MPCP Reference Implementation

This repository provides the reference implementation of the Machine Payment Control Protocol (MPCP).

For the canonical protocol specification — overview, architecture, protocol definitions, and conceptual guides — see mpcp-spec.

What This Repo Provides

• SDK — Create and verify MPCP artifacts (PolicyGrant, SBA, SPA, SettlementIntent)
• Verifier — Settlement verification pipeline
• CLI — mpcp verify and mpcp policy-summary
• Service API — Backend facade for issueBudget, verifySettlementService, anchorIntent
• Examples — Parking, EV charging, machine commerce

Quick Start

npm install mpcp-service
npm run build
npm run example:parking
npx mpcp verify examples/parking/settlement-bundle.json --explain

→ Full quickstart

Documentation

Section	Description
Quickstart	Get running in 5 minutes
Implementation	SDK, verifier, conformance
Reference	API reference (SDK, Service, CLI)
Examples	Parking, charging, fleet

Specification

The MPCP specification is maintained in the mpcp-spec repository.