API Playground
Test verified public APIs in your browser via a security-hardened proxy — only 2,602 allowlisted APIs can be reached. Built for single-endpoint APIs and large surfaces like Plaid or Slack.
Endpoints
4
Qr_transparent.{format}
Qr_transparent_{size}.{format}
Qr.{format}
Qr_{size}.{format}
Request
proxy validates path
www.qrtag.net· SSRF-safe proxyquery — Custom URL that the QR code should link to.
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 QR code to start.