metatron-mcp-server
Metatron Agent #23984 - ERC-8004 verified AI agent with MCP + x402 payments on Base
In the AI payments ecosystem
metatron-mcp-server is an early-stage JavaScript project in the AI payments / x402 ecosystem. It currently has 0 GitHub stars and 0 forks.
Metatron MCP Server — Agent #23984
Smart Contract Security Auditor with ERC-8004/x402 payment monetization.
Features
- Smart Contract Audits — Slither-style static analysis for EVM contracts
- x402 Payment Protocol — USDC payments on Base chain
- MCP Integration — Full Model Context Protocol support via SSE
- Multi-chain Support — Ethereum, Base, Polygon, Arbitrum, Optimism, BSC, Avalanche
Pricing
| Service | Price | Description |
|---|---|---|
| Contract Audit | $100 USDC | Full security audit with verified source analysis |
| Quick Scan | $10 USDC | Analyze provided Solidity source code |
Endpoints
| Endpoint | Method | Description |
|---|---|---|
/health |
GET | Service health and status |
/x402/pricing |
GET | x402 payment information |
/x402/verify |
POST | Verify payment transaction |
/x402/status/:txHash |
GET | Check payment status |
/api/contract-audit |
POST | Full audit (requires payment) |
/api/quick-scan |
POST | Quick scan (requires payment) |
/api/preview |
POST | Free preview (summary only) |
/mcp/sse |
GET | MCP SSE endpoint |
Vulnerability Checks
- Reentrancy
- Integer Overflow/Underflow
- Unchecked Call Returns
- Selfdestruct
- Delegatecall to Untrusted Callee
- tx.origin Authentication
- Access Control Issues
- Floating Pragma
- Timestamp Dependence
Quick Start
# Install dependencies
npm install
# Set Etherscan API key (optional but recommended)
export ETHERSCAN_API_KEY=your_key_here
# Start server
npm start
Environment Variables
| Variable | Description | Default |
|---|---|---|
PORT |
Server port | 3402 |
ETHERSCAN_API_KEY |
Etherscan API key for fetching verified source | (none) |
Payment Flow (x402)
- Client calls
/api/contract-auditwithout payment header - Server returns 402 with payment instructions
- Client sends USDC to wallet on Base chain
- Client retries with
X-Payment: <txHash>header - Server verifies on-chain payment
- Server returns audit results
Files
index.js— Main server with MCP and REST endpointscontract-audit.js— Static analysis engineverify-payment.js— x402 payment verification moduleagent-metadata.json— ERC-8004 agent metadatacloudflare-tunnel-setup.ps1— Stable tunnel setup script
Wallet
Address: 0x11B185ceFcB2A001FFDddf0f226437D16EbF5437
Network: Base (Chain ID 8453)
Currency: USDC (0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913)
Agent Info
- Agent ID: 23984
- Name: Metatron
- Nostr:
npub1jhfp70rew48zlk4l53zr7cuxef76w722pxfgpsa2yxjdrgfpx7csgsj69f - Lightning:
metatronscribe@coinos.io
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