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

# Sandbox

> Test your integration before going live.

<Note>
  The sandbox environment is **coming soon**. We're working on it and will notify all developers when it's available.
</Note>

## What to expect

When the sandbox launches, you'll be able to:

* Get dedicated **test API keys** from your dashboard (prefixed with `test_`)
* Trigger payments, transfers, and webhooks without real money moving
* Simulate all payment statuses: `PENDING`, `COMPLETED`, `FAILED`, `EXPIRED`
* Test OTP flows with a fixed test code (no real SMS sent)
* Replay webhook events from the dashboard

## Preparing now

Even without a sandbox, you can prepare your integration:

1. **Build against the real API types** — all TypeScript types in `@lyel/lyel-pay-node` are production-ready and won't change.
2. **Mock the SDK** in your test suite using the interfaces from `@lyelpay/errors` for error codes.
3. **Set up your webhook endpoint** — the signature validation logic works the same in test and production.

## Get notified

Contact **[support@lyelpay.com](mailto:support@lyelpay.com)** to be added to the sandbox early access list and receive test credentials ahead of the public release.