Research

MPP / Tempo Research

Future compatibility research for Machine Payments Protocol (MPP) and Tempo — not a live feature.

● Research only — not live

Current focus

API20 currently focuses on x402-style API discovery and HTTP 402 inspection on Base using USDC payment flow exploration.

MPP / Tempo compatibility is listed as future research, not a live feature. We are not claiming support for MPP or Tempo today.

What is MPP?

MPP (Machine Payments Protocol) refers to emerging standards for machine-to-machine payments. API20 tracks MPP/Tempo as potential future compatibility targets for mapping machine payment systems into API discovery and agent-ready workflows.

Research goals

  • Understand how MPP/Tempo models compare to x402 HTTP 402 flows
  • Explore metadata mapping for paid API registry entries
  • Document compatibility questions for agent workflows
  • Avoid overclaiming — research notes only until validated

Safe positioning

API20 currently focuses on x402-style API discovery and HTTP 402 inspection on Base. MPP / Tempo compatibility is listed as future research, not a live feature.

View full roadmap

Disclaimer: API20 is an independent experimental project. It is not affiliated with Coinbase, Base, Coinbase Developer Platform, Tempo, Stripe, or any official x402, MCP, or MPP organization.