API Playground
Test verified public APIs in your browser via a security-hardened proxy — only 2,603 allowlisted APIs can be reached. Built for single-endpoint APIs and large surfaces like Plaid or Slack.
Social · OpenAPI imported · 127 endpoints
Endpoints
127
Api
Oauth
Request
proxy validates path
mastodon.local· SSRF-safe proxyApplied to this request only — never stored, never sent anywhere but the API you're calling.
Response
Send a request to see the real response here — status, timing, and body.
The playground routes through a security-hardened proxy. Only allowlisted hosts are reachable. Try Mastodon API Specification (https://github.com/mastodon/mastodon) to start.