Introduction
What the Capstone API does and which part of it you need.
Capstone runs realistic workplace simulations that show how a candidate actually works. A candidate works alongside AI colleagues on real deliverables, and the run is graded on the work they produce.
The API has three surfaces. Pick the one that matches who is calling.
| Surface | Who calls it | Credential | Status |
|---|---|---|---|
Company API, /v1/api/* | An employer's own systems | Bearer API key | Live, enabled per company |
Greenhouse partner, /v1/ats/greenhouse/* | Greenhouse, for a shared customer | HTTP Basic partner key | Partner beta |
Ashby partner, /v1/ats/ashby/* | Ashby, for a shared customer | HTTP Basic partner key | Partner beta |
| Open endpoints | Anyone | None | Live |
Base URL
https://api.usecapstone.com/v1Every request is HTTPS and versioned in the path. Requests and responses are JSON.