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Congress.gov API amendments API

Returns amendment data from the API

Congress.gov API amendments API is one of 20 APIs that Congress.gov API publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Amendments. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, a GitHub repository, a changelog, and rate-limit docs.

This API exposes 8 operations across 8 paths, and defines 15 schemas. It is described by OpenAPI 3.2.0, at version 3.

Requests are made against a single base URL, /v3.

8 operations 8 paths 15 schemas 8 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
3
Base URL
https://api.congress.gov/v3
Authentication
API Key
Resource Areas
1

Authentication & Security 1

Congress.gov API amendments API declares 1 security scheme for authenticating requests. An API key is passed in the query as api_key (ApiKeyAuth). By default, every request must be authenticated.

Paths & Operations 8

Across 8 paths, the API surfaces 8 operations — 8 GET. Each is listed below with its method, path, parameters, and response codes.

amendments 8

Returns amendment data from the API

GET
/amendment
Returns a list of amendments sorted by date of latest action.
5 params → 200400
GET
/amendment/{congress}
Returns a list of amendments filtered by the specified congress, sorted by date of latest action.
6 params → 200400
GET
/amendment/{congress}/{amendmentType}
Returns a list of amendments filtered by the specified congress and amendment type, sorted by date of latest action.
7 params → 200400
GET
/amendment/{congress}/{amendmentType}/{amendmentNumber}
Returns detailed information for a specified amendment.
8 params → 200400
GET
/amendment/{congress}/{amendmentType}/{amendmentNumber}/actions
Returns the list of actions on a specified amendment.
6 params → 200400
GET
/amendment/{congress}/{amendmentType}/{amendmentNumber}/cosponsors
Returns the list of cosponsors on a specified amendment.
6 params → 200400
GET
/amendment/{congress}/{amendmentType}/{amendmentNumber}/amendments
Returns the list of amendments to a specified amendment.
6 params → 200400
GET
/amendment/{congress}/{amendmentType}/{amendmentNumber}/text
Returns the list of text versions for a specified amendment from the 117th Congress onwards.
6 params → 200400

Schemas 15

The contract defines 15 schemas that model the data the API accepts and returns. The most detailed are CoSponsor (10 properties), AmendmentNumber (10 properties), Sponsor (9 properties), Amendment (8 properties). Each schema is shown below with its type and property counts.

CoSponsor
object
10 properties
recordedVote
object
6 properties
Amendment
object
8 properties
Sponsor
object
9 properties
formats
object
2 properties
textVersion
object
2 properties
sourceSystem
object
2 properties
AmendmentText
array
AmendmentNumber
object
10 properties
textVersions
object
3 properties
AmendmentAmendments
array
AmendmentCosponsors
array
amendedBill
object
8 properties
amendmentActions
object
5 properties
AmendmentActions
array

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

congress-gov-amendments-api-openapi.yml Raw ↑

Other APIs Congress.gov API publishes across the network.

Congress.gov API bill API
Congress.gov API bound-congressional-record API
Congress.gov API committee API
Congress.gov API committee-meeting API
Congress.gov API committee-print API
Congress.gov API committee-report API
Congress.gov API congress API
Congress.gov API congressional-record API
Congress.gov API crsreport API
Congress.gov API daily-congressional-record API
Congress.gov API hearing API
Congress.gov API house-communication API
Where this information came from

This is an independent, third-party profile of Congress.gov API amendments 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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