Agentic Commerce Protocol
- Launch date
- September 29, 2025
- Developer
- Stripe & OpenAI
- License
- Apache 2.0
- Key fact
- 1,200+ GitHub Stars · Powers ChatGPT Instant Checkout
Real-time tracker for agentic commerce protocols, AI platform support, and market data. Every data point sourced from primary references.
Agentic commerce runs on two distinct layers — the commerce protocols that handle transactions, and the agent infrastructure protocols that enable agents to act.
GitHub Stars as a proxy for developer ecosystem traction
Source: GitHub. Stars reflect developer community signals, not commercial deployment metrics.
GitHub Stars · February 2026
Which AI platforms support which agentic commerce protocols
Last verified: February 2026
← Scroll to see all protocols →
| AI Platform | MCP | A2A | AP2 | ACP | UCP | Sources |
|---|---|---|---|---|---|---|
| ChatGPT / OpenAI | ||||||
| Google Gemini | ||||||
| Microsoft Copilot | ||||||
| Perplexity | — | — | — | — | ||
| Claude / Anthropic |
Protocol support across major ecommerce platforms
Last verified: February 2026
Showing ACP, UCP, and MCP — the three commerce-layer protocols. A2A and AP2 operate at the agent communication and payment layers, not the merchant commerce layer.
← Scroll to see all protocols →
| Platform | ACP | UCP | MCP | Sources |
|---|---|---|---|---|
| Shopify | ||||
| WooCommerce | ||||
| Salesforce Commerce Cloud | ||||
| BigCommerce |
Key milestones in agentic commerce infrastructure — most recent first
OpenAI launches ACP Instant Checkout on Shopify — Glossier, SKIMS, Spanx, and Vuori as initial merchant partners
OpenAI on XAgentic AI Foundation welcomes 97 new members including JPMorgan, Red Hat, and American Express — total membership reaches 146 organizations
Linux FoundationGoogle announces WebMCP early preview — websites can now expose structured tools to AI browser agents via declarative or imperative APIs
Chrome DevelopersAmazon launches Ads MCP Server in open beta — lets AI agents create campaigns and manage accounts via natural language across Claude, ChatGPT, and Gemini
Amazon AdsSalesforce announces UCP support
SalesforceGoogle & Shopify launch Universal Commerce Protocol (UCP) — 20+ endorsing partners
Google BlogMicrosoft launches Copilot Checkout with ACP support
MicrosoftBigCommerce partners with Stripe for Agentic Commerce Suite
BigCommerceVisa completes "hundreds" of secure agent-initiated transactions with partners
VisaStripe announces Agentic Commerce Suite
StripeGoogle announces official MCP support for Google services
Google CloudSalesforce unveils Agentforce Commerce with ACP integration
SalesforceSalesforce announces ACP support
SalesforceWooCommerce announces MCP support and agentic commerce roadmap
WooCommerceStripe & OpenAI announce Agentic Commerce Protocol (ACP)
StripeOpenAI launches ACP Instant Checkout for U.S. Plus and Pro users — Etsy goes live as first major commerce partner
OpenAIGoogle announces Agent Payments Protocol (AP2)
Google CloudGoogle upgrades A2A protocol with gRPC support — 150+ org ecosystem
Google CloudMicrosoft announces MCP general availability in Copilot Studio
MicrosoftMicrosoft announces A2A support in Copilot Studio
MicrosoftGoogle announces Agent2Agent Protocol (A2A) — 50+ launch partners
GoogleAnthropic announces Model Context Protocol (MCP)
AnthropicWhat 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
Latest developments in agentic commerce — verified before publishing
Last updated: March 6, 2026
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.
MastercardSplitit, 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 — SplititAffirm 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 RelationsGoogle 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 HelpSkyscanner 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 NewsroomSamsung 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 ChangelogUpdated version of the visual testing tool for MCP servers. Fixed inclusion of server/static in published package files and removed misleading structured content compatibility warning.
GitHub — modelcontextprotocolDocumentation update adding AgentTrust to the official partners list for the Agent2Agent protocol, expanding the ecosystem of A2A-compatible solutions under the Linux Foundation.
GitHub — a2aprojectPull request opened to update GOVERNANCE.md for the Agent2Agent protocol, reflecting ongoing governance refinements for the Linux Foundation-hosted project.
GitHub — a2aprojectThe WebMCP specification received an update adding a mitigations section to its security and privacy (S&P) considerations, strengthening the formal spec ahead of wider browser adoption.
W3C WebMachinelearning GitHubFeature proposal for bidirectional streaming over gRPC in the Agent2Agent protocol, enabling more efficient real-time communication between agents.
