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

# Midaz fee asset contract

> Fee requests now require an explicit asset instead of a default currency fallback.

<Badge stroke icon="calendar-days" iconType="regular">August 25, 2026</Badge> <Badge stroke icon="file-code" iconType="regular">Documentation correction</Badge> <Badge color="red" size="lg" stroke icon="triangle-exclamation" iconType="regular">Action required</Badge>

## Affects

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Teams that configure fees in Midaz or submit fee requests.

## What changed

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Midaz does not use `DEFAULT_CURRENCY` as a fee fallback. Every fee request must provide a non-empty `send.asset`; an empty value is rejected.

This corrects documentation of the current contract. It does not announce a runtime release.

## Impact

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**Classification: Action required.** Deployments and clients that rely on `DEFAULT_CURRENCY` or omit `send.asset` cannot rely on the former behavior.

## What you need to do

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<Steps>
  <Step>Remove `DEFAULT_CURRENCY` from fee deployment templates and runbooks.</Step>
  <Step>Ensure every fee request supplies a valid, non-empty `send.asset`.</Step>
  <Step>Add request validation and tests for missing assets before the next deployment.</Step>
</Steps>

### Deadline

Update clients and deployment configuration before the next fee request.