Resolving 401 Unauthorized error with BoldSign API

When a user tries to access the BoldSign API endpoint using a generated API key, they may encounter a “401 Unauthorized” error.

Cause

The error often occurs when there is a mismatch between the user’s registered data center and the data center endpoint to which the API requests are being sent. For instance, if a user is registered in the European data center but sends requests to the US data center, they will encounter this issue.

Solution

Update API Endpoint URL: If you are registered in the European data center, ensure that your API requests are directed to the correct endpoint.

Refer to documentation

For detailed information and specific guidance, refer to BoldSign’s API documentation, particularly the section on Versioning - API Documentation - BoldSign.

Additional steps

• Verify that the API key you are using is valid, has not been removed, and has not expired.
• Check that the OAuth access token has not expired; its usual expiration timeline is one hour.
• If the issue persists after making these changes, contact BoldSign’s support team for further assistance.