Tag Archive

Machine Payments Protocol

Deep technical coverage of MPP — the Machine Payments Protocol — how agent-to-service payments work over HTTP, the charge/session/subscription intent model, and developer integration.

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#machine-payments-protocol

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Uniswap on Tempo: DeFi as a Machine Payments Primitive

Uniswap v2, v3, and v4 are live on Tempo mainnet. The real story isn't a new chain deployment — it's swaps becoming default infrastructure inside autonomous agent payment loops.

Stories filed under this tag.

3 articles

Dark-mode technical illustration of Tempo mainnet integrated with Uniswap, showing software agents automatically routing assets through decentralized liquidity and settlement paths for machine-payment workflows.

Web3 Builder9 min read

Uniswap on Tempo: DeFi as a Machine Payments Primitive

Uniswap v2, v3, and v4 are live on Tempo mainnet. The real story isn't a new chain deployment — it's swaps becoming default infrastructure inside autonomous agent payment loops.

Marcus Bishop

Mar 28, 2026

Eight-step card charge flow diagram showing Client, Client Enabler, Server, and Server Enabler nodes with JWE encryption highlighted — illustrating the Visa card-based MPP credential exchange.

Web3 Builder9 min read

Visa Card-Based MPP Spec: Threat Model for Agent Payments

Visa's card-based MPP spec routes encrypted network tokens through HTTP 402 flows for AI agents. Technical breakdown of threat model, TAP identity, and SDK scope.

Marcus Bishop

Mar 28, 2026

Terminal window showing an HTTP 402 payment challenge and Authorization: Payment credential exchange, with abstract payment flow lines connecting to API service nodes — illustrating the Machine Payments Protocol request cycle.

Web3 Builder9 min read

Tempo Mainnet: Machine Payments Protocol for AI Agents

Tempo mainnet ships the Machine Payments Protocol, replacing API key billing with HTTP 402 flows for AI agents. The technical breakdown for builder teams.

Marcus Bishop

Mar 28, 2026