ACPActive
Agentic Commerce Protocol
- Launch date
- September 29, 2025
- Developer
- Stripe & OpenAI
- License
- Apache 2.0
- Key fact
- 1,200+ GitHub Stars · Open standard by Stripe & OpenAI
Last Updated: April 18, 2026
State of Agentic Commerce
Real-time tracker for agentic commerce protocols, AI platform support, and market data. Every data point sourced from primary references.
Protocol Stack
Agentic commerce runs on two distinct layers — the commerce protocols that handle transactions, and the agent infrastructure protocols that enable agents to act.
Commerce LayerHandles merchant discovery, checkout, and payments
UCPActive
Universal Commerce Protocol
- Launch date
- January 11, 2026
- Developer
- Google, Shopify, Etsy, Wayfair, Target & Walmart
- License
- Apache 2.0
- Key fact
- 2,400+ GitHub Stars · Cart, Catalog & Identity Linking (Mar 2026)
AP2Active
Agent Payments Protocol
- Launch date
- September 16, 2025
- Developer
- License
- Apache 2.0
- Key fact
- 2,800+ GitHub Stars · 60+ partners
MPPActive
Machine Payments Protocol
- Launch date
- March 18, 2026
- Developer
- Stripe & Tempo
- License
- Open Standard
- Key fact
- Machine-to-machine agent payments · Visa extends to card rails · Bridges x402 via Visa CLI
x402Active
x402 Protocol
- Launch date
- May 2025
- Developer
- Coinbase
- License
- MIT
- Key fact
- HTTP-native · USDC on Base (multi-network by design) · Visa CLI support
Agent InfrastructureEnables agents to access tools and coordinate with each other
MCPActive
Model Context Protocol
- Launch date
- November 25, 2024
- Developer
- Anthropic
- License
- MIT / Apache 2.0
- Key fact
- 81,000+ Stars (Servers Repo)
WebMCPPreview
WebMCP
- Launch date
- February 10, 2026
- Developer
- Google / Chrome
- License
- Open
- Key fact
- Two APIs — declarative (HTML) & imperative (JavaScript)
A2AActive
Agent2Agent Protocol
- Launch date
- April 9, 2025
- Developer
- Google → Linux Foundation
- License
- Apache 2.0
- Key fact
- 150+ supporting organizations · 22,000+ GitHub Stars
Protocol Developer Momentum
GitHub Stars as a proxy for developer ecosystem traction
Source: GitHub. Stars reflect developer community signals, not commercial deployment metrics.
Loading chart...
GitHub Stars · March 2026
AI Platform Support Matrix
Which AI platforms support which agentic commerce protocols
Last verified: April 2026
← Scroll to see all protocols →
| AI Platform | MCP | A2A | AP2 | ACP | UCP | Sources |
|---|---|---|---|---|---|---|
| ChatGPT / OpenAI | ||||||
| Google Gemini | ||||||
| Microsoft Copilot | ||||||
| Perplexity | — | — | — | — | ||
| Claude / Anthropic |
Supported In Progress Not Supported
Commerce Platform Compatibility
Protocol support across major ecommerce platforms
Last verified: April 2026
Showing ACP, UCP, and MCP — the three protocols most relevant to merchant integration. MCP enables agent-to-tool connectivity; ACP and UCP handle commerce transactions. A2A and AP2 operate at the agent communication and payment layers.
← Scroll to see all protocols →
| Platform | ACP | UCP | MCP | Sources |
|---|---|---|---|---|
| Shopify | ||||
| WooCommerce | ||||
| Salesforce Commerce Cloud | ||||
| BigCommerce |
Supported In Progress Not Supported
Industry Voices
What leaders are saying about the agentic commerce shift
“AI agents will be a big part of how we shop in the not-so-distant future. To help lay the groundwork, we partnered with Shopify, Etsy, Wayfair, Target and Walmart, and endorsed by 20+ more.”
Sundar Pichai
CEO, Google & Alphabet
January 11, 2026
“I'm really really excited about Agentic Commerce. There is so much amazing stuff being built. Everything I test just feels delightful and magical.”
Tobi Lütke
CEO, Shopify
December 23, 2025
“In 2026, AI agents won't just assist your shopping — they will complete your purchases, powered by Visa's global scale, standards leadership, and unparalleled commitment to secure agentic commerce.”
Rubail Birwadker
SVP Head of Growth Products & Partnerships, Visa
December 18, 2025
“By 2030, the US B2C retail market alone could see up to $1 trillion in orchestrated revenue from agentic commerce, with global projections reaching as high as $3 trillion to $5 trillion.”
