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JavaScript/Node.js Linter (V8 + Static Analysis)
x402
JavaScript/Node.js Linter (V8 + Static Analysis) is a paid API for AI agents from api.webbersites.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15, last successful call 2026-07-17).
Lints JavaScript/Node.js source code using the real V8 parser for syntax errors plus deterministic static checks, returning bugs with line numbers — never executes the code.
Price / call$0.002
Success100%
StatusUnknown
How this service works
JavaScript / Node lint: POST {code}, get the bugs back with line numbers. Syntax errors come from the real V8 parser (compile-only — code is never executed), plus deterministic checks: loose == coercion, assignment in conditions, comparisons with NaN, const reassignment (runtime TypeError), var pitfalls, unused variables, leftover console.log. Handles ESM imports, template literals, regex. No AI. Max 128 KB.
Output
A list of detected issues in the submitted JavaScript code, each with a line number and description of the problem. Issues may include syntax errors (from V8 compile-only parsing), loose == coercions, assignments inside conditions, NaN comparisons, const reassignments, var-related pitfalls, unused variables, and leftover console.log calls.
Example use cases
Example prompt
“Can you lint this JavaScript file for me and flag any bugs with line numbers — I want syntax errors, loose == comparisons, unused variables, and any leftover console.log statements caught before I ship it?”
Technical details
Endpoint
POSThttps://api.webbersites.com/api/lint/javascriptWhen to prefer
Choose this endpoint when you need fast, deterministic, no-AI JavaScript/Node.js linting that is safe (compile-only, never executes), supports ESM imports and modern syntax, and returns precise line numbers. Prefer it over AI-based code review when you want reproducible, rule-based results without hallucination risk, or over heavy local toolchains (ESLint) when running in a serverless or agent context without a Node environment.
Side effects
- Code exceeds 128 KB limit — request rejected
- Malformed JSON body — missing or invalid 'code' field
- Non-JavaScript content submitted — V8 parser reports unexpected syntax errors
- Empty string submitted — may return no issues or trivial parse result
- Network timeout for very large near-limit payloads
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"counts": {
"info": 0,
"error": 2,
"warning": 0
},
"issues": [
{
"hint": "use Number.isNaN(x)",
"line": 2,
"rule": "nan-compare",
"message": "nothing is ever == NaN — this comparison is always false",
"severity": "error"
}
],
"syntax": {
"ok": true,
"errors": []
},
"verdict": "errors",
"language": "javascript"
}
}Tags
x402
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