A universal framework designed to allow agents and other utilities to transparently make machine payments using web infrastructure.
faremeter is a growing TypeScript project in the AI payments / x402 ecosystem, focused on machine-payments, mpp, x402. It currently has 68 GitHub stars and 24 forks, and sits alongside related tools like inflow-node, mcp-protocol-tester, agent-commerce-protocol.
Official TypeScript/Node.js SDKs for the InFlow payments platform - x402 and MPP (Machine Payments Protocol) integration for sellers and buyers.
Universal test suite for MCP servers — dual-rail payment testing (x402 + MPP/Tempo), 402 challenge validation, security audit, load testing. Works with any MCP-compatible server.
ACE (Agent Commerce Exchange) — Open protocol for agent-native commerce: discovery, trust, and catalog for the agentic web. Payment-agnostic (x402, MPP, Stripe).