McKinsey & Company
QuantumBlack AI Research
October 17, 2025
Recent News
Major developments from the past 90 days — verified before publishing
Last updated: April 18, 2026
Apr 15, 2026Protocol
Cloudflare Renames Browser Rendering to Browser Run, Ships Native WebMCP Support
Cloudflare rebranded its Browser Rendering product to Browser Run and added native WebMCP support, letting AI agents discover and call website tools declared via the Chrome WebMCP API. The release ships with an experimental Chrome beta pool so agent developers can prototype WebMCP flows before the API reaches stable.
CloudflareApr 14, 2026Payment
American Express Debuts ACE Developer Kit With Industry-First Agent Purchase Protection
American Express launched Agentic Commerce Experiences (ACE), a proprietary developer framework for trusted AI agent transactions. ACE delivers five integrated services spanning agent registration, account enablement, intent intelligence, payment credentials, and cart context, backed by the industry-first Amex Agent Purchase Protection that covers Card Members against registered-agent errors. Launch partners: Adyen, Fiserv, Forter, Global Payments, PayPal, and Stripe; flagship merchants: Delta Air Lines, Expedia, and Hilton.
American ExpressApr 14, 2026Payment
Visa Becomes Anchor Validator on Stripe and Tempo's Blockchain
Visa committed to operating an anchor validator on Tempo, the Stripe-backed blockchain that hosts the Machine Payments Protocol (MPP). Zodia Custody joined as a second validator, hardening the network Stripe and Tempo positioned on March 18 as the settlement layer for agent-initiated payments.
VisaApr 9, 2026Protocol
A2A Protocol Hits 150+ Organizations on First Anniversary at Linux Foundation
The Agent2Agent (A2A) Protocol, now a Linux Foundation project, announced 150+ supporting organizations at its one-year mark — up from ~50 in April 2025. New backers include AWS, Cisco, IBM, Microsoft, Salesforce, SAP and ServiceNow. The repo crossed 22,000 GitHub stars and the SDK expanded to five languages with production deployments in finance, supply chain and insurance.
Linux FoundationApr 8, 2026Protocol
UCP Spec v2026-04-08 Ships Breaking Changes and Formal A2A Transport Support
The Universal Commerce Protocol (UCP) maintainers shipped spec v2026-04-08 with three breaking changes, including moving signing_keys from nested ucp.signing_keys to the document root. The release formally adds A2A as a transport and separates business-profile manifests (/.well-known/ucp) from platform-profile manifests with distinct field requirements.
Google for DevelopersApr 1, 2026Commerce
Perplexity Petitions Federal Appeals Court to Lift Amazon Ban on Comet Shopping Agent
Perplexity asked the Ninth Circuit to vacate a March 10 preliminary injunction (N.D. Cal. 3:25-cv-09514) that bars its Comet AI shopping agent from accessing Amazon.com. Amazon successfully argued Comet violated the Computer Fraud and Abuse Act — the first major U.S. court decision setting precedent on agent-access rights.
CourtListenerApr 1, 2026Payment
Mastercard Expands Agent Pay to Hong Kong With HSBC and DBS
Mastercard completed its first live authenticated agentic transaction in Hong Kong through a partnership with HSBC and DBS Hong Kong. An AI agent via CardInfoLink booked a Hong Kong airport ride through mobility provider hoppa, using Mastercard Payment Passkey-authenticated tokens. Mastercard also announced a regional AI Centre of Excellence in Singapore.
Mastercard NewsroomApr 1, 2026Payment
Visa and Ramp Expand Agentic AI Partnership for Corporate Bill Pay
Ramp renewed its multi-year Visa issuing agreement and deepened technical integration around Visa Intelligent Commerce and the Trusted Agent Protocol. The companies will deploy AI agents to automate corporate bill pay across Ramp's 50,000+ customers, aiming to reduce manual AP work and give enterprises finer-grained control over agent-initiated spend.
VisaMar 24, 2026Commerce
OpenAI Expands ACP for Product Discovery - Target, Walmart, Sephora, Nordstrom, Best Buy, Lowe's, Wayfair Integrated in ChatGPT
OpenAI shifts ChatGPT shopping from Instant Checkout to ACP-powered product discovery. Walmart launched an in-ChatGPT app with account linking, loyalty, and Walmart Payments. Shopify connected millions of merchants. Visual browsing, side-by-side comparison, and conversational refinement now live for all ChatGPT users.
