Library of Congress

Library of Congress Members API

The Members API from Library of Congress — 2 operation(s) for members.

GitHub OpenAPI

Documentation

📖
Documentation
https://www.loc.gov/apis/json-and-yaml/
📖
Documentation
https://chroniclingamerica.loc.gov/about/api/
📖
Documentation
https://github.com/LibraryOfCongress/api.congress.gov/

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/library-of-congress/refs/heads/main/openapi/library-of-congress-members-api-openapi.yml

Other Resources

🔗
Reference
https://www.loc.gov/apis/json-and-yaml/requests/
🔗
Signup
https://api.congress.gov/sign-up/

OpenAPI Specification

library-of-congress-members-api-openapi.yml Raw ↑ 
openapi: 3.1.0
info:
  title: Library of Congress Chronicling America Bills Members API
  description: The Chronicling America API exposes historic American newspapers digitized through the National Digital Newspaper Program, providing search and metadata access to newspaper pages, issues, and titles.
  version: 1.0.0
  contact:
    name: Library of Congress
    url: https://chroniclingamerica.loc.gov/about/api/
servers:
- url: https://chroniclingamerica.loc.gov
  description: Production
tags:
- name: Members
paths:
  /member:
    get:
      operationId: listMembers
      summary: List Members
      description: List members of Congress.
      tags:
      - Members
      parameters:
      - $ref: '#/components/parameters/Format'
      - $ref: '#/components/parameters/Offset'
      - $ref: '#/components/parameters/Limit'
      responses:
        '200':
          description: Members list
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/MemberList'
  /member/{bioguideId}:
    get:
      operationId: getMember
      summary: Get Member
      tags:
      - Members
      parameters:
      - name: bioguideId
        in: path
        required: true
        schema:
          type: string
      - $ref: '#/components/parameters/Format'
      responses:
        '200':
          description: Member detail
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Member'
components:
  schemas:
    MemberList:
      type: object
      properties:
        members:
          type: array
          items:
            $ref: '#/components/schemas/Member'
        pagination:
          $ref: '#/components/schemas/Pagination'
    Member:
      type: object
      properties:
        bioguideId:
          type: string
        name:
          type: string
        state:
          type: string
        party:
          type: string
        chamber:
          type: string
        url:
          type: string
          format: uri
    Pagination:
      type: object
      properties:
        count:
          type: integer
        next:
          type: string
        prev:
          type: string
  parameters:
    Format:
      name: format
      in: query
      schema:
        type: string
        enum:
        - json
        - xml
        default: json
    Limit:
      name: limit
      in: query
      schema:
        type: integer
        default: 20
        maximum: 250
    Offset:
      name: offset
      in: query
      schema:
        type: integer
        default: 0