Where can I find information on API integration error handling?

Discover insights on key topics that enhance understanding and offer practical knowledge for everyday applications.

Common HTTP status codes and their meanings:

  • 200: Successful response.
  • 400: Invalid request parameters. Example: A PageSize outside of the allowed range.
  • 401: Unauthorized – authentication is missing or invalid.
  • 403: Forbidden – insufficient permissions.
  • 404: Not Found – the requested resource does not exist.
  • 500: Internal Server Error – an unexpected error occurred on the server.

Error responses are typically formatted according to the Problem Details specification:

{
  "type": "https://tools.ietf.org/html/rfc9110#section-15.5.1",
  "title": "One or more validation errors occurred.",
  "status": 400,
  "detail": "PageSize must be between 1 and 100.",
  "instance": "/us/v1/corporates?pageSize=1000",
  "errors": { "PageSize": [ "PageSize must be between 1 and 100." ] },
  "correlationId": "95b82b33-2f46-43f0-8bd3-0c4ffe06d73d"
}


  1. Environments & Base URLs
  2. Authentication
  3. Endpoints:
    1. Corporate Endpoints
    2. Entity Endpoints
    3. Account Endpoints
    4. Card Endpoints
  4. Response Envelopes
  5. Error Handling
  6. Best Practice & Tips
  7. Example Workflow
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