The Agentic Commerce Protocol (ACP) is an interaction model and open standard for connecting buyers, their AI agents, and businesses to complete purchases seamlessly.
The specification is maintained by OpenAI and Stripe and is currently in draft.
- For businesses Reach more customers. Sell to high-intent buyers by making your products and services available for purchase through AI agents—all while using your existing commerce infrastructure.
- For AI Agents - Embed commerce into your application. Let your users discover and transact directly with businesses in your application, without being the merchant of record.
- For payment providers - Grow your volume. Process agentic transactions by passing secure payment tokens between buyers and businesses through AI agents.
Learn more at agenticcommerce.dev.
<repo-root>/
├── rfcs/
│ └── rfc.*.md
│
├── spec/
│ ├── openapi/
│ │ └── openapi.*.yaml
│ │
│ └── json-schema/
│ └── schema.*.json
│
├── examples/
│ └── examples.*.json
│
├── changelog/
│ └── *.md
│
├── MAINTAINERS.md
├── CONTRIBUTING.md
├── LICENSE
└── README.md
| Spec Type | Latest Version | Description |
|---|---|---|
| RFC (Markdown) | rfcs/ | Human-readable design doc with rationale, flows, and rollout plan. |
| OpenAPI (YAML) | spec/openapi/ | Machine-readable HTTP API spec for integrating checkout endpoints. |
| JSON Schema | spec/json-schema/ | Data models for payloads, events, and reusable objects. |
| Examples | examples/ | Sample requests, responses. |
| Changelog | changelog/ | API version history and breaking changes. |
ACP has been first implemented by both OpenAI and Stripe, providing production-ready reference implementations for merchants and developers:
To start building with ACP:
- Review this repo's OpenAPI specs and JSON Schemas.
- Choose a reference implementation:
- Use OpenAI's implementation to integrate with ChatGPT and other AI agent surfaces.
- Use Stripe's implementation to leverage its payment and merchant tooling.
- Follow the guides provided in the linked documentation.
- Test using the examples provided in this repo.
| Area | Resource |
|---|---|
| Checkout API Spec | spec/openapi/openapi.agentic_checkout.yaml |
| Delegate Payment Spec | spec/openapi/openapi.delegate_payment.yaml |
We welcome contributions! See CONTRIBUTING.md for:
- Branching model
- Pull request guidelines
- Spec versioning and review process
All changes must include:
- Updated OpenAPI / JSON Schemas
- New or updated examples
- Changelog entry in
changelog/unreleased.md
Licensed under the Apache 2.0 License.