MPP explorer
The Machine Payments Protocol (Stripe + Tempo, March 2026) is the second open standard for machine-to-machine payments. This is the live MPP service catalog, indexed from the protocol's public registry — and OpenSpender is being built to speak both standards.
139
mpp services indexed
137
active
9
top categories
tempo · stripe · evm
payment methods
8 matching
| service | categories | payment methods | status |
|---|---|---|---|
Browserbase — Headless browser sessions, web search, and page fetching for AI agents. mpp.browserbase.com | webcomputesearch | tempostripe | active |
Build With Locus — Deploy containerized services, Postgres, Redis, and custom domains on demand — all via REST API. Pay-per-use credit billing. mpp.buildwithlocus.com | compute | tempo | active |
Judge0 — Online code execution — run source code in 60+ programming languages with sandboxed isolation. judge0.mpp.paywithlocus.com | compute | tempo | active |
ScreenshotOne — Website screenshot API — capture any URL, HTML, or markdown as PNG, JPEG, WebP, or PDF. Full-page, element selection, dark mode, ad blocking, and more. screenshotone.mpp.paywithlocus.com | compute | tempo | active |
Baseten Model APIs — Baseten is a high-performance inference platform for running open source LLMs. This API provides an OpenAI-compatible chat completions endpoint, so it works as mpp.orthogonal.com | aicompute | tempo | active |
Notte — Browser automation API for AI agents. Start browser sessions, run AI agents, scrape webpages, and automate browser tasks with headless Chrome/Firefox. Features mpp.orthogonal.com | webcompute | tempo | active |
KERNEL — buy a KERNEL stealth headful chromium browser for 30 minutes, paid by card or link. no account or api key needed. connect over cdp with playwright or puppeteer. api.onkernel.com | webcompute | stripe | active |
Modal — Serverless GPU compute for sandboxed code execution and AI/ML workloads. modal.mpp.tempo.xyz | computeai | tempo | active |
x402 vs MPP
| x402 | MPP | |
|---|---|---|
| author / steward | Coinbase → Linux Foundation | Stripe + Tempo |
| mechanism | HTTP 402 challenge, pay-per-request | IETF Payment HTTP auth, session-based |
| rails | USDC (Base, Solana, more) | USDC on Tempo, card via Visa, Lightning |
| accounts | none — wallet is identity | Stripe compliance stack built in |
| transports | HTTP | HTTP, MCP, JSON-RPC |
| compatibility | MPP is backwards-compatible with x402 — MPP clients can pay x402 services, so x402-first services reach both worlds | |
OpenSpender + MPP
The OpenSpender gateway ships x402-first (reachable by MPP clients via backwards compatibility). Native MPP endpoints — session payments, card rails, MCP transport — are on the roadmap. Protocol sources: mpp.dev · specifications.