RugShield 402

RugShield 402 🛡️ — Open-Source MCP Server for DEX Security & Honeypot Detection

This repository contains the complete open-source Model Context Protocol (MCP) server implementation of RugShield 402. It equips LLMs, autonomous trading agents, and IDEs (Claude Desktop, Cursor, Windsurf) with tools to simulate token buys/sells, analyze honeypot traps, calculate exact transfer tax rates, and verify DEX liquidity depth on Base and EVM networks.

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🛠️ MCP Tools Implemented

This MCP server provides the following tools via standard stdio and streamable HTTP transports:

Tool Name	Description	Key Parameters
rugshield_pre_swap_scan	Comprehensive pre-trade swap simulation: detects honeypots, malicious transfer limits, and liquidity drain traps.	token_address (string, 42-char hex), simulate_sell (boolean, default: true)
check_honeypot	Decompiles token bytecode and executes buy/sell test against Base RPC. Returns exact buy/sell tax in basis points (bps), blacklist checks, and risk score.	token_address (string, 42-char hex)
verify_liquidity_lock	Analyzes DEX pool reserves (Uniswap v3, Aerodrome), LP token lock status, bonding curve state, and total USD liquidity depth.	token_address (string, 42-char hex)
detect_holder_clusters	Maps top token holder distributions, detects Sybil wallet clusters, and computes developer concentration risk.	token_address (string, 42-char hex)

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🚀 Running from Source (Local Stdio Transport)

You can run this MCP server locally on your machine from source code using Node.js and the Model Context Protocol SDK.

1. Installation & Build

# Clone the open-source repository
git clone https://github.com/ak10082247-max/rugshield-402.git
cd rugshield-402

# Install dependencies
npm install

# Build the TypeScript source code
npm run build

2. Configure with Claude Desktop

Add this server to your claude_desktop_config.json:

• macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
• Windows: %APPDATA%\Claude\claude_desktop_config.json

{
  "mcpServers": {
    "rugshield-402": {
      "command": "node",
      "args": [
        "/absolute/path/to/rugshield-402/dist/mcp/server.js"
      ]
    }
  }
}

Or run directly with tsx during development without building:

{
  "mcpServers": {
    "rugshield-402": {
      "command": "npx",
      "args": [
        "-y",
        "tsx",
        "/absolute/path/to/rugshield-402/src/mcp/server.ts"
      ]
    }
  }
}

3. Configure with Cursor or Windsurf

Add to your workspace .cursor/mcp.json or Windsurf MCP settings:

{
  "mcpServers": {
    "rugshield-402": {
      "command": "node",
      "args": ["dist/mcp/server.js"]
    }
  }
}

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🌐 Connecting to the Hosted Remote MCP Endpoint

If you prefer connecting to a hosted cloud instance without local dependencies, RugShield is deployed 24/7 on high-availability cloud infrastructure:

• Remote MCP URL: https://rugshield-402.onrender.com/mcp
• Protocol: Model Context Protocol (Streamable HTTP / SSE JSON-RPC 2.0)
• Discovery Manifest: https://rugshield-402.onrender.com/.well-known/mcp/server-card.json
• x402 Manifest: https://rugshield-402.onrender.com/.well-known/x402.json

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🏛️ Simulation Engine Architecture

sequenceDiagram
    autonumber
    actor LLM as Claude / Agent / Cursor
    participant MCP as RugShield MCP Server (Local / Remote)
    participant Simulator as EVM Bytecode Simulator
    participant Base as Base Mainnet RPC
    participant DEX as Aerodrome / Uniswap v3

    LLM->>MCP: tools/call ("rugshield_pre_swap_scan", { token_address })
    MCP->>Simulator: Fork State & Simulate Buy/Sell
    Simulator->>Base: Fetch Bytecode, Balances & Storage Slots
    Simulator->>DEX: Simulate Swap on Liquidity Pool
    Simulator-->>MCP: Honeypot Verdict, Tax Rates, Risk Score
    MCP-->>LLM: Structured JSON Analysis & Safety Attestation

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📦 Developer SDK & Framework Integrations

RugShield is packaged for automated multi-agent frameworks with 100% gasless autonomous payment settlement ($0 ETH / $0 SOL required):

1. Autonomous Agent Auto-Pay Quickstart (TypeScript)

Wrap standard fetch with @x402/fetch to automatically handle HTTP 402 challenges, sign EIP-712 transfer authorizations on Base, and retry in under 15ms:

npm install @x402/fetch @x402/core @x402/evm viem

import { wrapFetchWithPayment } from "@x402/fetch";
import { x402Client } from "@x402/core/client";
import { ExactEvmScheme } from "@x402/evm/exact/client";
import { privateKeyToAccount } from "viem/accounts";

const account = privateKeyToAccount(process.env.AGENT_PRIVATE_KEY as `0x${string}`);
const client = new x402Client();
client.register("eip155:8453", new ExactEvmScheme(account));

// 1-line wrapper automatically signs & unlocks full 100% honeypot simulation
const xFetch = wrapFetchWithPayment(fetch, client);
const res = await xFetch("https://rugshield-402.onrender.com/v1/scan", {
  method: "POST",
  headers: { "Content-Type": "application/json" },
  body: JSON.stringify({ token_address: "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", simulate_sell: true }),
});
const report = await res.json();
console.log("Full Verified Analysis:", report);

2. Autonomous Agent Auto-Pay Quickstart (Python)

Using the built-in Python client (sdk/python/rugshield.py):

from rugshield import RugShieldClient

# Pass your agent wallet private key - automatically handles 402 challenges & EIP-712 signing
client = RugShieldClient(private_key="0xYOUR_AGENT_PRIVATE_KEY")
report = client.scan_token("0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913")

print(f"Honeypot: {report.get('is_honeypot')}")
print(f"Exact Sell Tax: {report.get('sell_tax_bps')} bps")

3. ElizaOS Autonomous Agent Plugin

npm install @kurox_real/plugin-rugshield-402

import { rugshieldPlugin } from "@kurox_real/plugin-rugshield-402";

export const character = {
  name: "AutonomousDeFiTrader",
  plugins: [rugshieldPlugin],
};

4. Coinbase AgentKit (LangChain / Python / TS)

npm install @kurox_real/agentkit-rugshield-402

import { rugshieldActionProvider } from "@kurox_real/agentkit-rugshield-402";
import { AgentKit } from "@coinbase/agentkit";

const agentKit = await AgentKit.from({
  actionProviders: [rugshieldActionProvider()],
});

5. Direct REST API (cURL)

# Returns 402 with structured 50% free preview + unlock instructions:
curl -X POST https://rugshield-402.onrender.com/v1/scan \
  -H "Content-Type: application/json" \
  -d '{"token_address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913", "simulate_sell": true}'

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💳 Optional Cloud Subscriptions (MCPize / Apify)

For teams seeking turnkey managed infrastructure with flat monthly credit card billing rather than self-hosting:

• MCPize Directory: Connect via mcpize.com/dashboard
• Apify Pay-Per-Event: Actor distribution on apify.com

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📄 License

This open-source project is licensed under the MIT License — see the LICENSE file for details.