# Fees

The payment instructions include three amount fields:

```json
{
  "amounts": {
    "due": "100500000000000000000",
    "settlement": "100000000000000000000",
    "fee": "500000000000000000"
  }
}
```

## Meaning

* `due`: amount the customer should send.
* `settlement`: amount the merchant receives.
* `fee`: Artum service fee.

In the current mock flow:

```
due = settlement + fee
```

The customer pays `due`. The merchant receives `settlement`. Artum keeps `fee`.

## Network Gas

Network gas is separate from Artum service fee.

The customer's wallet pays gas to submit the token transfer. That gas is not included in `instructions.amounts.fee`.

Any Artum-side settlement transaction gas is not represented as `fee` in the current mock response.


---

# 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.artum.app/concepts/fees.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.