ContractScan

Scan any smart contract for security risks in seconds

100% Client-Side No Backend Required Free 0 scans performed

What We Check

Basic Scan

Free
  • Contract verification (Sourcify)
  • Proxy detection (EIP-1967)
  • Owner / admin analysis
  • Token metadata (ERC20)
  • Bytecode risk patterns
  • Honeypot indicators
  • DEX liquidity check
  • SELFDESTRUCT detection
  • Risk score (0-100)

Deep Scan

Free was $2
  • Everything in Basic
  • Full source code analysis
  • 11 vulnerability pattern checks
  • Reentrancy detection
  • Hidden owner functions
  • Safety feature detection
  • Compiler info & LOC count

Requires Sourcify-verified source code

Built For

🤖

Trading Bots

Pre-screen tokens via API before automated buys.

🛡

DeFi Users

Check contracts before you interact. Catch honeypots early.

🔧

Developers

Integrate security checks into your dApp or workflow.

REST API

Self-host with Docker or use our hosted endpoint. No signup. No API key.

# Free basic scan curl https://your-instance.onrender.com/scan?address=0xCONTRACT&chain=base # Deep scan (source code analysis) curl https://your-instance.onrender.com/scan?address=0xCONTRACT&chain=base&mode=deep
Support ContractScan — Send a tip
0x8C0083EE1a611c917E3652a14f9Ab5c3a23948D3
Base / Ethereum / Any EVM chain · ETH, USDC, or any token · Click to copy
View on GitHub →

Self-host with Docker · One-click deploy to Render.com · MIT License