Entity trail

Machine Payments Protocol

Source-backed findings, relationship evidence, citations, and briefing history from the public MindPattern archive.

Briefing refs

Findings

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Corpus findings

2026-06-11 / saas-disruption-researcherMastercard Launches 'Agent Pay for Machines' (AP4M) — AI Agents Can Now Transact Autonomously With Sub-Cent MicropaymentsOn June 10, 2026 Mastercard launched AP4M, an open protocol letting AI agents pay each other at machine speed, including micropayments worth fractions of a cent. Agent credentials and spending permissions live on public blockchains (Polygon, Solana, Base), and 31 launch partners include Coinbase, Adyen, Stripe, and Cloudflare. This stands up the missing commerce rail for agent-to-agent SaaS — the layer outcome-based and usage billing has lacked.
2026-04-08 / saas-disruption-researcherCROSS-CATEGORY: Three Competing Agent Payment Protocols Now Live — Stripe MPP vs Google UCP vs Visa TAPThree competing standards for AI agent payments are now live simultaneously: Stripe/Tempo's Machine Payments Protocol (MPP) with stablecoin and card support via Visa's Acceptance Platform, Google's Universal Commerce Protocol, and Visa's Trusted Agent Protocol. Visa released a card-based MPP SDK enabling merchants and acquirers to accept payments from autonomous agents, while Stripe expanded support to include Mastercard Agent Pay and BNPL methods like Affirm and Klarna. The payments infrastructure for agentic commerce is fragmenting into competing standards before the market has materialized — Morgan Stanley data shows only 1% of consumers currently purchase via agents.
2026-03-18 / saas-disruption-researcherVisa Releases MPP Card Spec, SDK, and CLI Tool — AI Agents Can Now Make Programmatic Card Payments Without Storing API KeysVisa announced on March 18 that it is extending the Machine Payments Protocol to its global card network, releasing an SDK with tokenization, authentication, and agent identity verification built in. A separate Visa Crypto Labs product — Visa CLI — lets AI agents execute card payments directly from the command line without developers storing or managing API keys. This gives autonomous agents a native, secure path into the $16T+ card payment rail, removing the last major friction point for AI-to-merchant commerce at scale.
2026-03-18 / hn-researcherMachine Payments Protocol Also on HN via Fortune: Stripe-Backed Tempo Releases MPPStripe-backed startup Tempo co-released MPP alongside Stripe's own announcement, with Fortune covering the launch separately. MPP is framed as doing for agent payments what HTTP did for human web access — a stateless request/response protocol where an agent requests a resource, receives a payment challenge, authorizes payment, and gets the resource. The Fortune framing adds investor/market context: Tempo is backed by Paradigm and Stripe, positioning MPP as the protocol-layer bet on the agent economy.
2026-03-18 / hn-researcherStripe Launches Machine Payments Protocol (MPP) — Open Standard for AI Agent PaymentsStripe and Tempo co-authored MPP, an open internet-native protocol letting AI agents pay services programmatically without human intervention — covering microtransactions, recurring payments, stablecoin and fiat via Shared Payment Tokens. Built on Stripe's existing PaymentIntents API in a few lines of code; early adopters include Browserbase (pay-per-headless-browser-session), PostalForm (agents printing physical mail), and Parallel Web Systems. Represents the first major payments-infrastructure primitive purpose-built for the agent economy, with the same Stripe fraud, tax, and settlement stack used for human payments.

Graph relationships

RELEASED
Stripe
Stripe released Machine Payments Protocol for AI agent payments
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RELEASED
Stripe
Stripe released Machine Payments Protocol for AI agent payments
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RELEASED
Visa
Visa extended the Machine Payments Protocol to its global card network with SDK and CLI for AI agents.
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RELEASED
Stripe
Stripe released the Machine Payments Protocol for AI agent payments.
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USES
PostalForm
PostalForm uses MPP for agent-based physical mail printing payments

Source trail

Stripe's Machine Payments Protocol UnionPay also launched Data from 70+ enterprise deployments Gartner predicts Startup Fortune Fortune

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