> Calendly developer docs. For page Markdown, append .md to any URL. > Index: https://developer.calendly.com/llms.txt > API catalog: https://developer.calendly.com/.well-known/api-catalog > OpenAPI: https://developer.calendly.com/openapi/calendly-api.yaml > OAuth authorization server: https://calendly.com/.well-known/oauth-authorization-server > MCP protected resource: https://mcp.calendly.com/.well-known/oauth-protected-resource > Scheduling MCP endpoint: https://mcp.calendly.com > Docs search MCP: https://developer.calendly.com/_mcp/server # Webhooks ## Docs - [Webhook Signatures](https://developer.calendly.com/api-docs/overview/webhooks/webhook-signatures.md): Verify the authenticity of webhook events from Calendly - [Webhook Errors](https://developer.calendly.com/api-docs/overview/webhooks/webhook-errors.md): Understanding webhook error handling and retry behavior - [Webhook Timeouts](https://developer.calendly.com/api-docs/overview/webhooks/webhook-timeouts.md): Understanding webhook connection and read timeouts