MPP
Roadmap

What we're building

3SDKs shipped
54+tests written
1dsince launch
v2protocol target
Legend Done In progress Planned
Phase 1ShippedMay 2026

Foundation

Core protocol implementation across three languages, interactive demo, and public launch.

  • HTTP 402 protocol (Payment-Request / Payment-Receipt)
  • TypeScript SDK v1.1.1 - published to npm
  • Python SDK v1.1.0 - published to PyPI
  • Go SDK - published to pkg.go.dev
  • Playground (mpptestkit.com) - interactive 402 flow demo
  • Auton - AI agent payment demo (beta)
  • Devnet & testnet airdrop with exponential back-off
  • Lifecycle callbacks (onStep events)- enabling real-time payment status updates
  • Typed error classes per SDK
  • 54 unit + integration tests (TypeScript)
  • Playwright E2E tests for playground
Phase 2In ProgressJune 2026

Developer Experience

Sharper tooling, broader SDK coverage, and a CLI for faster local iteration.

  • Rust SDK - crates.io release
  • CLI tool - `npx mpp-test <url>` for instant endpoint testing
  • SDK v1.2 - configurable confirmation levels & improved airdrop retry
  • Playground network switcher (devnet → testnet toggle)
  • Expanded code recipes (Next.js API routes, Express, FastAPI, Gin)
  • Dev.to tutorial series - one article per SDK
  • VSCode extension - inline payment flow hints
Phase 3PlannedJuly – August 2026

Ecosystem & Agent Integrations

First-class support for AI agent frameworks and popular web frameworks.

  • LangChain tool integration (TypeScript + Python)
  • OpenAI function-call / tool-call adapter
  • Auton v2 - real agent execution (not mock)
  • Go - Gin, Echo, and Fiber middleware packages
  • Python - Django middleware support
  • Webhook notifications on payment events
  • SDK registry - discoverable MPP-compatible APIs
Phase 4PlannedSeptember – October 2026

Production & Mainnet

Hardening the protocol for real-money deployments, analytics, and mobile wallets.

  • Analytics dashboard - per-endpoint revenue & request metrics
  • Payment audit logs - per-client, per-signature history
  • Mainnet production guide + amount approval safeguards
  • Phantom / Backpack wallet integration (browser extension)
  • WalletConnect support for mobile clients
  • Multi-recipient support - fee splitting on-chain
  • Rate-limiting middleware - per-client request budgets
Phase 5PlannedQ1 2027

Protocol v2

Extending the protocol with richer payment models and cross-chain reach.

  • Batch payments - single signature unlocks multiple endpoints
  • Subscription tiers - pre-pay weekly / monthly credit
  • Cross-chain support - Ethereum L2 (Base, Arbitrum)
  • Formal protocol spec - IETF-style RFC draft
  • Protocol v2 SDKs - backwards-compatible upgrade path

Roadmap is subject to change based on community feedback and protocol discoveries. Have a feature request? Open an issue on GitHub.