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JSON Fixer / Linter
x402
JSON Fixer / Linter is a paid API for AI agents from charges-handling-limit-tunes.trycloudflare.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-29).
Repairs malformed JSON (trailing commas, single quotes, unquoted keys) and returns syntactically valid JSON.
Price / call$0.005
Success—
StatusUnknown
How this service works
Fix broken JSON (trailing commas, single quotes, unquoted keys). Returns only valid JSON.
Output
A response containing only the corrected, syntactically valid JSON, with all issues such as trailing commas, single-quoted strings, and unquoted keys resolved.
Example use cases
Fix LLM-generated malformed JSON
“The AI returned this JSON but it has trailing commas and single quotes everywhere — can you clean it up so it's valid and I can parse it in my app?”
Repair config file with unquoted keys
“My config file got corrupted and now has unquoted keys and trailing commas. Can you fix it and give me back valid JSON?”
Sanitize user-pasted JSON input
“A user pasted some JSON into our form but it's invalid — it has single quotes instead of double quotes and some missing brackets. Can you repair it into proper valid JSON?”
Technical details
Endpoint
POSThttps://charges-handling-limit-tunes.trycloudflare.com/v1/json-fix?utm_source=zero.xyzWhen to prefer
Use this endpoint when you have JSON that is almost valid but has common syntax issues like trailing commas, single quotes instead of double quotes, or unquoted keys — especially JSON produced by LLMs, humans, or legacy systems. Prefer this over writing custom regex-based fixers or using a full JSON schema validator.
Side effects
- Input is too malformed to reliably repair and returns an error
- Input is not JSON-like at all and cannot be fixed
- Ambiguous structure where the intended correction is unclear
- Network timeout if the Cloudflare tunnel is temporarily unavailable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| usage | object | |
| choices | array |
Tags
x402
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