Library of Congress Committees API

The Committees API from Library of Congress — 1 operation(s) for committees.

Operations 1

GET /committee List Committees #

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/library-of-congress-committees-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

OpenAPI Specification

library-of-congress-committees-api-openapi.yml Raw ↑
openapi: 3.2.0
info:
  title: Library of Congress Congress.gov Committees API
  description: The Congress.gov API provides programmatic access to legislative information from the U.S. Congress, including bills, laws, members, committees, amendments, and Congressional Record content. An API key is required for access.
  version: 1.0.0
  contact:
    name: Library of Congress
    url: https://api.congress.gov/
servers:
- url: https://api.congress.gov/v3
  description: Production
security:
- ApiKeyAuth: []
tags:
- name: Committees
paths:
  /committee:
    get:
      operationId: listCommittees
      summary: List Committees
      tags:
      - Committees
      parameters:
      - $ref: '#/components/parameters/Format'
      - $ref: '#/components/parameters/Offset'
      - $ref: '#/components/parameters/Limit'
      responses:
        '200':
          description: Committees list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CommitteeList'
components:
  parameters:
    Offset:
      name: offset
      in: query
      schema:
        type: integer
        default: 0
    Limit:
      name: limit
      in: query
      schema:
        type: integer
        default: 20
        maximum: 250
    Format:
      name: format
      in: query
      schema:
        type: string
        enum:
        - json
        - xml
        default: json
  schemas:
    Pagination:
      type: object
      properties:
        count:
          type: integer
        next:
          type: string
        prev:
          type: string
    CommitteeList:
      type: object
      properties:
        committees:
          type: array
          items:
            type: object
            properties:
              name:
                type: string
              chamber:
                type: string
              systemCode:
                type: string
              url:
                type: string
                format: uri
        pagination:
          $ref: '#/components/schemas/Pagination'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: api_key