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agent402.tools Solidity Smart Contract Security Scanner
x402
agent402.tools Solidity Smart Contract Security Scanner is a paid API for AI agents from agent402.tools, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Runs a deterministic static analysis scan on Solidity source code, flagging common security vulnerabilities using a fixed ruleset
Price / call$0.01
Success—
StatusUnknown
How this service works
Deterministic static pattern scan of Solidity smart-contract source text - a fixed ruleset flagging tx.origin authentication, delegatecall, selfdestruct, unchecked low-level calls, unchecked .send(), floating pragmas, block-timestamp dependence, weak block-derived randomness, value-call reentrancy surface, inline assembly, ecrecover, and missing SPDX headers. Returns line-anchored findings with severities.
Output
A list of flagged security issues found in the submitted Solidity source, including which vulnerability patterns were detected (e.g., tx.origin auth, delegatecall usage, selfdestruct, unchecked .send(), floating pragma, block-timestamp dependence) with relevant details about each finding.
Example use cases
Example prompt
“Can you scan this Solidity contract source code for security vulnerabilities? I want to check it for things like tx.origin authentication, delegatecall, selfdestruct, unchecked low-level calls, and floating pragmas.”
Technical details
Endpoint
POSThttps://agent402.tools/api/solidity-scanWhen to prefer
Choose this endpoint when you need fast, deterministic, rule-based static analysis of Solidity smart contract source code without setting up a local toolchain. It is ideal for quick pre-deployment security checks, CI pipeline integration via AI agents, or auditing third-party contracts. Prefer it over full formal verification tools when speed and cost matter and a fixed-ruleset scan is sufficient. Not suitable for runtime analysis, fuzzing, or detecting logic-level business vulnerabilities.
Side effects
- Source text exceeds 512KB limit — request rejected
- Invalid or non-Solidity text submitted — may produce empty or misleading results
- Payment of $0.01 USDC not fulfilled — 402 Payment Required response
- Malformed JSON request body — 400 error
- Network timeout for very large contracts near the size limit
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| source | string | Solidity source text to scan (max 512KB). |
Output
Schema · Response
{
"type": "json",
"example": {
"lines": 7,
"summary": {
"low": 1,
"high": 2,
"info": 1,
"medium": 1
},
"findings": [
{
"line": 4,
"rule": "tx-origin",
"message": "tx.origin used - authentication via tx.origin is phishable; use msg.sender.",
"snippet": "require(tx.origin == msg.sender);",
"severity": "high"
}
],
"disclaimer": "Deterministic heuristic pattern check - not a compiler, not an audit."
}
}Tags
x402
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