Evidence-backed directory
Agentic Commerce Observatory
65 source-linked records across 9 protocols and 43 named organizations. The database tracks what was officially documented, not estimated market share or universal availability.
Dataset version: .
Status vocabulary: every row is “officially documented” because it is associated with a source URL in the site’s protocol data. It does not mean the organization is a formal partner of this site, that its capability is globally available, or that we have performed a production test.
Download the Observatory JSON · Open the evidence registry · Read inclusion rules
| Organization | Protocol | Documented role | Date | Evidence |
|---|---|---|---|---|
| WooCommerce | MCP | Commerce platform (MCP integration) | official source Native MCP support exposing store operations as tools (developer preview) | |
| Shopify | MCP | Commerce platform (MCP endpoint) | official source Exposed a public MCP endpoint for its agentic commerce layer (Spring 2026 Edition) | |
| Amazon Web Services (AWS) | x402 | Infrastructure; edge and agent runtime | official source Publishers on CloudFront and WAF can charge agents through x402, initially with USDC settlement on Base | |
| Adyen | Agent Pay | Agent Pay for Machines launch partner | official source Among 30+ launch partners for Agent Pay for Machines (AP4M) | |
| Cloudflare | Agent Pay | Agent Pay for Machines launch partner | official source Among 30+ launch partners for Agent Pay for Machines (AP4M) | |
| Coinbase | Agent Pay | Agent Pay for Machines launch partner | official source Among 30+ launch partners for Agent Pay for Machines (AP4M) | |
| OpenAI | TAP | AI platform partner (Visa Intelligent Commerce) | official source Strategic Visa and OpenAI collaboration for tokenized, agent-initiated Visa payments inside OpenAI experiences | |
| Stripe | Agent Pay | Agent Pay for Machines launch partner | official source Among 30+ launch partners for Agent Pay for Machines (AP4M) | |
| Getnet by Santander | Agent Pay | Acquirer; provider-described first Latin America Agent Pay transaction | official source With Mastercard and Neivor; the parties described it as the first real-world case in Mexico and Latin America | |
| Nordea | Agent Pay | Issuer; provider-described first Finnish Agent Pay transaction | official source Live agentic transaction on a Nordea Mastercard, orchestrated via PayOS | |
| ING | Agent Pay | Issuer; provider-described first European agentic payment | official source With Worldline and Mastercard; the parties described it as Europe's first end-to-end agentic payment in production | |
| Worldline | Agent Pay | Processor; provider-described first European agentic payment | official source With ING and Mastercard; the parties described it as Europe's first end-to-end agentic payment in production | |
| FIDO Alliance | AP2 | Standards body | official source Google donated AP2 to the FIDO Alliance; ownership transferred to keep the protocol platform-agnostic and community-led | |
| Mastercard | AP2 | Payment network | official source Co-developed Verifiable Intent, an AP2-compatible standard also being donated to FIDO | |
| OpenAI | ACP | AI agent surface | official source Extends ACP to product discovery; merchants keep their own checkout instead of Instant Checkout | |
| Target, Sephora, Nordstrom, Lowe's, Best Buy, The Home Depot, Wayfair | ACP | Retailers | official source Named as integrated into ACP for discovery | |
| Walmart | ACP | Retailer | official source In-ChatGPT app with account linking, loyalty and Walmart payments, alongside ACP discovery | |
| Browserbase | MPP | Adopter | official source Agents pay per headless-browser session | |
| Parallel Web Systems | MPP | Adopter | official source Agents pay per API call for web access | |
| PostalForm | MPP | Adopter | official source Agents pay to print and send physical mail | |
| Stripe | MPP | Co-author and payment infrastructure | official source MPP acceptance via the PaymentIntents API | |
| Tempo | MPP | Co-author | official source Co-authored the specification | |
| Etsy | UCP | Co-developer | official source Named co-developer in the launch announcement | |
| UCP | Platform (AI Mode in Search, Gemini app) | official source Launch announcement; future agentic checkout rollout on Google surfaces | ||
| Shopify | UCP | Co-developer | official source Named co-developer in the launch announcement | |
| Target | UCP | Co-developer | official source Named co-developer in the launch announcement | |
| Walmart | UCP | Co-developer | official source Named co-developer in the launch announcement | |
| Wayfair | UCP | Co-developer | official source Named co-developer in the launch announcement | |
| Linux Foundation (Agentic AI Foundation) | MCP | Governance home | official source MCP named as a founding technical contribution to AAIF | |
| OpenAI | MCP | Adopter; AGENTS.md contributor to AAIF formation | official source ChatGPT supports MCP; OpenAI contributed AGENTS.md to the AAIF formation | |
| Cloudflare | TAP | Co-development collaborator | official source Named development collaborator in the launch release | |
| Coinbase | TAP | Early partner; x402 interoperability | official source Visa states collaboration with Coinbase on x402 interoperability | |
| Microsoft | TAP | Early partner (feedback) | official source Named early partner in the launch release | |
| Shopify | TAP | Early partner (feedback) | official source Named early partner in the launch release | |
| Stripe | TAP | Early partner (feedback) | official source Named early partner in the launch release | |
| Visa | TAP | Author | official source Protocol published in the Visa Developer Center and on GitHub | |
| Etsy | ACP | Merchant platform | official source First merchants live in Instant Checkout | |
| OpenAI | ACP | AI agent surface | official source Reference implementation for ChatGPT Instant Checkout | |
| Shopify | ACP | Merchant platform | official source Announced as coming soon to Instant Checkout | |
| Stripe | ACP | Payment processor | official source Co-author; Shared Payment Token API | |
| American Express | AP2 | Payment network | official source Named launch collaborator | |
| Coinbase | AP2 | Crypto / x402 extension | official source Named collaborator; x402 extension for crypto | |
| Google (AP2) | x402 | Crypto extension | official source AP2 extends crypto payments via the A2A x402 extension | |
| Google Cloud | AP2 | Protocol author | official source Announced and stewards the protocol | |
| Intuit | AP2 | Financial software | official source Named launch collaborator | |
| Mastercard | AP2 | Payment network | official source Named launch collaborator | |
| PayPal | AP2 | Payments platform | official source Named launch collaborator | |
| Salesforce | AP2 | CRM and commerce | official source Named launch collaborator | |
| Worldpay | AP2 | Payment processor | official source Named launch collaborator | |
| Amazon Web Services | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| Cisco | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| Microsoft | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| Salesforce | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| SAP | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| ServiceNow | A2A | Linux Foundation project member | official source Founding member of the LF Agent2Agent project | |
| Anthropic | x402 | AI platform | official source Named launch collaborator | |
| Circle | x402 | Stablecoin issuer | official source Named launch collaborator (USDC) | |
| Coinbase | x402 | Creator / facilitator | official source Launched x402 and operates a hosted facilitator | |
| Braintree | Agent Pay | Checkout / acquiring partner | official source Named acquirer/checkout partner | |
| Checkout.com | Agent Pay | Checkout / acquiring partner | official source Named acquirer/checkout partner | |
| IBM | Agent Pay | Technology enabler (B2B) | official source watsonx Orchestrate for B2B use cases | |
| Mastercard | Agent Pay | Author | official source Agent Pay program launch | |
| Microsoft | Agent Pay | AI platform collaboration | official source Azure OpenAI Service and Copilot Studio use cases | |
| A2A | Creator | official source Announced with 50+ technology partners | ||
| Anthropic | MCP | Creator / steward | official source Introduced and open-sourced MCP |