Issue Test ID & Key

First Step of Integration,
Get Your Test ID & Key

To request payments in the Sandbox environment,
you need a unique Merchant ID (MID) and a Secret Key.

Issue Test ID & Key

🔑 Key Credentials

These are the core credentials used in authentication headers for API calls. Please prevent them from being exposed.

Type	Name	Usage	Note
Merchant ID (MID)	Merchant ID	Unique ID identifying the merchant	Used in mallId parameter
Secret Key	Secret Key	Secret key for generating signatures (HMAC)	NEVER EXPOSE

📝 Issuance Process

1. Click the 'Issue Test ID & Key' button above to go to the issuance page.
2. Accurately enter the required business information such as business registration number and representative name.
3. Click the 'Issue Test ID' button at the bottom to receive your ID and Key immediately.

Security Warning

• The Secret Key must be used ONLY for server-to-server communication.
• NEVER include the Secret Key in frontend source code (e.g., JavaScript).
• If you suspect the key has been compromised, you must [Re-issue] it immediately to invalidate the old key.