ROADMAP.md

PayMCP - Roadmap

Status: 100% Complete | Updated: April 4, 2026

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COMPLETED

MCP Server

• Core Structure: 100%

  • Server setup with @modelcontextprotocol/sdk
  • STDIO transport configuration
  • TypeScript configuration
  • Dependencies installed and compiled

• Tool Implementation: 100%

  • summarize_url tool registered
  • URL fetching with axios
  • HTML parsing with cheerio
  • OpenRouter integration
  • Error handling (no charge on errors)

• Database Layer: 100%

  • Supabase client setup
  • logToolCall function

• Payment Gate: 100%

  • Payment requirement structure
  • On-chain USDC verification via viem
  • Base Sepolia testnet configured

• HTTP Server: 100%

  • Express server with x402-express middleware
  • HTTP 402 payment flow
  • Health check endpoint
  • Browser-based payment UI (payment.html)

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Completed Phases

Phase	Description	Status
Phase 1	MCP Server core	100%
Phase 2	Summarizer Tool (fetch + parse + LLM)	100%
Phase 3	x402 Payment Integration	100%
Phase 4	Supabase Logging	100%
Phase 5	HTTP Payment Server	100%
Phase 6	Payment UI (payment.html)	100%
Phase 7	Testing & Polish	100%

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Future Enhancements

• Multi-tool support behind the payment gate
• Subscription billing tiers
• Production deployment (Railway / similar)
• Mainnet deployment

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Quick Links

• Supabase Dashboard: https://supabase.com/dashboard
• OpenRouter: https://openrouter.ai
• Base Sepolia Faucet: https://www.coinbase.com/faucets/base-ethereum-sepolia-faucet
• x402 Documentation: https://x402.org
• MCP SDK: https://github.com/modelcontextprotocol/typescript-sdk