Sign in to your sandbox
Use the work email and password from your Vega signup.
Need an account? Start on the Vega Payments website.
Vega merchant workspace
Build safely. Go live deliberately.
Test your integration with sandbox credentials, then complete paid onboarding and KYB when you are ready to move real money.
1 Sandbox
2 Paid
3 KYB
4 Live
Verify your work email
Use the token from your verification email. Your sandbox key is shown once after verification.
Signed in as
Merchant account
Free
Email verified
Credentials
Test mode
Sandbox API keys
Save this key now
For security, Vega will not show it again.
Create a sandbox payment
Your sandbox trial lasts 30 days and includes up to five incomplete payment attempts.
Make your first API call
Every sandbox request uses the same API reference and a vega_test_… key.
curl https://pay-server-fnnnchfena-uc.a.run.app/api/v1/merchant-payments/initiate \
-H "X-API-Key: vega_test_…" \
-H "Content-Type: application/json" \
-d '{"amount":25,"currency":"USD"}'Complete KYB
Live credentials stay locked until your paid plan and business checks are complete.
Verify your website
Add this token as a DNS TXT record or a vega-site-verification meta tag, then verify.
Issue your live key
Available only when every activation check is complete. Live keys can move real money.
Save this live key now
It will not be shown again.