# 911CPB-MCP > Read-only access to the CRM Postgres database over MCP (Streamable HTTP) or a REST/OpenAPI API. Auth with OAuth 2.1 on /mcp, or an access key via Authorization: Bearer / X-API-Key. ## Documentation Sets - [Abridged documentation](https://mcp.911cpb.org/llms-small.txt): a compact version of the documentation for 911CPB-MCP, with non-essential content removed - [Complete documentation](https://mcp.911cpb.org/llms-full.txt): the full documentation for 911CPB-MCP ## Notes - The complete documentation includes all content from the official documentation - The content is automatically generated from the same source as the official documentation