Congress.gov API

Congress.gov API Hearing API

Returns hearing data from the API

GitHub OpenAPI
Business capability
Legislative Process Coordination BC-3210.50

Operations 4

GET /hearing Returns a list of hearings #
GET /hearing/{congress} Returns a list of hearings filtered by specified congress #
GET /hearing/{congress}/{chamber} Returns a list of hearings filtered by specified congress and chamber #
GET /hearing/{congress}/{chamber}/{jacketNumber} Returns detailed information for a specified hearing #

Documentation

📖
Documentation
https://github.com/LibraryOfCongress/api.congress.gov
📖
RateLimits
https://raw.githubusercontent.com/api-evangelist/congress-gov/refs/heads/main/rate-limits/congress-gov-rate-limits.yml

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/congress-gov/refs/heads/main/openapi/congress-gov-hearing-api-openapi.yml

SDKs

📦
GitHubRepository
https://github.com/LibraryOfCongress/api.congress.gov

Other Resources

🔗
PostmanCollection
https://documenter.getpostman.com/view/6803158/VV56LCkZ
🔗
Signup
https://api.congress.gov/sign-up/
🔗
ChangeLog
https://github.com/LibraryOfCongress/api.congress.gov/blob/main/ChangeLog.md
🔗
CoverageDates
https://www.congress.gov/help/coverage-dates
🔗
DataOffsite
https://www.congress.gov/help/using-data-offsite
🔗
ApiKeyInfo
https://api.data.gov/docs/api-key/
🔗
Issues
https://github.com/LibraryOfCongress/api.congress.gov/issues
🔗
Plans
https://raw.githubusercontent.com/api-evangelist/congress-gov/refs/heads/main/plans/congress-gov-plans-pricing.yml
🔗
FinOps
https://raw.githubusercontent.com/api-evangelist/congress-gov/refs/heads/main/finops/congress-gov-finops.yml

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/congress-gov-hearing-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.

