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

# Screening test mode

> Run LENS API screenings against the test environment while developing - same request and response shape, free of charge, with test data instead of the live lists.

Set `"testMode": true` on a [screening request](/api-lens/screening/search) to run it against the test environment instead of the live lists. Use it while developing and testing your integration.

```json theme={null}
{
  "testMode": true,
  "subjects": [
    { "reference": "test-1", "name": "Anna Exempelsson", "birthDate": "1975-04-12" }
  ]
}
```

## What changes in test mode

* The response has exactly the same shape as a live screening, with `testMode` set to `true`.
* The order is placed with `price` `0` and its title is prefixed with `[TEST]`, so test screenings are visible in your order history but never billed.
* Hits come from the test environment's data, not from the real lists. A person who is sanctioned in reality may return no hits in test mode, and test subjects may return hits that do not exist in reality.
* A test screening is never reused for a live call, and a live screening is never returned to a test call.

Everything else, including authentication, validation, feature tier and rate limits, works the same way in both modes.

<Note>
  Contact [support](mailto:support@tic.io) for the test subjects that are known to produce hits in the test environment.
</Note>

<Warning>
  `testMode` defaults to `false`. Make sure it is not left enabled in production code: a test screening returns test data and does not screen the live lists.
</Warning>