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

# testworld

> A simulated workplace for AI agents.

testworld gives an agent a workplace to act in: Gmail, Slack and Calendar seeded with realistic data. Nothing the agent does reaches a real system. Every tool call is recorded, and when the run ends you get the trace and an evaluation of the end state.

The hosted API opens with early access. The address and the key come with the invitation. In these docs `$TESTWORLD_URL` is the address and `$TESTWORLD_KEY` is the key.

> [card] [Quickstart](https://docs.testworld.dev/quickstart.md)
>
> Four calls from nothing to a scored run.

> [card] [API reference](https://docs.testworld.dev/api-reference/environments/list-environments.md)
>
> The six routes, with a playground.


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