Contract Security Scanner

Scans Base L2 smart contracts for security risks. Risk score 0-100, detects backdoors & proxies.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "contract-security-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "contract-security-scanner"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Contract Security Scanner — MCP Server

Scan any Base L2 smart contract for security risks directly from your AI assistant.

3 tools exposed:

scan_contract — Full security scan (source verification, risky selectors, age, activity)
batch_scan — Compare up to 5 contracts side by side
interpret_risk — Get an actionable recommendation (SAFE / CAUTION / HIGH_RISK / DO_NOT_USE)

Risk score: 0-100. Analyzes: mint/blacklist/backdoor functions, proxy patterns, source verification, contract age, transaction activity.

Installation

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

config.json

{
  "mcpServers": {
    "contract-scanner": {
      "command": "node",
      "args": ["/Users/sam/Desktop/samDev/p8/mcp/server.js"]
    }
  }
}

Restart Claude Desktop. The tools appear automatically.

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

config.json

{
  "mcpServers": {
    "contract-scanner": {
      "command": "node",
      "args": ["/Users/sam/Desktop/samDev/p8/mcp/server.js"]
    }
  }
}

Cline (VS Code extension)

Open Cline settings → MCP Servers → Add server
Set type: stdio
Command: node /Users/sam/Desktop/samDev/p8/mcp/server.js

Any MCP client (generic)

The server uses stdio transport — just pipe JSON-RPC messages:

bash

node /Users/sam/Desktop/samDev/p8/mcp/server.js

Usage examples

Once connected, just ask your AI assistant naturally:

Code

"Scan this contract before I approve: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"

"Compare the risk of these 3 Aave clones: 0x... 0x... 0x..."

"Is this token safe to buy? 0x4ed4e862860bed51a9570b96d89af5e1b0efefed"

What gets analyzed

Check	Source
Source code verified?	BaseScan API
Mint / burn functions	Bytecode selector scan
Pause / freeze	Bytecode selector scan
Blacklist / whitelist	Bytecode selector scan
Backdoors (rescueTokens, withdrawAll)	Bytecode selector scan
Upgradeable proxy	BaseScan + delegatecall detection
Contract age	BaseScan transaction history
Activity level	BaseScan recent txs

Risk scoring

Score	Label	Meaning
0-9	SAFE	No red flags
10-29	LOW	Minor concerns
30-49	MEDIUM	Elevated risk — review before interacting
50-69	HIGH	Significant risk — small amounts only
70+	CRITICAL	Avoid — potential rug or backdoor

Technical notes

Chain: Base L2 only (https://mainnet.base.org)
API: BaseScan free tier (no key needed for basic checks; set BASESCAN_API_KEY env var for full source analysis)
No wallet needed: read-only RPC calls only
Latency: ~2-5s per contract (network dependent)

Built on Base. Agent wallet: 0x804dd2cE4aA3296831c880139040e4326df13c6e

Read the full README →View source on GitHub →

Related MCP Servers

View all in Legal View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Contract Security Scanner

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "contract-security-scanner": { "command": "npx", "args": ["-y", "Contract Security Scanner"] } }

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Technical Specs & Signals

CategoryLegal

29Quality signal: Emerging · 29/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

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More in ⚖️ Legal →Best MCP servers for Legal →Alternatives to Contract Security Scanner →Install in Claude Desktop Install in Cursor Install in VS Code

Contract Security Scanner

Scans Base L2 smart contracts for security risks. Risk score 0-100, detects backdoors & proxies.

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "contract-security-scanner": {
      "command": "npx",
      "args": [
        "-y",
        "contract-security-scanner"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Contract Security Scanner — MCP Server

Scan any Base L2 smart contract for security risks directly from your AI assistant.

3 tools exposed:

scan_contract — Full security scan (source verification, risky selectors, age, activity)
batch_scan — Compare up to 5 contracts side by side
interpret_risk — Get an actionable recommendation (SAFE / CAUTION / HIGH_RISK / DO_NOT_USE)

Risk score: 0-100. Analyzes: mint/blacklist/backdoor functions, proxy patterns, source verification, contract age, transaction activity.

