Gavelin MCP Server

State legislative intelligence for AI agents. The only MCP server with speaker-attributed hearing transcripts from US state legislatures.

Search bills across all 50 states, find what legislators said in hearings, get full committee hearing transcripts with speaker attribution — all via the Model Context Protocol.

Connect

Server URL: https://mcp.gavelin.ai/mcp

Claude Desktop

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "gavelin": {
      "url": "https://mcp.gavelin.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Claude Code

{
  "mcpServers": {
    "gavelin": {
      "type": "url",
      "url": "https://mcp.gavelin.ai/mcp",
      "headers": {
        "Authorization": "Bearer YOUR_API_KEY"
      }
    }
  }
}

Any MCP Client

The server uses Streamable HTTP transport. Any MCP-compatible client (Cursor, Windsurf, custom agents) can connect with the URL and a bearer token.

Get an API Key

Sign up at gavelin.ai and generate an API key from your Account page under "Developer API."

Available Tools

search_bills

Search bills across all 50 US states + DC by keyword, sponsor, committee, status, or chamber. Covers multiple legislative sessions with full detail including sponsors, subjects, and legislative history.

Example queries an agent might make:

• "What housing bills are pending in California?"
• "Find bills sponsored by Rivera in New York"
• "Search for cannabis legislation that passed in 2025"

search_hearing_testimony

Search speaker-attributed hearing and floor session segments. Find what specific legislators or witnesses said about any topic. Returns speaker name, role, committee, date, and surrounding context.

Example queries:

• "What has Senator Krueger said about affordable housing?"
• "Find testimony about SNAP benefits in Finance committee hearings"

get_bill_detail

Get full details on a specific bill including sponsor, subjects, committee, legislative history, and any hearing mentions.

get_speaker_activity

Get everything a specific legislator or witness has said in hearings and floor sessions. Useful for opposition research, coalition mapping, and pre-meeting preparation.

search_committee_hearings

Browse committee and public hearings by topic, committee, chamber, or date range.

get_hearing_transcript

Get the full transcript of a specific hearing with all speakers labeled by name.

list_available_states

See which states have data and what type (bills, transcripts, or both).

Rate Limits

Plan	Limit
Starter	100 calls/hour
Professional	500 calls/hour
Enterprise	Custom

What Makes This Different

Every government affairs team will have AI agents doing policy research. Those agents need clean, structured legislative data. Gavelin is the access layer.

• Speaker attribution — real names on hearing testimony, not "Speaker A/B"
• All 50 states — not just federal, not just one state
• Historical depth — multiple years of legislative sessions
• Authenticated + rate-limited — production-ready for team workflows

No other MCP server has speaker-attributed state legislative hearing transcripts.

About

Gavelin is an AI-powered legislative intelligence platform.

• Web app: gavelin.ai
• Contact: hello@gavelin.ai
• Pricing: gavelin.ai — Starter, Professional, and Enterprise plans

License

This repository contains documentation only. The Gavelin MCP server is a proprietary hosted service.