Agentic Commerce Protocol (ACP)

Fact sheet

Type

Protocol

Operator

OpenAI, Stripe and Meta (lead maintainers)

Homepage

agenticcommerce.dev

Versions

2025-09-29, 2025-12-12, 2026-01-16, 2026-01-30, 2026-04-17

Licence

Apache-2.0

Matrix reach

3 live, 2 pilot, 7 announced, 2 not supported, 13 with no statement found

Readiness for merchants

Seven rows, each read from a primary source on 4 Nov 2026. The method page defines every row.

The row in full: every column

What ACP does not do

• Does not make ChatGPT a checkout surface today: OpenAI moved purchases back to merchant sites on 24 Mar 2026.
• Does not define dispute or chargeback handling; those stay with the card network and the merchant.
• Does not identify or authenticate the agent at the HTTP layer; that is Web Bot Auth, TAP or Agent Pay territory.

Sourced facts

• Stripe and OpenAI released ACP on 29 Sep 2025 as an open, Apache 2.0 licensed standard, alongside Instant Checkout in ChatGPT. stripe.com, read 4 Nov 2026.
• The GitHub MAINTAINERS file lists OpenAI, Stripe and Meta as lead maintainers; Meta was added by the commit "ADMIN: Add Meta as TSC member (#236)" on 24 Apr 2026. github.com, read 4 Nov 2026.
• The README still carries the status badge "Beta" and says the specification is maintained by OpenAI and Stripe, so the repository text and the MAINTAINERS file disagree on the maintainer list. github.com, read 4 Nov 2026.
• ACP uses date-based versions: 2025-09-29 (initial), 2025-12-12 (fulfillment), 2026-01-16 (capability negotiation), 2026-01-30 (extensions, discounts, payment handlers) and 2026-04-17 (cart, feed, orders, authentication and MCP). github.com, read 4 Nov 2026.
• Version 2026-04-17 added a Feed API where merchants push catalog data to agent-hosted endpoints (POST /feeds, PATCH /feeds/{id}/products), and deprecated 2026-01-30. github.com, read 4 Nov 2026.
• The ACP site says businesses remain merchant of record and names Stripe as the first compatible PSP through its Shared Payment Token. agenticcommerce.dev, read 4 Nov 2026.
• The README says ACP lets an AI agent embed commerce "without being the merchant of record". github.com, read 4 Nov 2026.
• OpenAI wrote on 24 Mar 2026 that Instant Checkout "did not offer the level of flexibility that we aspire to provide" and moved purchases to merchant checkouts while expanding ACP for product feeds and promotions. openai.com, read 4 Nov 2026.
• OpenAI's merchant page says it is "moving away from a standalone Instant Checkout experience" and charges no fee on purchases that start in ChatGPT and finish on the merchant site. chatgpt.com, read 4 Nov 2026.
• Trade press (PYMNTS) reported a 4 percent OpenAI fee on Shopify merchant sales completed inside ChatGPT checkout while Instant Checkout ran; OpenAI's own launch post said only "a small fee". pymnts.com, read 4 Nov 2026.Trade press
• Visa Intelligent Commerce Connect lists ACP among the four protocols it accepts for agent-initiated payments, in pilot from April 2026. visa.co.uk, read 4 Nov 2026.

In the vendors section

• Stripe, processor profile
• OpenAI (ChatGPT shopping), agent surface profile
• Instacart, retailer profile

Compare and alternatives

• ACP vs UCP
• ACP vs AP2