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US Senate Filings API

Lobbying disclosure filings (LD-1, LD-2, LD-203)

US Senate Filings API is one of 6 APIs that US Senate publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Filings. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 2 operations across 2 paths, and defines 6 schemas. It is described by OpenAPI 3.0.1, at version 1.0.

Requests are made against a single base URL, https://lda.senate.gov/api/v1.

2 operations 2 paths 6 schemas 2 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.1
API Version
1.0
Server
https://lda.senate.gov/api/v1
Authentication
API Key
Resource Areas
1

Authentication & Security 1

US Senate Filings API declares 1 security scheme for authenticating requests. An API key is passed in the header as Authorization (ApiKeyAuth). By default, every request must be authenticated, though some operations may also be called without credentials.

  • ApiKeyAuth — Token-based auth. Format: 'Token YOURAPIKEY'

Paths & Operations 2

Across 2 paths, the API surfaces 2 operations — 2 GET. Each is listed below with its method, path, parameters, and response codes.

Filings 2

Lobbying disclosure filings (LD-1, LD-2, LD-203)

GET
/filings/
List Lobbying Disclosure Filings
listFilings 13 params → 200401429
GET
/filings/{filing_uuid}/
Get Lobbying Filing by UUID
getFiling 2 params → 200404

Schemas 6

The contract defines 6 schemas that model the data the API accepts and returns. The most detailed are Filing (14 properties), Registrant (13 properties), Client (9 properties), Lobbyist (8 properties). Each schema is shown below with its type and property counts.

Lobbyist
object
An individual lobbyist
8 properties
Client
object
A client on whose behalf lobbying activities are conducted
9 properties
FilingListResponse
object
4 properties
Filing
object
A lobbying disclosure filing (LD-1, LD-2, or LD-203)
14 properties
Registrant
object
A lobbying firm or self-employed lobbyist registration
13 properties
LobbyingActivity
object
A lobbying activity record within a filing
5 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

us-senate-filings-api-openapi.yml Raw ↑

Other APIs US Senate publishes across the network.

US Senate Clients API
US Senate Constants API
US Senate Contributions API
US Senate Lobbyists API
US Senate Registrants API
Where this information came from

This is an independent, third-party profile of US Senate Filings API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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