Sandbox and go-live

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Build in sandbox

1. Sign up at https://dashboard.onstacks.io. Sandbox is available immediately.
2. Create a sandbox API key under Developer. The full key is shown once; store it server-side.
3. Register a webhook with a publicly reachable HTTPS URL and confirm the test event arrives.
4. Build against environment=sandbox. Product pages list the test data to use.

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Go live

1. Complete business verification in the dashboard. Live is gated until it is approved, and the dashboard shows a Not yet verified tag until then.
2. Create a live API key and a live webhook. Sandbox keys and webhooks do not carry over.
3. Change environment=sandbox to environment=live. Nothing else in your integration changes.