generated: '2026-08-09'
method: searched
status: published
source: https://www.bargo.ai/free-apis/congress/mcp
docs:
  - https://www.bargo.ai/free-apis/congress
  - https://github.com/bargo-ai/bargo-free-api-packages/blob/main/docs/mcp.md
description: >-
  Bargo hosts a focused Streamable HTTP MCP server for the Congress Trades
  dataset at https://www.bargo.ai/free-apis/congress/mcp, exposing exactly three
  narrowly scoped read-only tools. The tool list below was captured live and
  verbatim from an anonymous JSON-RPC tools/list call (saved to
  bargo-congress-trades-api-tools-list.json) — handshake and tools/list are open,
  while tool CALLS require a free fak_ API key passed as X-Api-Key, as an
  Authorization Bearer header, or as a ?token= query parameter for connector UIs
  that cannot set headers. Every tool declares execution.taskSupport = forbidden,
  i.e. synchronous calls only, no long-running agent tasks.
server:
  name: bargo-congress
  transport: http
  protocol: Streamable HTTP
  url: https://www.bargo.ai/free-apis/congress/mcp
  auth: apiKey
  auth_header: X-Api-Key
  auth_alternatives:
    - 'Authorization: Bearer <fak_ key>'
    - '?token=<fak_ key> query parameter (for connector UIs without header support)'
  key_prefix: fak_
  key_signup: https://www.bargo.ai/free-apis/dash
  anonymous_operations:
    - initialize
    - tools/list
bridge:
  description: >-
    Bargo publishes an official Docker image that bridges stdio-only MCP clients
    to the hosted Streamable HTTP endpoint. It packages the maintained mcp-remote
    bridge and embeds no key and no Congress records.
  image: bargoai/congress-trades-mcp:latest
  registry: https://hub.docker.com/r/bargoai/congress-trades-mcp
  transport: stdio
  run: docker run --rm -i -e BARGO_API_KEY="YOUR_KEY" bargoai/congress-trades-mcp:latest
  source: https://github.com/bargo-ai/bargo-free-api-packages/tree/main/docker/mcp-bridge
tools:
  - name: get_congress_trades
    description: >-
      U.S. Congress stock trades from official STOCK Act Periodic Transaction
      Reports (House Clerk + Senate eFD). Filter by ticker, member (substring),
      chamber, or type. Newest transaction first.
    input_schema:
      ticker: {type: string, minLength: 1, maxLength: 16}
      member: {type: string, minLength: 2, maxLength: 40}
      chamber: {type: string, enum: [house, senate]}
      type: {type: string, enum: [purchase, sale, exchange]}
      limit: {type: integer, minimum: 1, maximum: 200, default: 50}
    required: []
    source_operation: openapi/bargo-congress-trades-api-congress-trades-openapi.yml#listCongressTrades
  - name: get_congress_member
    description: >-
      All disclosed trades for one member of Congress plus a performance summary
      (trade count, buys/sells, average per-share return on disclosed buys).
    input_schema:
      member_slug: {type: string, minLength: 2, maxLength: 80}
      limit: {type: integer, minimum: 1, maximum: 500, default: 200}
    required: [member_slug]
    source_operation: openapi/bargo-congress-trades-api-congress-trades-openapi.yml#getCongressMember
  - name: get_congress_stats
    description: >-
      Aggregate Congress-trading stats: total trades/members/tickers, buy vs sell
      counts, latest transaction & disclosure dates, and the most-traded tickers
      over the last 90 days.
    input_schema: {}
    required: []
    source_operation: openapi/bargo-congress-trades-api-congress-trades-openapi.yml#getCongressTradeStats
related_servers:
  - name: bargo-stocks
    url: https://www.bargo.ai/mcp
    scope: out-of-scope-for-this-repo
    tools: 62
    auth: 'apiKey (swmcp_ credential, separate from the free fak_ Congress key)'
    card: well-known/bargo-congress-trades-api-mcp-server-card.json
    note: >-
      Bargo's full market-intelligence MCP server. Documented here only because
      its discovery card is served from the same host. A free Congress fak_ key
      does NOT authorize it; Bargo states this explicitly in llms.txt and in the
      published agent skill.
x-evidence:
  fetched: '2026-08-09'
  url: https://www.bargo.ai/free-apis/congress/mcp
  method: 'POST {"jsonrpc":"2.0","id":1,"method":"tools/list"}'
  http_status: 200
  content_type: application/json
  verbatim: mcp/bargo-congress-trades-api-tools-list.json