Use API clients (Postman, cURL) and HTTP-compatible languages (Python, Java, JavaScript). Test all edge cases in the sandbox before production deployment.

Implement logic to regenerate tokens before each request (valid 5 minutes). Use the refresh token (valid 10 minutes) if available.

Service codes (e.g., BILLPAYMENT, DIRECT_DEBIT) are listed in Section 7.0. Include them in the token generation payload.