Secure your smart contract with a trusted audit.
EVM Smart Audit is an automated smart contract security audit for Solidity and every major EVM chain: static analysis, 20+ vulnerability detectors and AI deep analysis over your contracts, delivered as a forensic, graphical report you can act on.
Start your auditevery EVM chain
BNB Chain
Ethereum
Polygon
Arbitrum
Optimism
Base
Avalanche
Linea
Scroll
Blast
Mantle
opBNB
Taiko
Unichain
Berachain
Sonic
World Chain
Celo
Gnosis
Fantom
Danny Chain
VORA ChainWe cover almost every contract on Web3.
20+ networks: Ethereum, BSC, Arbitrum, Base, and custom explorers.
By verified address, pasted Solidity, or a full project .zip.
From a single file to multi-contract, multi-file systems.
Comprehensive smart-contract security.
Smart Contract Auditing
AST-based detectors examine your Solidity for reentrancy, access-control flaws, unsafe delegatecall, and 20+ vulnerability classes, all mapped to the SWC Registry.
Start auditAI Deep Analysis
AI reviews business logic, tokenomics traps, honeypot patterns, and economic attack surfaces that static tools miss, cross-checked and deduplicated against the static pass.
Start auditStandards Coverage
Every audit is graded against the SWC Registry and the OWASP Smart Contract Top 10, so you can see exactly what was checked and what passed.
Start auditGraphical PDF Reports
Risk gauge, severity breakdown, per-finding attack-path diagrams, code mini-maps, and remediation, all in a downloadable report.
Start auditGas Optimization
Beyond security, the engine flags storage packing, calldata vs memory, custom errors, and loop patterns that quietly cost your users gas.
Start auditAny Source, Any Chain
Audit by verified contract address across every major EVM chain, paste Solidity directly, or upload a .sol file or full project .zip.
Start auditSample reports, all three depths.
Generated live from NexusFinance — a 9-file, 7-contract DeFi protocol seeded with real vulnerability classes. 90 findings across a 58-page full report. Download any style free.
One audit, three depths.
Every plan is a one-off audit. Pick the depth of analysis and deliverables you need.
- ✓1 contract
- ✓20+ static AST detectors
- ✓SWC Registry + OWASP coverage
- ✓Summary PDF report
- ✕AI deep analysis
- ✕Per-finding attack paths & code map
- ✕Slither integration
- ✕Combined full report
- ✓Up to 5 contracts / full project (.zip)
- ✓Everything in Starter
- ✓AI deep analysis
- ✓Detailed report: attack paths + code map
- ✓Gas optimization findings
- ✕Slither integration
- ✕Combined full report
- ✕Re-audit after fixes
- ✓Unlimited contracts
- ✓Everything in Pro
- ✓Slither integration
- ✓Combined report (Summary + Detailed in one PDF)
- ✓Proxy → implementation resolution
- ✓Re-audit after fixes
- ✓Priority support
- ✓Multi-chain incl. custom explorers
Point it at a contract.
Paste Solidity, drop in a verified address, or upload a project, then get a graphical report in seconds.
Everything about auditing, in one place.
What audits cover, what they cost, how to read one, and what to check before you trust a contract with money.
What an audit covers, how the engine works, and what lands in your report.
What audits actually cost in 2026, why quotes range from $150 to six figures, and how to read one.
Run a real scan at no cost on any supported testnet — no card, no sign-up.
The Solidity-specific bug classes we detect, with the code patterns that trigger each one.
How audit firms differ, what separates a good auditor from a logo, and where automation fits.
ERC-721 and ERC-1155 failure modes: mint logic, royalties, reveal, and metadata risk.
What an automated engine catches, what it cannot, and how the auto-generated report is built.
The 20 detector classes we run, in plain language, with the fix for each.
The bug that took down The DAO, why it still ships in 2026, and the three ways to kill it.
Severity, likelihood, false positives, and the sections that actually matter to a buyer.
Mint authority, blacklists, hidden fees, and upgradeable proxies — what to grep for before you buy.
Smart contract audits, answered
What is a smart contract audit?
A smart contract audit is a security review of blockchain code that controls funds. It looks for ways a caller could take money, freeze it, or gain rights they should not have — reentrancy, broken access control, arithmetic that wraps, unsafe delegatecall — and reports each finding with a severity, the exact line, and a fix.
How much does a smart contract audit cost?
On EVM Smart Audit, $150 for a single contract, $250 for up to five, and $350 for unlimited contracts with Slither and a re-audit after fixes. Manual audits by a firm typically run $5,000 to $30,000, and tier-one firms auditing a full protocol commonly start around $50,000.
Can I get a free smart contract audit?
Yes. Address scans on any supported testnet are free and need no account, and they run the full static detector suite. The report downloads as a watermarked PDF. Mainnet audits are the paid product.
How long does an audit take?
Minutes. Source resolution, the static pass, Slither and the AI review all run server-side and the PDF renders immediately afterwards. There is no queue and no scheduling call.
Which chains and contract types are supported?
Every major EVM network, by verified address, pasted Solidity, or an uploaded .sol file or project .zip. ERC-20, ERC-721, ERC-1155, staking, vesting and proxy contracts are all in scope, and proxies are resolved to their implementation automatically.
Is an automated audit as good as a manual one?
For known bug classes and standards coverage it is more complete, because it never gets tired or skips a check. For novel economic design, cross-protocol composability, and whether the code matches your whitepaper, it is not a substitute for a human expert. The two are complements — run the automated pass first, then hire a firm for the design questions.
Ready to see what's hiding in your contract?
No sign-up. Run a static scan for free, or add your Anthropic key for AI deep analysis.
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