Developers
Integration guide
A practical path from Free Sandbox registration to API and webhook integration — without claiming live acquiring.
Step 1
Create a Free Sandbox account
Register at /register?plan=free_sandbox. This provisions an Owner membership and Free Sandbox subscription — never Super Admin.
Step 2
Complete onboarding
Set branding, enable Fake or Stripe Test, and create your first payment link from the merchant app checklist.
Step 3
Run a sandbox checkout
Open the public pay URL. Confirm status under Payments. Redirects are not settlement proof — rely on retrieve/webhooks.
Step 4
Add API keys and webhooks
Issue a merchant API key and configure outbound webhook endpoints when you are ready to integrate servers.
Step 5
Read signed-in documentation
Open /app/docs/quick-start, /app/docs/api, and /app/docs/webhooks after authentication for reference material.
Need product context first? Review Payment Links.
Ready to integrate?
Start Free Sandbox, then open merchant docs after sign-in.