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USAspending.gov Subawards API

Subaward (pass-through award) listings scoped to a prime award.

USAspending.gov Subawards API is one of 9 APIs that USAspending.gov publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

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

This API exposes 1 operation across 1 path, and defines 4 schemas. It is described by OpenAPI 3.0.3, at version v2.

Requests are made against a single base URL, https://api.usaspending.gov/api/v2.

1 operations 1 paths 4 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
v2
Base URL
https://api.usaspending.gov/api/v2
Resource Areas
1

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Subawards 1

Subaward (pass-through award) listings scoped to a prime award.

POST
/subawards/
List subawards for a prime award
listSubawards body → 200

Schemas 4

The contract defines 4 schemas that model the data the API accepts and returns. The most detailed are PageMetadata (6 properties), SubawardResponse (6 properties), SubawardsRequest (5 properties), SubawardsResponse (2 properties). Each schema is shown below with its type and property counts.

SubawardResponse
object
6 properties
SubawardsResponse
object
2 properties
SubawardsRequest
object
5 properties 3 required
PageMetadata
object
6 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

usaspending-subawards-api-openapi.yml Raw ↑

Other APIs USAspending.gov publishes across the network.

USAspending.gov Agency API
USAspending.gov Awards Search API
USAspending.gov Budget Functions API
USAspending.gov Bulk Download API
USAspending.gov Disaster API
USAspending.gov Federal Accounts API
USAspending.gov Recipient API
USAspending.gov References API
Where this information came from

This is an independent, third-party profile of USAspending.gov Subawards 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.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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