> ## 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.

# ACP and ChatGPT

> Prepare Darwin Supply catalog and checkout projections for ACP-compatible commerce surfaces.

<Warning>
  ACP distribution is preview. Do not promise ChatGPT availability until Darwin has verified the production feed and checkout behavior and the provider has approved the seller.
</Warning>

Darwin Supply separates ACP readiness into two independently verifiable stages.

## Product discovery

Darwin validates the eligible catalog projection, including required schema, supported listing types, images and URLs, price and availability freshness, and policy eligibility. Provider submission and approval remain external states.

## Agentic checkout

Where supported, Darwin maps the checkout lifecycle to canonical deals, transactions, fulfillment, and outcomes. Create, update, complete, cancel, refund, and return behavior must remain replay-safe and reconcile to the Darwin order timeline.

## Seller responsibilities

* Keep catalog, pricing, availability, and public URLs accurate.
* Fulfill according to the accepted deal.
* Keep return, cancellation, and support policies current.
* Never treat a Darwin-side readiness check as provider approval.

Return to [Distribution channels](/supply/channels) for the full readiness model.