# What is kestrel.markets (/docs)



**kestrel.markets** is the managed platform for [Kestrel](https://www.npmjs.com/package/kestrel.markets),
the open-source language and runtime for agentic trading — published on npm as
`kestrel.markets`, MIT-licensed, with the full source, the examples, and the
language ADRs shipped in the package. Kestrel gives you four
kinds of statement — **View**, **Wake**, **Plan**, **Grade**. The platform runs
them for you: licensed data, authority, deterministic execution, and signed
evidence. Your agent brings the intelligence; the platform never hosts it.

## Start with a free sim [#start-with-a-free-sim]

No signup, no API key, no payment before first value — mint an anonymous trial
capability and run a real deterministic sim:

```bash
curl -sS -X POST https://api.kestrel.markets/capabilities/trial
```

The trial capability is anonymous and rate-limited, but the execution path is the
real deterministic one — fail-closed parsing, certified outputs. The
[Quickstart](/docs/quickstart) takes you from this call to a certified, shareable
proof URL in four requests.

## Where to go next [#where-to-go-next]

- [Quickstart](/docs/quickstart): Zero → capability → catalog → free sim → certified proof URL in four requests.
- [Install the MCP server](/docs/mcp): Connect an agent over MCP in one command, anonymous trial by default.
- [Concepts](/docs/concepts): The four faces, the four statements, authority, and evidence.
- [Activation](/docs/activation): Proof before account: trial → 402 Offer → settle → resume.
- [Platform](/docs/platform): Pricing, architecture, and the milestone roadmap.

> **Illustrative only**
>
> Instruments and numbers in these docs are generic and illustrative. Nothing here
> is trading advice.