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

# Pricing Models

Pricing is configured in `charm.yaml` and displayed on the Store listing.

## Basic Shape

```yaml theme={"theme":{"light":"min-light","dark":"min-dark"}}
pricing:
  model: "free"
  amount: 0
```

## Pricing Models

| Model          | Description                                              |
| -------------- | -------------------------------------------------------- |
| `free`         | No charge to install or run beyond platform usage rules. |
| `one_time`     | One purchase grants access.                              |
| `subscription` | Recurring access, usually monthly or annual.             |

## Subscription Example

```yaml theme={"theme":{"light":"min-light","dark":"min-dark"}}
pricing:
  model: "subscription"
  amount: 9.99
  billing_period: "monthly"
  trial:
    enabled: true
    days: 7
```

## Choosing a Price

Consider:

* how often the agent is used,
* whether it depends on costly tools,
* the value of the output,
* support expectations,
* whether the agent is experimental or production-ready.

## Notes

Pricing metadata should match the actual value and reliability of the agent. Misleading pricing or unclear usage expectations can lead to poor user trust.