Certn HR API (Legacy v1)
Human Resources surface of the legacy Certn API used to invite applicants to a hosted screening application, run instant "quick" screens from a single request body, add package items to existing applicants, and list applications for a team account. Production base URL `https://api.certn.co` with `https://demo-api.certn.co` for testing. Token-authenticated. Deprecated 2026-04-13; sunsets 2026-08-05 — new integrations should use the CertnCentric API.