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Documentation Index

Fetch the complete documentation index at: https://lyelpay.mintlify.app/llms.txt

Use this file to discover all available pages before exploring further.

The sandbox environment is coming soon. We’re working on it and will notify all developers when it’s available.

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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

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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.

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Get notified

Contact support@lyelpay.com to be added to the sandbox early access list and receive test credentials ahead of the public release.