## Base URL

Production

```
https://api.harnessrouter.ai
```

## Contract source

Use the endpoints documented here and in `AGENTS.md` for implementation. Model and harness discovery require a Workspace API key.

**Open standard**

Every request you build against api.harnessrouter.ai uses /v1 paths from the endpoint summary in the Unified Harness Protocol's specification overview — the open contract HarnessRouter serves at this host. See [the UHP specification overview](https://unifiedharnessprotocol.org/spec).

[Create API Key →](https://app.harnessrouter.ai/quickstart?ref=docs-create-api-key)

Ready to run this against a live workspace? Keys take under a minute.