API Playground
Test verified public APIs in your browser via a security-hardened proxy — only 2,601 allowlisted APIs can be reached. Built for single-endpoint APIs and large surfaces like Plaid or Slack.
Endpoints
13
Diary
Request
proxy validates path
live-api.letmc.com· SSRF-safe proxyApplied to this request only — never stored, never sent anywhere but the API you're calling.
query · required — The date to search from
query · required — The unique appointment type identifier
query — Sales or Lettings property?
query — The unique property identifier (Sales or Lettings) determines branch and property type
query — Branch ID to check appointments (required if no property submitted)
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 agentOS API V3, Diary Call Group to start.