# Purchase Solver License

Once [Truebit on Ethereum has started](/v1docs/getting-started/start-truebit-on-ethereum.md):

**1. Check the license price.**

```bash
license price
```

<mark style="color:purple;">**OUTPUT**</mark>

```bash
info: Solver license costs 0.4 ETH.
```

**Buy a license for the "Solver" account**

```bash
license purchase -a 0
```

<mark style="color:purple;">**OUTPUT**</mark>

{% code overflow="wrap" %}

```bash
info: Purchase complete.  Address 0x2F25f5DF360305977Fef8F6730883a787785B802 has successfully registered as Solver.
```

{% endcode %}


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.truebit.io/v1docs/getting-started/purchase-solver-license.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.