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Resolves an access token to the user it was issued to. This is the quickest way to confirm a token works and to see exactly what it is allowed to do.

Endpoint

Authentication

This endpoint requires an OAuth access token. Send it as a bearer token:
Required scope: users:read

Request Example

Response

Success Response

Status Code: 200 OK

Response Fields

Error Responses

400 Bad Request

Returned when the access token has no user behind it. client_credentials tokens act as the admin who created the application, so this applies only to tokens issued before application creators were recorded.

401 Unauthorized

Returned when the access token is missing, unknown, revoked, or expired, or when an X-API-Key was sent instead of a bearer token. See OAuth error responses.

403 Forbidden

Returned when the token does not carry the required scope.

404 Not Found

Returned when the token’s user no longer exists in the organization.

429 Too Many Requests

Returned when your organization exceeds its per-minute request limit.

Notes

This endpoint exists only on the OAuth surface. There is no API-key equivalent, because an API key is not tied to a specific end user.
Read scopes from the response rather than tracking what you requested. It reflects what the user actually approved, which may be narrower.
Cache the result for the life of a session. The values change only if the token is reissued.

Use Cases

  • Token verification - Confirm a freshly issued token works before making real calls
  • Capability discovery - Enable or hide features in your UI based on the granted scopes
  • User identification - Display who your integration is acting as
  • Debugging permissions - Explain a 403 by checking the token’s user and scopes