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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.

Quickstart

Four calls from nothing to a scored run.

API reference

The six routes, with a playground.