Vercel App Mpp is the public gateway for the Machine Payments Protocol (MPP), a stablecoin-based payment layer that lets AI agents and other automated clients pay per request with a Tempo stablecoin instead of holding API keys. Hosted at https://mpp-gateway.vercel.app/, the gateway sits in front of more than forty third-party APIs and currently exposes 88 endpoints across 11 categories and 5 live services.
The flow is built around HTTP 402 Payment Required. A client makes a normal HTTP request to an MPP endpoint; if payment is required the gateway returns a 402 with the price and payment instructions. A Tempo CLI running on the client signs and settles the payment, the gateway proxies the call to the upstream API, and the client receives the response plus a signed Payment-Receipt. An AI agent can reach Stripe, GitHub, Twilio, Plaid, Massive (stocks) and Stripe Climate without ever storing a secret API key.
Each endpoint lists its price in USD. The site publishes an llms.txt and an All Routes page so AI agents can discover endpoints programmatically. Vercel App Mpp is positioned for AI agents, automation scripts, MCP servers and developer tooling that needs to reach paid third-party APIs without API key management. It runs on Vercel's edge network, charges transparent per-request prices, and ships with a public GitHub repository.
Get Face Report is an AI-powered facial analysis and personal styling platform that helps users understand their facial features
Antique Scanner reads hallmarks, maker's marks and wear in your photos — and returns an honest identification with age and value ranges.
Turn Flat Images Into Editable Layers.
Turn any image into editable layers
Longruay - Official site: US$100 million, 30 days, one daily decision with AI briefings from Mira.
Life Path Calculator - trustworthy free numerology: verifiable math, honest Master Numbers, AI reading with refunds.
