GET /v1/whoami. Account installation, mandates, payments, and receipts are not yet a supported integration.
Make your first request
Use a test key from your server to check which project and environment it belongs to.
Understand the boundary
Learn why a developer credential and an owner’s payment authority are separate.
Check availability
See what is implemented locally and what still needs a supported release.
Explore the API contract
Read the versioned OpenAPI reference used by the current local implementation.
A useful place to start
If you are evaluating GOL for an application, read current availability first. If you want to try the implemented control plane, create a local test project, then make your first request. The examples here usehttp://127.0.0.1:4100 because they describe a local platform instance. A passing local request does not imply a hosted GOL API or payment service is live.