OpenAI BlogMar 24, 2026Commerce
Shopify: Millions of Merchants Now Selling in AI Chats via Agentic Storefronts - ChatGPT, Copilot, Google AI Mode, Gemini
Shopify launches Agentic Storefronts giving merchants out-of-the-box access to ChatGPT, Microsoft Copilot, Google AI Mode, and Gemini. New Agentic Plan lets non-Shopify brands add products to Shopify Catalog to sell across AI channels. Orders flow into admin with referral attribution.
Shopify NewsroomMar 24, 2026Commerce
Gap Inc. Adopts UCP and Launches Gemini Native Checkout
Gap Inc. became the first major fashion company to deploy native Gemini checkout, powered by Google's Universal Commerce Protocol, across Gap, Old Navy, Banana Republic and Athleta. Shoppers browse, get styling recommendations and check out without leaving Gemini, initially paying via Google Pay. Gap also joined as early partner of Bold Metrics' new Agentic Sizing Protocol (ASP).
Gap Inc.Mar 19, 2026Protocol
Google Expands UCP With Cart, Catalog, and Identity Linking - Commerce Inc, Salesforce, Stripe Joining
Google published major UCP capability updates co-developed with community partners. New optional capabilities include Cart (agents save multiple items from a single store at once), Catalog (agents retrieve real-time pricing, inventory, and variant data), and Identity Linking (shoppers receive loyalty/member pricing benefits on UCP-integrated platforms). Google is also rolling out simplified UCP onboarding via Merchant Center. Commerce Inc, Salesforce, and Stripe will implement UCP on their platforms in the near future.
Google BlogMar 18, 2026Payment
Stripe and Tempo Launch Machine Payments Protocol - Open Standard for Autonomous AI Agent Payments
Stripe and Tempo (a payments blockchain co-developed by Stripe and Paradigm) launched the Machine Payments Protocol (MPP), an open standard enabling AI agents to pay for services autonomously machine-to-machine. Visa is extending MPP to support card-based payments on its global network via the Visa Acceptance Platform. The Visa CLI also bridges MPP and Coinbase x402, positioning it as a cross-standard connector across emerging agentic payment rails.
StripeMar 18, 2026Payment
Visa CLI Bridges x402 and MPP - Card Networks Move to Support Crypto-Native Agent Payment Rails
Visa announced its CLI supports both Stripe and Tempo's Machine Payments Protocol (MPP) and Coinbase's x402 protocol, positioning Visa as a cross-standard connector between traditional card rails and emerging crypto-native agent payment standards. The move signals that incumbent payment networks are treating autonomous agent payment protocols as legitimate infrastructure rather than fringe experiments.
VisaMar 10, 2026Commerce
Wizard Partners With Stripe on ACP to Enable Agentic Commerce for Leading Retailers
Wizard, the first AI agent purpose-built for ecommerce, announced a partnership with Stripe to accelerate ACP adoption. Wizard joins Stripe's group of early ACP partners helping retailers turn AI-driven discovery into incremental sales while maintaining control of brand, catalog, fulfillment, and customer relationships.
Business Wire - WizardMar 10, 2026Commerce
Federal Court Blocks Perplexity's Comet Shopping Agent From Accessing Amazon
The Northern District of California (3:25-cv-09514, Judge Chesney) issued a preliminary injunction barring Perplexity's Comet shopping agent from accessing Amazon.com, ruling Amazon was likely to succeed on Computer Fraud and Abuse Act claims. The ruling is the first major U.S. judicial decision on whether retailers can legally block third-party AI shopping agents and triggered Perplexity's April 1 appeal to the Ninth Circuit.
CourtListenerMar 5, 2026Commerce
Mastercard and Google Introduce Verifiable Intent Trust Layer for Agentic Commerce
Mastercard and Google introduced Verifiable Intent, an open, standards-based cryptographic framework that creates tamper-resistant authorization records for AI agent transactions using Selective Disclosure. Designed to interoperate with Google's Agent Payments Protocol (AP2) and the Agentic Commerce Protocol (ACP) from Stripe and OpenAI.
MastercardMar 5, 2026Commerce
Splitit Backs Google's Universal Commerce Protocol with Card-Linked Installments
Splitit, the global card-linked installment payment provider, announced backing for Google's Universal Commerce Protocol (UCP), enabling flexible BNPL-style financing within agentic commerce checkout flows.
PRNewswire - SplititMar 3, 2026Payment
Nexi Group and Google Cloud Partner to Build Agentic Commerce Infrastructure Across Europe
Nexi Group, Europe's largest paytech, signed an MoU with Google Cloud to enable AI agent-driven shopping and secure payments across Europe. Nexi committed to support UCP and AP2 protocols, extending agentic commerce infrastructure to the European market.
