Agent Ready CheckoutEdition . The pay layer for agents.

Matrix edition of 4 November 2026

In short

Edition 1 of the protocol support matrix, read 4 Nov 2026: 324 cells, of which 35 are live or pilot and 57 announced. This page holds the changelog and three charts: stated columns per protocol, status by column group, and dated events per month since September 2025. The matrix is re-read monthly and moves weekly.

This edition

Edition summary
ItemValue
Edition date4 Nov 2026
Protocols and programs12
Columns27 (10 processors, 6 platforms, 5 retailers, 6 agent surfaces)
Cells324
Live23
Pilot12
Announced57
Not supported3
No statement found229

Changelog

The first line is this edition. The lines below are the dated moves recorded since August 2026 that bear on cells in the matrix, newest first.

Chart: stated cells per protocol

  • live
  • pilot
  • announced
  • not supported or no statement found
Columns with a stated status, per protocolHorizontal bars, one per protocol, split into live, pilot, announced and not supported cells out of 27 columns. The number at the end of each bar counts the columns with a stated status.ACPACP: 3 liveACP: 2 pilotACP: 7 announcedACP: 2 not supported14UCPUCP: 10 liveUCP: 4 pilotUCP: 6 announcedUCP: 1 not supported21AP2AP2: 1 pilotAP2: 10 announced11Visa TAPVisa TAP: 1 pilotVisa TAP: 5 announced6Visa ICVisa IC: 1 liveVisa IC: 1 pilotVisa IC: 6 announced8Mastercard Agent PayMastercard Agent Pay: 1 liveMastercard Agent Pay: 1 pilotMastercard Agent Pay: 8 announced10Agent Pay for MachinesAgent Pay for Machines: 1 pilotAgent Pay for Machines: 7 announced8Amex ACEAmex ACE: 6 announced6x402x402: 3 livex402: 1 announced4MPPMPP: 2 live2Link for agentsLink for agents: 3 liveLink for agents: 1 announced4Verifiable IntentVerifiable Intent: 1 pilot1
Stated cells per protocol out of 27 columns. Numbers at the bar end count cells with a stated status.
Cells per protocol across 27 columns, read 4 Nov 2026
ProtocolLivePilotAnnouncedNot supportedNo statement found
ACP327213
UCP104616
AP20110016
Visa TAP015021
Visa IC116019
Mastercard Agent Pay118017
Agent Pay for Machines017019
Amex ACE006021
x402301023
MPP200025
Link for agents301023
Verifiable Intent010026

Chart: status by column group

  • live
  • pilot
  • announced
  • not supported or no statement found
Share of cells by status, per column groupOne bar per column group. Each bar is the full set of cells in that group, split by status; the number at the end is the cell count.ProcessorsProcessors: 15 liveProcessors: 10 pilotProcessors: 31 announced120 cellsPlatformsPlatforms: 3 livePlatforms: 2 pilotPlatforms: 9 announced72 cellsRetailersRetailers: 2 liveRetailers: 5 announcedRetailers: 2 not supported60 cellsAgent surfacesAgent surfaces: 3 liveAgent surfaces: 12 announcedAgent surfaces: 1 not supported72 cells
Every cell in each column group, split by status.
Cells per column group by status
Column groupCellsLivePilotAnnouncedNot supportedNo statement found
Processors120151031064
Platforms72329058
Retailers60205251
Agent surfaces723012156

Chart: dated events per month

Dated events per month, September 2025 to November 2026One column per month counting the dated events in the history guide. The table below lists the same counts.0246Sept 25: 2 ink2Sept 25Oct 25: 3 ink3Oct 25Nov 25: 1 ink1Nov 25Dec 25: 1 ink1Dec 25Jan 26: 2 ink2Jan 26Feb 26Mar 26: 3 ink3Mar 26Apr 26: 7 ink7Apr 26May 26Jun 26: 3 ink3Jun 26Jul 26: 2 ink2Jul 26Aug 26: 2 ink2Aug 26Sept 26: 4 ink4Sept 26Oct 26: 4 ink4Oct 26Nov 26
Dated events per month in the history guide.
Events per month in the history guide
MonthDated events
September 20252
October 20253
November 20251
December 20251
January 20262
February 20260
March 20263
April 20267
May 20260
June 20263
July 20262
August 20262
September 20264
October 20264
November 20260
All months34

