How AI is applied across API Evangelist and APIs.io. Read my AI disclosure →
API Evangelist API Evangelist
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC
Discovery
Learnings
Guidance
Toolbox
Alignment
API Evangelist LLC

Need help?

Contact us
Plinth US Grants Data

Plinth US Grants Data Grants API

The funder-grantee graph: grants, funders, recipients and aggregates.

Documentation Provider Profile APIs.io OpenAPI GitHub

Plinth US Grants Data Grants API is one of 5 APIs that Plinth US Grants Data publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Grants. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and rate-limit docs.

This API exposes 4 operations across 4 paths, and defines 3 schemas. It is described by OpenAPI 3.2.0, at version 1.0.0.

Requests are made against a single base URL, https://data.useplinth.com.

4 operations 4 paths 3 schemas 4 GET

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0.0
Base URL
https://data.useplinth.com/api
Authentication
API Key
Contact
Plinth
License
Source data: IRS public domain
Terms of Service
View terms
Resource Areas
1

Authentication & Security 1

Plinth US Grants Data Grants API declares 1 security scheme for authenticating requests. An API key is passed in the header as X-API-Key (ApiKeyAuth). By default, every request must be authenticated.

  • ApiKeyAuth — Free key includes 50 calls a month; higher volume on a paid plan. Get one at https://data.useplinth.com/pricing.

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 GET. Each is listed below with its method, path, parameters, and response codes.

Grants 4

The funder-grantee graph: grants, funders, recipients and aggregates.

GET
/api/grants/transactions
List individual grants
listGrants 11 params → 200401402422
GET
/api/grants/funders
Rank funders by giving
listFunders 9 params → 200401402422
GET
/api/grants/recipients
Rank recipients by what they received
listRecipients 9 params → 200401402422
GET
/api/grants/summary
Aggregate totals for a filter
getGrantsSummary 7 params → 200401402422

Schemas 3

The contract defines 3 schemas that model the data the API accepts and returns. The most detailed are ValidationError (5 properties), ApiError (2 properties), HTTPValidationError (1 property). Each schema is shown below with its type and property counts.

HTTPValidationError
object
1 property
ApiError
object
Every failure answers with this envelope; message is safe to show a user.
2 properties 2 required
ValidationError
object
5 properties 3 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

plinth-us-grants-data-grants-api-openapi.yml Raw ↑

Other APIs Plinth US Grants Data publishes across the network.

Plinth US Grants Data Analyze API
AE Profile APIs.io
Plinth US Grants Data Organizations API
AE Profile APIs.io
Plinth US Grants Data Resolve API
AE Profile APIs.io
Plinth US Grants Data SQL API
AE Profile APIs.io
#Grants
← Back to P APIs
API Details
ID
plinth-us-grants-data:plinth-us-grants-data-grants-api
Base URL
https://data.useplinth.com/api
Docs
https://data.useplinth.com/developers
Provider
Plinth US Grants Data
APIs.io →  GitHub →
Explore more
All APIs Providers APIs.io Network
Work with this as data

Every API here is available over the API and to AI agents over MCP. APIs is not yet its own endpoint on the v1 API. Reach this content through network search and the tag graph, or the MCP server below.

Installs https://mcp.apievangelist.com/mcp in Claude, Cursor, VS Code and the rest — one button, every client.

MCP tools for apis
4 tools reach this content
  • search_api_evangelistSearch every content type across the network at once.
  • find_relatedThe shared-tag relevance graph — what else covers this.
  • get_tagEverything one tag labels, across all content types.
  • guide_topicPRO — a curated bundle for a topic: area, guidance, rules, papers, stories, services.
All tools & prompts
Call it yourself
curl for this page
Search the network for this 
curl "https://api.apievangelist.com/v1/search?q=plinth-us-grants-data-grants-api&limit=10"
Everything under a tag 
curl "https://api.apievangelist.com/v1/tags/plinth-us-grants-data-grants-api"

Discovery needs no key. Full bodies and the synthesis endpoints are Pro.

Get an API key

Free tier, no email required. Sign in with whichever identity you already have.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have. Your account

Where this information came from

This is an independent, third-party profile of Plinth US Grants Data Grants 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.

info@apievangelist.com · Read the full data-sourcing policy →
On a security or compliance team? Put security in the subject line and you will get a person, not a form — we will tell you exactly which public URLs this profile was built from.