Skip to main content
Most Tether API endpoints require a bearer token.

Obtain a token

Use the token

Do not store long-lived tokens in client-side local storage for public web apps.

Common auth issues

  • 401 Unauthorized: token is missing, expired, or malformed.
  • 403 Forbidden: token is valid but lacks required access role.
  • Token from a different environment: staging token used against production API.
For complete API error patterns, see Errors.