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

# Separate sandbox and live

> Select the host, key, and capabilities from the same environment.

Each key belongs to one merchant and environment. The request host and key must represent the same environment.

## Compare environments

| Property   | Sandbox                         | Live                            |
| ---------- | ------------------------------- | ------------------------------- |
| Base URL   | `https://api.test.simplepay.mx` | `https://api.simplepay.mx`      |
| Real money | No                              | Yes                             |
| Data       | Synthetic                       | Real                            |
| Activation | Active test environment         | Complete readiness and approval |

## Create multiple keys

You can create multiple keys per environment. Separate integrations, jobs, and services to reduce rotation impact.

Each key has:

* A stable ID
* An immutable environment
* Explicit scopes
* A lifecycle status
* A secret value returned once
* An obfuscated dashboard reference

<Warning>
  Changing the URL does not convert a sandbox key into a live key. Create and
  store a separate live credential.
</Warning>