GitHub — a2aprojectThe MCP Apps extension added a ui/download-file method enabling host-mediated file downloads, plus improved pdf-server path validation and root support.
GitHub — modelcontextprotocol/ext-appsFirst stable release of the C# SDK for Model Context Protocol. Marks RunSessionHandler as experimental, adds OAuth backward compatibility for client conformance, and includes documentation updates. Follows the SDK tiering system published Feb 23, 2026.
GitHub — modelcontextprotocolChatGPT 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 CenterOutreach 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.
Yahoo FinanceThe 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 FoundationMajor update to the MCP Inspector adding MCP Apps support, displaying tool title and annotations in UI, enhanced schema resolution, and OAuth flow improvements. MCP Apps enables tools to return interactive UI components that render directly in conversations.
GitHub — modelcontextprotocolDocumentation PR proposing DID-based agent identity verification extension via AIP (Agent Identity Protocol) for enhanced security and trust in agent-to-agent communications.
GitHub — a2aprojectStripe 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 NewsroomSpecification refactoring that renames SendMessageConfiguration.blocking to SendMessageConfiguration.return_immediately for improved clarity in the A2A protocol spec.
GitHub — a2aprojectMCP Apps v1.1.0 introduced an arcade server, renamed the 'skill' to 'create-mcp-app', changed the Host-Sandbox communication protocol to 'SHOULD', and added PDF search with auto-allow for local directories.
GitHub — modelcontextprotocol/ext-appsGoogle 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.
VentureBeatAmazon 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 AdsStripe's dispatch from NRF 2026 reports the show's first-ever dedicated AI Stage, with hundreds of retailers attending agentic commerce sessions. A live session poll found nearly 75% of retail attendees were actively implementing or planning agentic commerce initiatives.
StripeGoogle launched UCP, an open standard for agentic commerce co-developed with Shopify, Etsy, Wayfair, Target, and Walmart. Endorsed by 20+ partners including Adyen, American Express, Best Buy, Mastercard, Stripe, The Home Depot, and Visa.
Google BlogMicrosoft launched Copilot Checkout powered by Stripe, enabling purchases from Etsy, Urban Outfitters, Anthropologie, and Ashley Furniture via ACP. Also announced partnerships with PayPal, Shopify, Mastercard Agent Pay, and Visa Intelligent Commerce.
Microsoft Advertising BlogAnthropic donated MCP to the newly formed Agentic AI Foundation (AAIF) under the Linux Foundation. Co-founders: Anthropic, Block, OpenAI. Supporters include Google, Microsoft, AWS, and Cloudflare.
AnthropicMorgan Stanley Research estimates agentic shoppers could represent 10% of US online retail in a base case, rising to an optimistic scenario of $385B — a third major firm projecting significant agentic commerce market share by decade end.
Morgan StanleyChatGPT's Instant Checkout feature is expanding to Shopify merchants, starting with Spanx, Skims, and Glossier. U.S. users can now find and buy directly from over a million Shopify merchants through ChatGPT using the Agentic Commerce Protocol.
OpenAI Help CenterOpenAI launches ACP-powered Instant Checkout for U.S. Plus and Pro users, with Etsy live and Shopify merchants including Glossier, SKIMS, and Spanx coming soon.
OpenAIReal-world deployments and market validation — distinct from protocol launches tracked in the timeline above
Mastercard and Google introduced Verifiable Intent, an open standards-based framework creating tamper-resistant authorization records for agentic commerce using Selective Disclosure. Designed to interoperate with AP2 and ACP.
View sourceAffirm extended BNPL financing into agentic commerce via Stripe's Shared Payment Tokens — scoped, time-limited credentials that let AI agents complete purchases without exposing underlying card details.
View sourceAmazon's Ads MCP Server launches in open beta at IAB ALM — AI agents can now create campaigns, run reports, and manage accounts via natural language across Claude, ChatGPT, and Gemini.
View sourceVisa and partners mark a milestone — agentic commerce moves from lab to live commercial use across real merchants.
View sourcePayPal enables merchants to be discoverable within Perplexity with checkout in-chat — agentic commerce reaches mainstream consumers.
View sourceOpenAI brings ACP Instant Checkout to Shopify merchants, with Glossier, SKIMS, Spanx, and Vuori as the first launch partners — marking the first major commerce platform deployment of the Agentic Commerce Protocol.
View sourceBain Consumer Lab survey finds generative AI has already fundamentally changed how Americans discover and evaluate products before buying.
View sourceOpenAI introduces ACP-powered Instant Checkout for U.S. Plus and Pro users, with Etsy as the first major commerce partner to go live.
View sourceWant to get your brand visible to agentic AI systems?