How to Find SumUp API Credentials and Merchant Code

To connect SumUp to your restaurant dashboard, you may need your Merchant Code, Public API Key, and Secret API Key. Follow the steps below to locate these details.

1. Find Your Merchant Code

1. Log in to your SumUp account.
2. Open your profile or account settings.
3. Look for your merchant or business account details.
4. Locate and copy your Merchant Code, if displayed.

If you cannot find the Merchant Code in your account settings, check your SumUp developer or integration documentation, or contact SumUp Support to confirm where it is available for your account.

2. Find Your API Keys

1. Open the SumUp Developer Dashboard.
2. Navigate to For Developers → Toolkit → API Keys, if this option is available in your dashboard.
3. Review your existing API keys or select Create to generate a new key.
4. Copy the Public API Key and Secret API Key when they are displayed.
5. Store the secret key securely, as it may not be available for retrieval later.

3. Enter the Credentials in Your Restaurant Dashboard

1. Log in to your restaurant dashboard.
2. Go to Settings → Payments → Payment options.
3. Open Manage gateways and select SumUp.
4. Enter the required details in their matching fields:
5. • Merchant Code: Your SumUp merchant identifier.
   • Public API Key: Your public API key, if requested.
   • Secret API Key: Your secret API key, if requested.
5. Review the details and click Save.

Only enter the credentials requested by the SumUp gateway configuration in your dashboard.

4. Important Notes

• Keep your Secret API Key confidential.
• Make sure the Merchant Code belongs to the correct SumUp account.
• If you regenerate your API keys, update the credentials in your restaurant dashboard.
• Test the integration before accepting live payments.

Official reference: SumUp Developer Documentation

Updated on: 21/10/2026