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The sandbox helps you explore Lerian’s APIs in a safe and predictable environment. It mirrors production behavior while keeping your real data untouched. Every request you send from our documentation is routed through this environment, giving you a complete view of how each endpoint behaves. The sandbox fully powers the Try It experience. When you test an endpoint, the response you see comes from this environment. If you haven’t seen how the Try It feature works yet, check out the Using the Try It feature page.
The sandbox is only available inside the documentation. You cannot access it directly through external tools.

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Base URLs

These are the URLs the documentation uses behind the scenes when you test an endpoint:
ServiceSandbox Base URL
Midazhttps://onboarding.sandbox.lerian.net (Onboarding APIs) https://transaction.sandbox.lerian.net (Transactions APIs)
Access Managerhttps://auth.sandbox.lerian.net (Auth APIs) https://identity.sandbox.lerian.net (Identity APIs)
CRMhttps://crm.sandbox.lerian.net
Fees Enginehttps://fees.sandbox.lerian.net
Reporterhttps://smart-templates.sandbox.lerian.net
All examples and test boxes in the docs already use these URLs.

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What you can do

The sandbox lets you:
  • Run live requests from the documentation
  • Inspect request and response structures
  • Understand authentication headers and data formats
  • Learn how each API behaves without setting up your own environment
Click Try It on any endpoint to run a live request and check how the API responds.

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Limitations

The sandbox is designed for exploration. Some restrictions are intentional:
  • It only works inside the documentation
  • Data resets frequently
  • Some endpoints use fixed or sample responses
  • Authentication rules may be simplified depending on the API
For full integration tests, use your own environment or reach out to our team to request a dedicated development space.