Google Cloud Press ReleaseMar 3, 2026Commerce
Affirm Expands Stripe Partnership to Support Shared Payment Tokens for Agentic Commerce
Affirm expanded its partnership with Stripe to support Shared Payment Tokens (SPTs), extending flexible BNPL financing into agentic commerce transactions. SPTs are scoped to a single transaction and time-limited, enabling AI agents to complete purchases using customer-authorized payment credentials without exposing underlying card details.
Affirm Investor RelationsMar 2, 2026Protocol
Google Publishes Official Merchant Help Page for Universal Commerce Protocol (UCP)
Google published an official help page in Google Merchant Center detailing how UCP and UCP-powered checkout work across Google surfaces, signaling the protocol's transition from announcement to active merchant onboarding.
Google Merchant Center HelpFeb 27, 2026Commerce
Skyscanner Launches Flights App Inside ChatGPT for UK and US Travelers
Skyscanner launched a dedicated app inside ChatGPT, enabling travelers in the UK and US to search for and compare live flight options using natural language without leaving the ChatGPT interface.
Skyscanner NewsroomFeb 27, 2026Commerce
Perplexity Becomes First Non-Google Company with OS-Level Access on Samsung Galaxy S26
Samsung announced Perplexity will come pre-installed on every Galaxy S26 as a system-level AI agent with OS-level access - the first time Samsung has granted this level of access to a non-Google, non-Samsung company. Users can invoke Perplexity via 'Hey Plex' or the side button.
Perplexity ChangelogFeb 25, 2026Commerce
ChatGPT Projects: Add Sources from Slack, Google Drive, and More
ChatGPT Projects now allow users to build a knowledge base by adding sources from Slack channels, Google Drive files/folders, and other connected apps - extending ACP's commerce integrations.
OpenAI Help CenterFeb 24, 2026Protocol
Outreach Launches MCP Server for Claude, Joins Growing Enterprise MCP Ecosystem
Outreach announced general availability of its MCP Server integrating with Claude, alongside Deal Agent, Meeting Prep Agent, and Outreach Knowledge features. MCP Apps v1.1.1 also added ChatGPT support to the readme and a Claude Code plugin.
Business WireFeb 24, 2026Protocol
Agentic AI Foundation Welcomes 97 New Members - JPMorgan, Red Hat, American Express Among Gold Tier
The Agentic AI Foundation (AAIF), the Linux Foundation entity governing MCP and A2A, announced 97 new members including 18 Gold-tier (JPMorgan Chase, Red Hat, Akamai, American Express, Autodesk, Circle, ServiceNow, UiPath, Workato, TELUS), bringing total membership to 146.
Linux FoundationFeb 24, 2026Commerce
Stripe 2025 Annual Update Published - ACP Milestones Highlighted
Stripe published its 2025 annual update and letter, providing insights into the company's progress including the launch of the Agentic Commerce Protocol and Instant Checkout partnerships.
Stripe NewsroomFeb 12, 2026Protocol
WebMCP Ships in Chrome 146 Canary - Co-Developed with Microsoft, Incubated at W3C
Google Chrome shipped WebMCP in Chrome 146 Canary as an early preview. Co-developed with Microsoft and incubated via W3C's Web Machine Learning group. Introduces the navigator.modelContext API with Declarative and Imperative modes.
Chrome DevelopersFeb 2, 2026Protocol
Amazon Opens Its Ads Platform to AI Agents With MCP Server Launch
Amazon launched its Ads MCP Server in open beta at the IAB Annual Leadership Meeting, letting AI agents including Claude, ChatGPT, and Gemini connect to Amazon's advertising APIs through a single integration. Agents can create campaigns, run reports, and manage accounts via natural language - the largest real-world MCP deployment in the commerce ecosystem to date.
Amazon AdsKey Milestones
The greatest hits of agentic commerce — a curated, all-time view spanning protocol launches, payment breakthroughs, and landmark deployments
Apr 14, 2026Payment
American Express Debuts ACE Developer Kit With Industry-First Agent Purchase Protection
Amex launches Agentic Commerce Experiences (ACE) — a proprietary framework for trusted AI agent transactions backed by the first-ever consumer protection program for agentic commerce. Launch partners include Adyen, Fiserv, Forter, Global Payments, PayPal and Stripe, with Delta, Expedia and Hilton as flagship merchants.
