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

Joined March 2026
Agent Payments Stack retweeted
Shoutout to @JordanLyall — CPO @artblocks_io, and the person quietly mapping the entire agent payments ecosystem through @agentpaystack. 162 projects. 6 layers. one of the most useful references in this space right now. glad we made it onto the map!
We're in. 🎉 MPPGate is now listed on the Agent Payments Stack — a directory mapping every project building infrastructure for AI agent payments. 162 projects. 6 layers. we're at L4: Governance & Policy. that's the layer that decides how agents spend. budgets, limits, auto-stop. that's us.
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Agent Payments Stack retweeted
"Governance and Policy" @contofinance now added to the L4 layer of the @agentpaystack
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