SmartSec

AI-powered smart contract security scanner. Free to try, $0.50-$2.00 for deep analysis based on size. Upload contract, get vulnerability report.

Scan Contract View Pricing
$0
To Start
50+
Vuln Patterns
4
EVM Chains
SECURITY SCANNER

Scan Your Smart Contract

Upload a contract file or fetch verified source from block explorers. Select your tier and get an AI-powered vulnerability analysis.

Drop contract or click to upload
.sol, .rs, .vy, .move (max 5MB)
Basic
FREE
Pattern scan (3/day)
Pro
$0.50-$2.00
Claude AI (by size)
x402 Protocol

Built for AI Agents

No API keys. No accounts. No OAuth. Just pay and scan. Programmatic access designed for autonomous security systems.

Instant Audits

Upload contract, pay USDC, get vulnerability report. No waiting for human auditors. Results in seconds.

Pay Per Scan

USDC on Solana. Sub-second finality. Include TX signature in X-PAYMENT header.

Multi-Model

GPT-4, Claude, Gemini, Llama. Multiple AI perspectives catch vulnerabilities a single model might miss.

Agent Integration Example

# Free scan (3/day)
POST https://api.smartsec.app/audit
-F "file=@contract.sol" -F "tier=basic"

# Pro scan ($0.50-$2 based on size)
POST https://api.smartsec.app/audit
X-PAYMENT: <tx-signature>
-F "file=@contract.sol" -F "tier=pro"
PRICING

Simple, Transparent Pricing

Start free, upgrade when you need deeper analysis. No subscriptions, pay per scan.

FREE

Basic

3 scans/day

Pattern-based vulnerability scanner. Detects common vulnerability patterns including reentrancy, unchecked returns, tx.origin issues, and access control problems.

METHOD
Regex patterns
DETECTS
50+ patterns
SPEED
Instant
LIMIT
3/day
RECOMMENDED
$0.50-$2

Pro

Unlimited

Claude AI deep analysis. Understands code logic, data flow, and complex vulnerability chains. Provides detailed explanations and remediation suggestions.

METHOD
Claude AI
DETECTS
Logic flaws
SPEED
~30 seconds
PRICE
$0.50 <500
$1.00 <2k
$2.00 2k+
SUPPORTED CHAINS

Multi-Chain Support

Fetch verified contract source directly from block explorers. Scan any EVM-compatible chain.

Ethereum
Etherscan verified contracts
BSC
BSCScan verified contracts
Polygon
PolygonScan verified contracts
Arbitrum
Arbiscan verified contracts
SUPPORTED LANGUAGES
.sol (Solidity) .rs (Rust/Anchor) .vy (Vyper) .move (Move)
FAQ

Common Questions

What vulnerabilities do you detect?

Our AI models scan for 50+ vulnerability patterns including: reentrancy, unchecked return values, tx.origin authentication, selfdestruct misuse, delegatecall risks, integer overflow/underflow, access control issues, front-running vulnerabilities, oracle manipulation, and more.

What's the difference between Basic and Pro?

Basic uses pattern matching to detect common vulnerabilities - fast and free, but limited to known patterns. Pro uses Claude AI to understand your code's logic, catch subtle issues, and provide detailed explanations and fixes.

Does this replace a manual audit?

AI scanning is a complement to, not a replacement for, professional security audits for high-value contracts. Use SmartSec for rapid iteration during development, pre-audit checks, and continuous monitoring. For major protocol launches, combine with a manual audit from a reputable firm.

What is x402?

x402 lets you pay per scan instead of managing API keys and subscriptions. Send USDC on Solana, include the transaction ID in your request, done.

Is my contract code stored?

No. Contract code is processed in memory and immediately discarded after analysis. We do not store, log, or retain your source code. Audit results are returned directly to you.