# CongressMCP MCP Server

**Canonical:** https://apis.io/apis/congressmcp-com/congressmcp-mcp-server/  
**Provider:** CongressMCP — https://apis.io/providers/congressmcp-com/  
**Base URL:** https://www.congressmcp.com/mcp  
**Documentation:** https://congressmcp.com/docs

CongressMCP MCP Server is one of 2 APIs that [CongressMCP](https://apis.io/providers/congressmcp-com/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include MCP and Legislation. The published artifact set on APIs.io includes API documentation and a getting-started guide.

Single Streamable HTTP MCP endpoint (JSON-RPC 2.0 over POST) over CongressMCP's independently operated federal and 50-state legislative data snapshot; the docs say it starts with fifty-six research tools (bill, member and vote context, state bills, legislators and votes, dataset query/search) and expands to 221 tools with workspace, automation and Watch Mode permissions. Auth is OAuth 2.1 with PKCE or a Bearer sk_live_ API key; anonymous tools/list returns 401.

## Machine-readable artifacts (3)

- **Documentation** — https://congressmcp.com/docs
- **GettingStarted** — https://congressmcp.com/connect
- **APIsJSON** — https://artifacts.apis.io/congressmcp-com/apis.yml

## Other CongressMCP APIs (1)

- [CongressMCP Workspace Research REST API](https://apis.io/apis/congressmcp-com/congressmcp-workspace-research-rest-api/)

## Tags

MCP, Legislation

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/congressmcp-com/congressmcp-mcp-server/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/congressmcp-com/.