Cite this edition

Cite this: Agent Ready Checkout. Protocol Support Matrix, edition 4 Nov 2026. Edition of 4 Nov 2026. https://agentreadycheckout.com/matrix/2026-11-04

Download the cells as CSV or JSON.

Sources

  1. ucp.dev/, read 4 Nov 2026
  2. cloud.google.com/blog/products/ai-machine-learning/announcing-agents-to-payments-ap2-protocol, read 4 Nov 2026
  3. Stripe: Developing an open standard for agentic commerce, read 4 Nov 2026
  4. Visa Introduces Trusted Agent Protocol, read 4 Nov 2026
  5. Cloudflare: Secure agentic commerce, read 4 Nov 2026
  6. mastercard.com/us/en/news-and-trends/press/2025/october/Mastercard-and-PayPal-join-forces.html, read 4 Nov 2026
  7. PayPal and Perplexity Launch Instant Buy, read 4 Nov 2026
  8. stripe.com/newsroom/news/agentic-commerce-suite, read 4 Nov 2026
  9. Conversations that Convert: Copilot Checkout and Brand Agents, read 4 Nov 2026
  10. shopify.com/news/ai-commerce-at-scale, read 4 Nov 2026
  11. mastercard.com/us/en/news-and-trends/stories/2026/verifiable-intent.html, read 4 Nov 2026
  12. The Block: Tempo mainnet goes live with MPP, read 4 Nov 2026
  13. Powering Product Discovery in ChatGPT, read 4 Nov 2026
  14. Linux Foundation launches the x402 Foundation, read 4 Nov 2026
  15. Visa opens the door to AI-driven shopping (Intelligent Commerce Connect), read 4 Nov 2026
  16. Amex Agentic Commerce Experiences, read 4 Nov 2026
  17. ACP changelog 2026-04-17, read 4 Nov 2026
  18. Visa Core Rules and Visa Product and Service Rules, 24 October 2026, read 4 Nov 2026
  19. ACP MAINTAINERS.md, read 4 Nov 2026
  20. FIDO Alliance to develop standards for trusted AI agent interactions, read 4 Nov 2026
  21. Mastercard launches Agent Pay for Machines, read 4 Nov 2026
  22. adyen.com/press-and-media/adyen-agentic, read 4 Nov 2026
  23. shopify.com/news/spring-26-edition-dev, read 4 Nov 2026
  24. x402 Foundation operational launch, read 4 Nov 2026
  25. docs.commercetools.com/api/releases/2026-07-30-ai-hub-is-now-generally-available, read 4 Nov 2026
  26. Perplexity Overturns Amazon Ban on AI Shopping Bot on Appeal, read 4 Nov 2026
  27. UCP release v2026-08-25, read 4 Nov 2026
  28. Stripe helps Muse shop across the internet with Link, read 4 Nov 2026
  29. Amazon blocks Meta's Muse agent from shopping on users' behalf, read 4 Nov 2026
  30. x402 exact scheme on Lightning (lnbtc), read 4 Nov 2026
  31. Mastercard trust and intelligence services, read 4 Nov 2026
  32. shopify.dev/changelog/posts/add-shopping-and-shop-pay-checkout-to-any-agent-with-shop-mcp, read 4 Nov 2026
  33. Watch Mastercard Agent Pay for Machines in action, read 4 Nov 2026
  34. corporate.walmart.com/news/2026/10/Making-It-Possible-for-Agents-to-Shop-on-Behalf-of-Customers, read 4 Nov 2026

Last reviewed