> ## 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.

# Changelog

> What changed in the API.

**2026-11-12**

The public API, version 1.0.0

* Six routes under `/v1/`: list and read environments, create, read and finish a run, and read a run's tool addresses.
* One error envelope with six types.
* A tool gateway under each run's `tools_url`, on the real Gmail, Slack and Calendar shapes, with one MCP address per run.
* Four ways a run ends: `finish`, `idle_timeout`, `timeout` and `max_calls`.
* Scoring on fixed checks, plus at most one model-judged rubric.
* The first environment, `offsite-planning`, with one task, five checks and colleagues who answer in Slack.


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