3.1 automated schema generator |
| Community Neutrality | Zero sponsored ranking bias; ordered by uptime, developer popularity, and latency | Deterministic open-source indexing algorithm |
Submit a Free API or Partner With Us
Are you the maintainer of a free public API or building open developer tooling? We'd love to list your service and collaborate.