GitHub Google LinkedIn

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

OpenAPI Specification

congress-gov-hearing-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  description: Congress.gov shares its application programming interface (API) with the public to ingest the Congressional data. Sign up for an API key from api.data.gov that you can use to access web services provided by Congress.gov. To learn more, view our GitHub repository.
  title: Congress.gov Hearing API
  version: '3'
servers:
- url: /v3
security:
- ApiKeyAuth: []
tags:
- name: hearing
  description: Returns hearing data from the API
paths:
  /hearing:
    get:
      tags:
      - hearing
      summary: Returns a list of hearings
      description: Returns a list of hearings.
      parameters:
      - $ref: '#/components/parameters/format'
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/limit'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Hearings'
            application/xml:
              schema:
                $ref: '#/components/schemas/Hearings'
        '400':
          description: Invalid status value
      operationId: getHearing
      x-operation-id-source: derived
  /hearing/{congress}:
    get:
      tags:
      - hearing
      summary: Returns a list of hearings filtered by specified congress
      description: Returns a list of hearings filtered by specified congress.
      parameters:
      - $ref: '#/components/parameters/congress'
      - $ref: '#/components/parameters/format'
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/limit'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Hearings'
            application/xml:
              schema:
                $ref: '#/components/schemas/Hearings'
        '400':
          description: Invalid status value
      operationId: getHearingByCongress
      x-operation-id-source: derived
  /hearing/{congress}/{chamber}:
    get:
      tags:
      - hearing
      summary: Returns a list of hearings filtered by specified congress and chamber
      description: Returns a list of hearings filtered by specified congress and chamber.
      parameters:
      - $ref: '#/components/parameters/congress'
      - $ref: '#/components/parameters/chamber'
      - $ref: '#/components/parameters/format'
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/limit'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Hearings'
            application/xml:
              schema:
                $ref: '#/components/schemas/Hearings'
        '400':
          description: Invalid status value
      operationId: getHearingByCongressByChamber
      x-operation-id-source: derived
  /hearing/{congress}/{chamber}/{jacketNumber}:
    get:
      tags:
      - hearing
      summary: Returns detailed information for a specified hearing
      description: Returns detailed information for a specified hearing.
      parameters:
      - $ref: '#/components/parameters/congress'
      - $ref: '#/components/parameters/chamber'
      - $ref: '#/components/parameters/jacketNumber'
      - $ref: '#/components/parameters/format'
      - $ref: '#/components/parameters/offset'
      - $ref: '#/components/parameters/limit'
      responses:
        '200':
          description: Successful operation
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HearingDetail'
            application/xml:
              schema:
                $ref: '#/components/schemas/HearingDetail'
        '400':
          description: Invalid status value
      operationId: getHearingByCongressByChamberByJacketNumber
      x-operation-id-source: derived
components:
  parameters:
    congress:
      name: congress
      in: path
      description: The congress number. For example, can be 117.
      required: true
      schema:
        type: integer
        format: int32
    chamber:
      name: chamber
      in: path
      description: The chamber name. Value can be house, senate, or joint.
      required: true
      schema:
        type: string
        enum:
        - house
        - senate
        - joint
    jacketNumber:
      name: jacketNumber
      in: path
      description: The jacket number for the print. For example, the value can be 48144.
      required: true
      schema:
        type: integer
    format:
      name: format
      in: query
      description: The data format. Value can be xml or json.
      required: false
      schema:
        type: string
        default: xml
        enum:
        - xml
        - json
    limit:
      name: limit
      in: query
      description: The number of records returned. The maximum limit is 250.
      required: false
      schema:
        type: integer
    offset:
      name: offset
      in: query
      description: The starting record returned. 0 is the first record.
      required: false
      schema:
        type: integer
  schemas:
    associatedMeeting:
      type: object
      properties:
        eventId:
          type: string
          example: '115266'
        url:
          type: string
          format: url
          example: https://api.congress.gov/v3/committee-meeting/117/house/115266?format=json
    HearingDetail:
      type: object
      properties:
        associatedMeeting:
          $ref: '#/components/schemas/associatedMeeting'
        chamber:
          type: string
          example: House
        citation:
          type: string
          example: H.Hrg.118
        committees:
          type: array
          items:
            $ref: '#/components/schemas/subcommittees'
        congress:
          type: integer
          example: 118
        dates:
          type: array
          items:
            type: string
            format: date
            example: '2022-08-01'
        formats:
          type: array
          items:
            $ref: '#/components/schemas/formats'
        jacketNumber:
          type: integer
          example: 50896
        libraryOfCongressidentifier:
          type: string
          example: LC70380
        title:
          type: string
          example: 'FEDERAL PANDEMIC SPENDING: A PRESCRIPTION FOR WASTE, FRAUD AND ABUSE'
        updateDate:
          type: string
          format: date-time
          example: '2025-11-04T03:21:12Z'
    subcommittees:
      type: object
      properties:
        name:
          type: string
          example: Investigations and Oversight Subcommittee
        systemCode:
          type: string
          example: hspw01
        url:
          type: string
          format: url
          example: https://api.congress.gov/v3/committee/house/hspw01?format=json
    hearing:
      type: object
      properties:
        chamber:
          type: string
          example: House
        congress:
          type: integer
          example: 117
        jacketNumber:
          type: integer
          example: 48144
        updateDate:
          type: string
          format: date-time
          example: '2022-08-01 21:19:33+00:00'
        url:
          type: string
          format: url
          example: https://api.congress.gov/v3/hearing/117/house/41365?format=json
    formats:
      type: object
      properties:
        type:
          type: string
          example: Formatted Text
        url:
          type: string
          format: url
          example: https://www.congress.gov/117/bills/hr3076/BILLS-117hr3076enr.htm
    Hearings:
      type: array
      items:
        $ref: '#/components/schemas/hearing'
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: query
      name: api_key