What is the U.S. Congress MCP Server?

The Congress.gov MCP Server gives AI agents like Claude, ChatGPT, and Cursor direct access to Congress.gov. Query U.S. legislative data via AI — search bills, members, amendments, treaties, nominations, committees, and congressional records. Powered by the Vinkius AI Gateway — no API keys, no infrastructure, connect in under 2 minutes.

Congress.gov MCP Server: see your AI Agent in action

AI Agent→Vinkius→U.S. Congress
You

Vinkius AI Gateway
GDPR·High Security·Kill Switch·Ultra-Low Latency·Plug and Play

Built-in capabilities (8)

get_bill_details

Get full details for a specific legislative bill

list_congress_amendments

List legislative amendments

list_congress_bills

gov database. List bills from the current or specified Congress

list_congress_committees

List congressional committees

list_congress_members

List current or past members of the US Congress

list_congress_nominations

List executive and judicial nominations

list_congress_sessions

g., 118th, 117th) and their start and end dates. List historical congressional sessions

list_congress_treaties

List treaties handled by Congress

What this connector unlocks

Connect the U.S. Congress API to your AI agent and access comprehensive legislative data through natural conversation.

What you can do

  • Bill Research — Search and browse bills across congressional sessions with full text and status tracking
  • Member Lookup — List current and past members of Congress with biographical and voting data
  • Amendment Tracking — Browse amendments to bills and resolutions
  • Treaty Analysis — Access treaty submissions and their current status
  • Nomination Tracking — Monitor presidential nominations through the confirmation process
  • Committee Navigation — Browse congressional committees and their jurisdictions
  • Congress History — Access session data across historical congresses

How it works

1. Subscribe to this server
2. Get a free API key from [Congress.gov](https://api.congress.gov/sign-up/)
3. Start researching legislation from Claude, Cursor, or any MCP-compatible client

Who is this for?

  • Policy Researchers — quickly find bills, track their progress, and analyze legislative trends
  • Journalists — research congressional activity, member records, and committee hearings
  • Civic Tech Developers — build apps that make legislative data accessible to citizens

Frequently asked questions

Give your AI agents the power of Congress.gov

Access Congress.gov and 2,500+ MCP servers — ready for your agents to use, right now. No glue code. No custom integrations. Just plug Vinkius AI Gateway and let your agents work.