View sourceApr 14, 2026Payment
Visa Becomes Anchor Validator on Stripe and Tempo's Blockchain
Card-network endorsement of a stablecoin-settlement chain for agent payments — bridges Visa's traditional rails with the Machine Payments Protocol infrastructure.
View sourceApr 9, 2026Protocol
A2A Hits 150+ Organizations on First Anniversary at Linux Foundation
Agent2Agent triples its supporter base in a year — AWS, Cisco, IBM, Microsoft, Salesforce, SAP and ServiceNow join, with the repo crossing 22,000 GitHub stars and production deployments in finance, supply chain and insurance.
View sourceMar 24, 2026Commerce
OpenAI + Shopify Reshape ChatGPT Commerce — Agentic Storefronts and Walmart Go Live
OpenAI pivots from Instant Checkout to ACP-powered product discovery with Walmart, Target, Sephora, Nordstrom, Best Buy, Lowe's and Wayfair. Shopify simultaneously launches Agentic Storefronts, extending millions of merchants to ChatGPT, Copilot, Gemini and Google AI Mode.
View sourceMar 18, 2026Payment
Stripe and Tempo Launch Machine Payments Protocol (MPP)
Open standard for autonomous AI agent payments, with Tempo mainnet as the settlement layer. Visa extends MPP to card-based payments via the Visa Acceptance Platform, and the Visa CLI bridges MPP with Coinbase x402.
View sourceMar 5, 2026Payment
Mastercard and Google Introduce Verifiable Intent
Open, standards-based cryptographic framework creating tamper-resistant authorization records for AI agent transactions using Selective Disclosure. Designed to interoperate with AP2 and ACP.
View sourceFeb 10, 2026Protocol
Google Chrome Ships WebMCP Early Preview
First browser-native way for websites to expose structured tools to AI agents. Co-developed with Microsoft and incubated at W3C, WebMCP introduces the navigator.modelContext API with declarative and imperative modes.
View sourceFeb 2, 2026Commerce
Amazon Opens Its Ads Platform to AI Agents via MCP
Amazon's Ads MCP Server launches in open beta at IAB ALM — AI agents including Claude, ChatGPT and Gemini can create campaigns, run reports and manage accounts via natural language. The largest real-world MCP deployment in the commerce ecosystem to date.
View sourceJan 11, 2026Protocol
Google & Shopify Launch Universal Commerce Protocol (UCP) at NRF 2026
Google's answer to ACP launches with co-developers Shopify, Etsy, Wayfair, Target and Walmart, plus 20+ endorsing partners including Adyen, Amex, Best Buy, Mastercard, Stripe, The Home Depot and Visa.
View sourceDec 18, 2025Payment
Visa Completes Hundreds of Secure AI Agent-Initiated Transactions
Visa and partners mark a milestone — agentic commerce moves from lab to live commercial use across real merchants.
View sourceDec 10, 2025Protocol
Google Announces Official MCP Support for Google Services
Cross-vendor consolidation moment — Google formally backs Anthropic's Model Context Protocol across its services, joining OpenAI and Microsoft as first-class MCP supporters.
View sourceNov 25, 2025Payment
PayPal & Perplexity Launch Instant Buy for US Consumers
PayPal enables merchants to be discoverable within Perplexity with checkout in-chat — agentic commerce reaches mainstream consumers.
View sourceNov 13, 2025Research
Bain: 30–45% of US Consumers Use GenAI for Product Research
Bain Consumer Lab survey finds generative AI has already fundamentally changed how Americans discover and evaluate products before buying.
View sourceSep 29, 2025Protocol
Stripe & OpenAI Launch the Agentic Commerce Protocol (ACP)
First open standard for agentic commerce transactions — kicks off the protocol arms race that defines the category, with Etsy going live as the inaugural merchant partner.
View sourceSep 16, 2025Payment
Google Announces Agent Payments Protocol (AP2)
Foundational payment protocol for agent-initiated transactions, using cryptographically-signed Mandates as verifiable-credential proofs of user intent across cards, stablecoins and real-time bank transfers.
View sourceApr 9, 2025Protocol
Google Launches Agent2Agent Protocol (A2A) With 50+ Partners
First open standard for agent-to-agent interoperability. Later donated to the Linux Foundation, A2A becomes the backbone for multi-agent workflows across 150+ supporting organizations.
View sourceNov 25, 2024Protocol
Anthropic Ships Model Context Protocol (MCP) — The Foundation of the Agentic Era
MCP becomes the universal connector between AI agents and external tools. Now backed by OpenAI, Google, Microsoft, and every major AI platform — the single most-adopted agent protocol to date.
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