payment-protocols

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Custena / agent-payment-protocols

A neutral landscape analysis of AI agent payment protocols (x402, MPP, L402, Google AP2, Visa TAP + ICC, Mastercard Agent Pay, Amex ACE, Google/Shopify UCP, OpenAI ACP, and others). Maintained by Genesis Software Group, Copenhagen. Updated April 2026. CC BY 4.0.

mcp mpp ai-agents l402 eu-ai-act x402 agentic-commerce agent-payments payment-protocols

Updated Apr 20, 2026

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payment-protocols

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Custena / agent-payment-protocols

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