> ## Documentation Index
> Fetch the complete documentation index at: https://paytectechnologies.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Sandbox

> Build and test against the sandbox before you are promoted to production.

Every integration starts in the sandbox. It exposes the same contract as
production so you can build and test the full flow before going live.

<Info>
  **Sandbox base URL:** `https://api.dev.zeam.paytec.io/v1`
</Info>

## What the sandbox is for

* Verifying authentication: issuing a token and calling protected endpoints.
* Exercising the transaction flow end to end: connectors, quotes, intents, and
  payments.
* Testing your [webhook](/webhooks/overview) handling before production.
* Validating your error handling against the
  [RFC 7807 contract](/platform/errors).

## Safe testing

* Use **sandbox credentials only**. They are separate from production and do not
  carry over. See [API keys](/authentication/api-keys).
* Treat the sandbox as a shared, non-production environment: do not send real
  personal data or anything you could not put in a test system.
* Keep your sandbox application secret and client secret out of client-side code,
  exactly as you would in production.

## Expected limitations

The sandbox is for integration testing, not load testing or production traffic.

## Moving to production

When your integration is ready, you are promoted after validation and
operational readiness. See [Production promotion](/access/production-promotion).