The canonical map of AI agent payment rails. Protocols, wallets, settlement, governance. Updated as the space moves.

Joined March 2026
Agent Payment Spotlight: @tempo @stripe co-authored the spec. @AnthropicAI and @OpenAI are day-1 services. $500M raised at $5B. Mainnet launched 11 days ago. L3 on the Agent Payments Stack agentpaymentsstack.com/tempo… 🧵👇
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