# Plinth US Grants Data Credentials API

**Canonical:** https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-credentials-api/  
**Provider:** Plinth US Grants Data — https://apis.io/providers/plinth-us-grants-data/  
**Base URL:** https://data.useplinth.com  
**Documentation:** https://data.useplinth.com/developers

Plinth US Grants Data Credentials API is one of 9 APIs that [Plinth US Grants Data](https://apis.io/providers/plinth-us-grants-data/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 5 JSON Schema definitions. Tagged areas include Credentials. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 5 JSON Schemas.

Getting a key, including the one an agent can mint for itself.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| GET | `/api/v1/agent-key` | How to mint a trial key by signing a request |
| POST | `/api/v1/agent-key` | Mint a trial API key — no account, no host, no signature |
| POST | `/api/v1/agent-key/challenge` | Take another challenge on a key you hold |
| GET | `/api/v1/agent-key/challenge` | How the challenge loop works |
| POST | `/api/v1/agent-key/answer` | Answer a challenge and unlock the key |

## Machine-readable artifacts (7)

- **OpenAPI** — https://artifacts.apis.io/plinth-us-grants-data/openapi/plinth-us-grants-data-credentials-api-openapi.yml
- **Documentation** — https://data.useplinth.com/developers
- **JSONSchema** — https://artifacts.apis.io/plinth-us-grants-data/json-schema/plinth-us-grants-data-trial-key-schema.json
- **JSONSchema** — https://artifacts.apis.io/plinth-us-grants-data/json-schema/plinth-us-grants-data-agent-key-request-schema.json
- **JSONSchema** — https://artifacts.apis.io/plinth-us-grants-data/json-schema/plinth-us-grants-data-challenge-issued-schema.json
- **JSONSchema** — https://artifacts.apis.io/plinth-us-grants-data/json-schema/plinth-us-grants-data-unlock-result-schema.json
- **JSONSchema** — https://artifacts.apis.io/plinth-us-grants-data/json-schema/plinth-us-grants-data-answer-request-schema.json

## Other Plinth US Grants Data APIs (8)

- [Plinth US Grants Data Analyze API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-analyze-api/)
- [Plinth US Grants Data Grants API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-grants-api/)
- [Plinth US Grants Data Organizations API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-organizations-api/)
- [Plinth US Grants Data Resolve API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-resolve-api/)
- [Plinth US Grants Data SQL API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-sql-api/)
- [Plinth US Grants Data Pulse API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-pulse-api/)
- [Plinth US Grants Data Batch API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-batch-api/)
- [Plinth US Grants Data Meta API](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-meta-api/)

## Tags

Credentials

---

Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/plinth-us-grants-data/plinth-us-grants-data-credentials-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/plinth-us-grants-data/.