Installation

Claude Desktop

Add to ~/Library/Application Support/Claude/claude_desktop_config.json:

config.json

{
  "mcpServers": {
    "contract-scanner": {
      "command": "node",
      "args": ["/Users/sam/Desktop/samDev/p8/mcp/server.js"]
    }
  }
}

Restart Claude Desktop. The tools appear automatically.

Cursor

Add to .cursor/mcp.json (project) or ~/.cursor/mcp.json (global):

config.json

{
  "mcpServers": {
    "contract-scanner": {
      "command": "node",
      "args": ["/Users/sam/Desktop/samDev/p8/mcp/server.js"]
    }
  }
}

Cline (VS Code extension)

Open Cline settings → MCP Servers → Add server
Set type: stdio
Command: node /Users/sam/Desktop/samDev/p8/mcp/server.js

Any MCP client (generic)

The server uses stdio transport — just pipe JSON-RPC messages:

bash

node /Users/sam/Desktop/samDev/p8/mcp/server.js

Usage examples

Once connected, just ask your AI assistant naturally:

Code

"Scan this contract before I approve: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"

"Compare the risk of these 3 Aave clones: 0x... 0x... 0x..."

"Is this token safe to buy? 0x4ed4e862860bed51a9570b96d89af5e1b0efefed"

What gets analyzed

Check	Source
Source code verified?	BaseScan API
Mint / burn functions	Bytecode selector scan
Pause / freeze	Bytecode selector scan
Blacklist / whitelist	Bytecode selector scan
Backdoors (rescueTokens, withdrawAll)	Bytecode selector scan
Upgradeable proxy	BaseScan + delegatecall detection
Contract age	BaseScan transaction history
Activity level	BaseScan recent txs

Risk scoring

Score	Label	Meaning
0-9	SAFE	No red flags
10-29	LOW	Minor concerns
30-49	MEDIUM	Elevated risk — review before interacting
50-69	HIGH	Significant risk — small amounts only
70+	CRITICAL	Avoid — potential rug or backdoor

Technical notes

Chain: Base L2 only (https://mainnet.base.org)
API: BaseScan free tier (no key needed for basic checks; set BASESCAN_API_KEY env var for full source analysis)
No wallet needed: read-only RPC calls only
Latency: ~2-5s per contract (network dependent)

Built on Base. Agent wallet: 0x804dd2cE4aA3296831c880139040e4326df13c6e

Read the full README →View source on GitHub →

Related MCP Servers

View all in Legal View all alternatives

Reviews

No reviews yet — be the first to share how this listing worked for you.

Frequently Asked Questions about Contract Security Scanner

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "contract-security-scanner": { "command": "npx", "args": ["-y", "Contract Security Scanner"] } }

AllMCPs Directory Badge

Full Badge Customizer

Showcase your server listing on GitHub or your project documentation. Embed this dynamic SVG badge to highlight official listing status and live engagement.

Badge Style:

Live Dynamic SVG Preview

Markdown (GitHub README)

[![AllMCPs](https://allmcps.com/api/badge/contract-security-scanner?style=directory)](https://allmcps.com/mcp/contract-security-scanner)

HTML Embed

<a href="https://allmcps.com/mcp/contract-security-scanner"><img src="https://allmcps.com/api/badge/contract-security-scanner?style=directory" alt="Contract Security Scanner on AllMCPs" /></a>

Technical Specs & Signals

CategoryLegal

29Quality signal: Emerging · 29/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

★ Featured

Moxie Docs MCP

MCP & Agent Skills for Automated Documentation, and codebase conventions + context

Explore Server →

Own this project?

Free dofollow backlink: add your website and place the AllMCPs badge on it — no claim needed. We detect it automatically and keep it verified as long as the badge stays live.

Claim & get free dofollow

Share & Embed

Add our SVG badge (dark/light directory styles) or embeddable widget to your site.

Explore more

More in ⚖️ Legal →Best MCP servers for Legal →Alternatives to Contract Security Scanner →Install in Claude Desktop Install in Cursor Install in VS Code