# Agentic Commerce > Build commerce flows for ChatGPT, including agentic checkout, delegated payment, and product feeds. Use this as a compact map of the commerce specs and guides. Each page has a Markdown twin at `/commerce/.md`. ## Documentation sets - [Combined commerce docs](https://developers.openai.com/commerce/llms-full.txt): Single-file Markdown export of commerce guides and specs. ## Guides - [Agentic commerce in production](https://developers.openai.com/commerce/guides/production.md): Checklist for launching in production and FAQs - [Best practices](https://developers.openai.com/commerce/guides/best-practices.md): Operational guidance for high-quality integrations. - [Get Started](https://developers.openai.com/commerce/guides/get-started.md): Start your ACP integration by sharing a structured product feed. - [Key concepts](https://developers.openai.com/commerce/guides/key-concepts.md): Understand the concepts of the Agentic Commerce Protocol ## Specs - [Agentic Checkout Spec](https://developers.openai.com/commerce/specs/checkout.md): Merchants integrate with OpenAI’s checkout flow by implementing the Agentic Checkout Spec - [Delegated Payment Spec](https://developers.openai.com/commerce/specs/payment.md): Payment Service Providers implement the Delegated Payment Spec to handle and secure Agentic Commerce transactions - [Feeds](https://developers.openai.com/commerce/specs/api/feeds.md): Create product feeds and retrieve feed metadata. - [File Upload](https://developers.openai.com/commerce/specs/file-upload/legacy.md): Provide a structured product feed so ChatGPT accurately indexes and displays your products with up-to-date price and availability. - [Onboarding](https://developers.openai.com/commerce/specs/onboarding.md): This content has been consolidated into the Get started guide. - [Overview](https://developers.openai.com/commerce/specs/api/overview.md): Create, retrieve, and upsert product feed data using an API. - [Overview](https://developers.openai.com/commerce/specs/file-upload/overview.md): Provide a structured product feed as file upload to an SFTP server. - [Products](https://developers.openai.com/commerce/specs/api/products.md): Retrieve and upsert products for a feed. - [Products](https://developers.openai.com/commerce/specs/file-upload/products.md): Submit product data for discovery in ChatGPT, with separate requirements for Ads and checkout. - [Promotions](https://developers.openai.com/commerce/specs/api/promotions.md): Retrieve and upsert promotions for a feed.