Stripe and Tempo just launched the Machine Payments Protocol (MPP) — an open standard that lets AI agents complete transactions without any human involvement.

The Problem It Solves

Today's payment systems were built for humans. For an agent to make a purchase, it typically needs to: create an account, navigate a pricing page, pick a subscription tier, enter payment details, and confirm billing — steps that almost always require someone to step in.

That's been the last hard barrier to fully autonomous agent workflows.

How MPP Works

The protocol is elegantly simple:

  1. An agent requests a resource (an API, an MCP service, any HTTP endpoint)
  2. The service returns a payment request
  3. The agent authorizes payment, and the resource is delivered

The entire exchange happens programmatically. No account creation, no forms, no human in the loop.

Payment methods supported: stablecoins and fiat (cards, buy now pay later). For Stripe merchants, agent payments show up in the Dashboard exactly like any other transaction — same settlement flow, same fraud protection, tax calculation, and accounting integrations.

Real Businesses Running on It Today

  • Browserbase: agents spin up headless browser instances and pay per session
  • PostalForm: agents pay to print and mail physical letters
  • Prospect Butcher Co.: agents order sandwiches for delivery anywhere in New York
  • Stripe Climate: agents make programmatic donations to carbon removal projects

The Code

Stripe users can accept MPP payments in a few lines:

const paymentIntent = await stripe.paymentIntents.create({
  amount: 1,
  currency: 'usd',
  payment_method_types: ['crypto'],
  payment_method_data: { type: 'crypto' },
  confirm: true,
});

If you're already on Stripe, the lift to enable this is minimal.

Why This Matters for Solo Founders

The agent autonomy boundary just moved. Before MPP, agents could help you do things — research, write, generate. With MPP, agents can help you buy things, pay for services, and close transactions — all without waking you up.

For a one-person company, that's a meaningful shift. A single agent stack can now autonomously handle a purchase loop end-to-end: find the vendor, compare options, place an order, pay, confirm delivery.

Stripe is also launching an Agentic Commerce Suite alongside this, including ACP (Agentic Commerce Protocol) and MCP integrations. They're clearly betting that agents will become a distinct category of "users" in the internet economy.

This is infrastructure. And the founders who build on top of it early will have a real advantage.