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US Senate

The United States Senate is one of the two chambers of Congress, responsible for representing the interests of the individual states and ensuring that federal legislation is passed in a fair and representative manner. The Senate plays a crucial role in the legislative process, with its members debating and voting on bills and resolutions that affect the country as a whole. The Senate also administers the Lobbying Disclosure Act (LDA) reporting system, which requires lobbyists and lobbying firms to register and report their activities, clients, and campaign contributions for public transparency.

1 APIs 0 Features
Federal GovernmentLobbyingGovernment TransparencyCampaign FinanceOpen Data

APIs

Senate Lobbying Disclosure Act (LDA) API

The Senate Lobbying Disclosure Act (LDA) REST API provides public access to lobbying disclosure filings, registrations, quarterly activity reports (LD-2), and semi-annual contri...

Collections

US Senate Lobbying Disclosure Act (LDA) API

OPEN

Pricing Plans

Us Senate Plans Pricing

3 plans

PLANS

Rate Limits

Us Senate Rate Limits

5 limits

RATE LIMITS

FinOps

Us Senate Finops

FINOPS

Semantic Vocabularies

Us Senate Context

4 classes · 19 properties

JSON-LD

API Governance Rules

US Senate API Rules

7 rules · 2 errors 3 warnings 2 info

SPECTRAL

JSON Structure

Us Senate Lda Filing Structure

0 properties

JSON STRUCTURE

Example Payloads

Lda Get Registrant Example

2 fields

EXAMPLE

Lda List Filings Example

2 fields

EXAMPLE

Resources

🔗
LinkedIn
LinkedIn

Sources

Raw ↑ 
opencollection: 1.0.0
info:
  name: US Senate Lobbying Disclosure Act (LDA) API
  version: '1.0'
request:
  auth:
    type: apikey
    key: Authorization
    value: '{{Authorization}}'
    placement: header
items:
- info:
    name: Filings
    type: folder
  items:
  - info:
      name: List Lobbying Disclosure Filings
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/filings/
      params:
      - name: filing_type
        value: ''
        type: query
        description: Filing type code (e.g., LD1=Registration, LD2=Quarterly Report, MM=Mid-Year Report)
      - name: filing_year
        value: ''
        type: query
        description: Year of the filing
      - name: filing_period
        value: ''
        type: query
        description: Filing period (e.g., first_quarter, second_quarter, mid_year, year_end)
      - name: registrant_id
        value: ''
        type: query
        description: Filter by registrant ID
      - name: client_id
        value: ''
        type: query
        description: Filter by client ID
      - name: registrant_name
        value: ''
        type: query
        description: Filter by registrant name (partial match)
      - name: client_name
        value: ''
        type: query
        description: Filter by client name (partial match)
      - name: lobbyist_name
        value: ''
        type: query
        description: Filter by lobbyist name
      - name: issue_code
        value: ''
        type: query
        description: Filter by lobbying issue code (e.g., TAX, HCR, DEF)
      - name: dt_posted
        value: ''
        type: query
        description: Filter by date posted (ISO 8601 date)
      - name: page
        value: ''
        type: query
        description: Page number for pagination
      - name: limit
        value: ''
        type: query
        description: Number of results per page (default 25, max 25)
      - name: format
        value: ''
        type: query
        description: Response format
    docs: Returns a paginated list of lobbying disclosure filings. Supports filtering by filing type, year, period, registrant,
      and client.
  - info:
      name: Get Lobbying Filing by UUID
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/filings/:filing_uuid/
      params:
      - name: filing_uuid
        value: ''
        type: path
        description: Unique identifier (UUID) of the filing
      - name: format
        value: ''
        type: query
    docs: Retrieve a specific lobbying disclosure filing by its UUID.
- info:
    name: Registrants
    type: folder
  items:
  - info:
      name: List Lobbying Registrants
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/registrants/
      params:
      - name: name
        value: ''
        type: query
        description: Filter by registrant name (partial match)
      - name: page
        value: ''
        type: query
      - name: format
        value: ''
        type: query
    docs: Returns a paginated list of lobbying registrants (firms and individuals).
  - info:
      name: Get Registrant by ID
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/registrants/:id/
      params:
      - name: id
        value: ''
        type: path
        description: Registrant ID
      - name: format
        value: ''
        type: query
    docs: Retrieve a specific lobbying registrant by ID.
- info:
    name: Clients
    type: folder
  items:
  - info:
      name: List Lobbying Clients
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/clients/
      params:
      - name: name
        value: ''
        type: query
        description: Filter by client name (partial match)
      - name: page
        value: ''
        type: query
      - name: format
        value: ''
        type: query
    docs: Returns a paginated list of clients on whose behalf lobbying is conducted.
  - info:
      name: Get Client by ID
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/clients/:id/
      params:
      - name: id
        value: ''
        type: path
        description: Client ID
      - name: format
        value: ''
        type: query
    docs: Retrieve a specific lobbying client by ID.
- info:
    name: Lobbyists
    type: folder
  items:
  - info:
      name: List Lobbyists
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/lobbyists/
      params:
      - name: name
        value: ''
        type: query
        description: Filter by lobbyist name (partial match)
      - name: page
        value: ''
        type: query
      - name: format
        value: ''
        type: query
    docs: Returns a paginated list of individual lobbyist records.
  - info:
      name: Get Lobbyist by ID
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/lobbyists/:id/
      params:
      - name: id
        value: ''
        type: path
        description: Lobbyist ID
      - name: format
        value: ''
        type: query
    docs: Retrieve a specific lobbyist record by ID.
- info:
    name: Contributions
    type: folder
  items:
  - info:
      name: List Contribution Reports (LD-203)
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/contributions/
      params:
      - name: registrant_name
        value: ''
        type: query
        description: Filter by registrant name
      - name: filing_year
        value: ''
        type: query
      - name: filing_period
        value: ''
        type: query
      - name: page
        value: ''
        type: query
      - name: format
        value: ''
        type: query
    docs: Returns a paginated list of semi-annual campaign contribution reports.
- info:
    name: Constants
    type: folder
  items:
  - info:
      name: Get Filing Type Codes
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/constants/filing/filingtypes/
      params:
      - name: format
        value: ''
        type: query
    docs: Returns all LDA filing type codes and their descriptions.
  - info:
      name: Get Lobbying Activity Issue Codes
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/constants/filing/lobbyingactivityissues/
      params:
      - name: format
        value: ''
        type: query
    docs: Returns all issue area codes used to categorize lobbying activities.
  - info:
      name: Get Government Entity Codes
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/constants/filing/governmententities/
      params:
      - name: format
        value: ''
        type: query
    docs: Returns all government entity codes for lobbied agencies and bodies.
  - info:
      name: Get Country Codes
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/constants/general/countries/
    docs: Returns country code reference data.
  - info:
      name: Get US State Codes
      type: http
    http:
      method: GET
      url: https://lda.senate.gov/api/v1/constants/general/states/
    docs: Returns US state code reference data.
bundled: true