The unique ID of the user in your system. This is the only identifier needed
to reference the user. Maximum 1-128 alphanumeric characters. May include
these special characters: - _ .
The access token for the user. Must be consistent throughout the user’s
lifecycle. No pre-registration is required—users are valid after the first
provider integration.
On successful authentication, the API will return an access token in the response. Store this token securely and include it in the Authorization header for all subsequent API calls:Authorization: Bearer <access_token>