x402 from zero

Machine Payments Protocol

Stripe and Tempo’s rival machine-payments protocol (MPP), live since 18 March and backwards-compatible with x402.

Checked 11 October

Our view

Measured MPP use was small (about $25,000 over 115,000 transactions to 21 April, per Visa), but its threat is distribution: Stripe’s docs say machine payments work best with MPP and list x402 on Base only, so a Stripe merchant who only wants stablecoins is steered away from Base. AWS and Cloudflare already support both protocols. The research did not score rivals; these labels are the site’s reading of the dated evidence.

Facts

Role
Rival protocol
How serious
Serious builder
Momentum
Accelerating
Trend-hopping
Not scored
Funding
Tempo: $500M Series A at a $5B valuation (as reported); incubated by Stripe and Paradigm
On Base
Not on Base
How often we check
Every week

What these ratings mean

In numbers

181

commits to its public code in the 30 days to 14 October. Its last release, v0.15.1, came out on 12 October.

Code from tempoxyz/mpp and 1 more repository on GitHub. As of 14 October 2026.

People

  • Tempo

    Official account

    On X: @tempo

  • Patrick Collison

    CEO, Stripe

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