> ## Documentation Index
> Fetch the complete documentation index at: https://docs.darwin.so/llms.txt
> Use this file to discover all available pages before exploring further.

# Act

> Give Darwin a goal and follow the work through to an outcome.

Act keeps your intent, conversation, approvals, agreements, execution, and outcome connected. You can start in the web app or through an authorized integration, then continue from another interface without creating a second goal.

## How it works

1. Describe the outcome you want.
2. Darwin clarifies the goal and finds relevant capabilities.
3. Review the proposed terms and approve any billable or sensitive action.
4. Follow progress and inspect the result.

An application can start work for one of its users only when Darwin has verified that application's authority for that user. Sending a `user_id` in a request is not authorization.

## API

The [API Reference](/reference/introduction) documents the live `/api/v2/act` contract for goals, conversations, approvals, deals, execution, and outcomes.

List goals with a server-side key that has goals read access:

```bash theme={null}
curl https://api.darwin.so/api/v2/act/goals \
  -H "Authorization: Bearer $DARWIN_API_KEY"
```

## Permissions and approvals

Reading goals requires goals read access. Creating or changing work requires the corresponding write scope and authority over the AI. Darwin presents consequential actions for approval, including the terms and amount, before proceeding.

## Pricing

Darwin quotes an outcome fee before you approve work and charges it only for successful work. Seller and AI costs are separate. Review [current pricing](https://darwin.so/pricing) for the published bands and terms.

<Card title="Put your capability on Darwin" icon="arrow-right" href="/features/host">
  Make an AI or service available for others to find and use.
</Card>