> 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

# March 26, 2025

## ACTION REQUIRED: Migrate to Calendly API v2

Calendly API v1 is being retired. All integrations must migrate to API v2. See our [migration guide](/docs/getting-started/how-to-migrate-from-api-v1-to-api-v2) for details.