# congressgov-mcp-server MCP server

Access U.S. congressional data - bills, votes, members, committees - via MCP.

## Links
- Registry page: https://www.getdrio.com/mcp/io-github-cyanheads-congressgov-mcp-server
- Repository: https://github.com/cyanheads/congressgov-mcp-server

## Install
- Command: `npx -y @cyanheads/congressgov-mcp-server`
- Endpoint: https://congressgov.caseyjhand.com/mcp
- Auth: Auth required by registry metadata

## Setup notes
- Package: Npm @cyanheads/congressgov-mcp-server v0.3.9
- Environment variable: CONGRESS_API_KEY (required)
- Environment variable: MCP_LOG_LEVEL (default info)
- Package: Npm @cyanheads/congressgov-mcp-server v0.3.9
- Environment variable: CONGRESS_API_KEY (required)
- Environment variable: MCP_HTTP_HOST (default 127.0.0.1)
- Environment variable: MCP_HTTP_PORT (default 3010)
- Environment variable: MCP_HTTP_ENDPOINT_PATH (default /mcp)
- Environment variable: MCP_AUTH_MODE (default none)
- Environment variable: MCP_LOG_LEVEL (default info)
- The upstream registry signals required auth or secrets.
- Remote endpoint: https://congressgov.caseyjhand.com/mcp

## Tools
- congressgov_bill_lookup (Congressgov Bill Lookup) - Browse and retrieve U.S. legislative bill data from Congress.gov. Discover bills by filtering on congress, bill type, and date range — there is no keyword search. Use 'list' to browse (requires congress), 'get' for full bill detail (sponsor, policy area, CBO estimates, law info), or drill into a specific bill with 'actions', 'amendments', 'cosponsors', 'committees', 'subjects', 'summaries', 'text', 'titles', or 'related' (each requires congress + billType + billNumber). Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_enacted_laws (Congressgov Enacted Laws) - Browse enacted public and private laws from Congress.gov. Use 'list' to browse laws by congress, or 'get' for a specific law's full detail. Each law references its origin bill for the full legislative history. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_member_lookup (Congressgov Member Lookup) - Discover congressional members and their legislative activity. There is no name search — use 'list' with stateCode (optionally with district), with a congress number, or with currentMember=true to find members. Once you have a bioguideId, use 'get' for full profile or 'sponsored'/'cosponsored' for their legislative portfolio. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_committee_lookup (Congressgov Committee Lookup) - Browse congressional committees and their legislation, reports, and nominations. Committee codes follow the pattern chamber-prefix (h/s/j) + abbreviation + number — use 'list' to discover codes, then 'get' or drill into 'bills', 'reports', or 'nominations' ('nominations' is Senate-only). The 'bills' sub-resource defaults to 'recent' order (newest update-date first); pass order='oldest' for ascending update-date order. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_roll_votes (Congressgov Roll Votes) - Retrieve House roll call vote data and individual member voting positions — House-only, as Senate vote data is not yet in the Congress.gov API. Use 'list' to find votes by congress and session, 'get' for vote details (question, result, associated bill), or 'members' for how each representative voted. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_senate_nominations (Congressgov Senate Nominations) - Browse presidential nominations to federal positions and track the Senate confirmation process. Use 'list' to browse, 'get' for nomination detail, 'actions'/'committees'/'hearings' for confirmation pipeline data, or 'nominees' to retrieve individual appointees in a multi-nominee batch. Nominations use 'PN' (Presidential Nomination) numbering, and a single nomination may contain multiple nominees. Partitioned nominations (e.g., PN230-1, PN230-2) occur when nominees within one nomination follow different confirmation paths. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_bill_summaries (Congressgov Bill Summaries) - Browse recent CRS (Congressional Research Service) bill summaries — plain-language summaries of bills at each legislative stage, useful for answering "what's happening in Congress?". The fromDateTime/toDateTime filters apply to the summary's update time, not the bill's action date, so results include recently rewritten summaries of older bills. Defaults to summaries updated in the last 7 days. Each item shows both the bill's action date and the summary update date. For summaries of one specific bill, use congressgov_bill_lookup with operation='summaries' instead. Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_crs_reports (Congressgov Crs Reports) - Browse and retrieve CRS (Congressional Research Service) reports — nonpartisan policy analyses by subject-matter experts at the Library of Congress, covering policy areas, legislative proposals, and legal questions. Report IDs use letter-number codes (e.g., R40097, RL33612, IF12345). Use 'list' to browse available reports or 'get' for full detail (authors, topics, summary, download formats). Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_committee_reports (Congressgov Committee Reports) - Browse and retrieve committee reports from Congress.gov — reports accompany legislation reported out of committee and explain the bill's purpose, committee amendments, dissenting views, and the committee vote. Report types are 'hrpt' (House), 'srpt' (Senate), and 'erpt' (Executive). Endpoint: https://congressgov.caseyjhand.com/mcp
- congressgov_daily_record (Congressgov Daily Record) - Browse the daily Congressional Record — floor speeches, debates, and legislative text published each day Congress is in session. Navigation is hierarchical: volumes (via 'list') → issues (via 'issues') → articles (via 'articles'). Use 'list' to find recent volumes, 'issues' to see what's in a volume, and 'articles' to access individual speeches and debate sections. Endpoint: https://congressgov.caseyjhand.com/mcp

## Resources
- congress://current - current-congress Current congress number, session dates, and chamber info. Baseline context for queries. MIME type: application/json
- congress://bill-types - bill-types Reference table of valid bill type codes (hr, s, hjres, etc.) with descriptions. MIME type: application/json

## Prompts
- congressgov_bill_analysis - Structured framework for analyzing a bill: summary, sponsors, committee referrals, action timeline, related legislation, policy implications, and outlook. Arguments: congress, billType, billNumber
- congressgov_legislative_research - Research framework for investigating a policy area across Congress: relevant bills, key members, committee activity, CRS reports, and floor activity. Arguments: topic, congress

## Metadata
- Owner: io.github.cyanheads
- Version: 0.3.9
- Runtime: Npm
- Transports: STDIO, HTTP
- License: Not captured
- Language: Not captured
- Stars: Not captured
- Updated: Apr 19, 2026
- Source: https://registry.modelcontextprotocol.io