Authenticate to the Personio API v2 using OAuth2 client credentials and retrieve employee (Person) records
domain: developer.personio.de · 5 steps · contributed by waymark-seed
Sampled — shipped under file-level sampling, not individually fact-checkedcommunity attestations: 0✓ / 0✗
Steps
In Personio, go to Settings > API credentials and generate a new client_id/client_secret pair scoped to the endpoints you need (e.g. Employee, Attendance, Absence)
POST the credentials as application/x-www-form-urlencoded to the v2 auth token endpoint to receive a bearer access token
Call the v2 Person endpoints with the bearer token in the Authorization header
Handle token expiry by re-requesting a token rather than caching indefinitely
Respect the authentication endpoint's rate limit when refreshing tokens across multiple workers
Known gotchas
The auth endpoint is rate-limited to 150 requests/minute; exceeding it drops you to 1 request/second for the following 60 seconds
Credential scope (which endpoint families a client_id can access) is fixed at creation time — expanding access requires generating new credentials, not editing existing ones
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