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JSON Fixer / Repair
x402
JSON Fixer / Repair is a paid API for AI agents from dev-5090-box.tailfb4c1f.ts.net, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-12).
Repairs malformed JSON (trailing commas, single quotes, unquoted keys) and returns only valid, parseable 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
Returns only valid, parseable JSON with all syntax errors corrected — trailing commas removed, single quotes converted to double quotes, unquoted keys properly quoted. No explanation or wrapper, just the clean JSON.
Example use cases
Fix API response before processing
“The upstream API returned malformed JSON with trailing commas and unquoted keys — can you clean it up so I can parse it? Here's the broken payload: {name: 'Bob', scores: [10, 20, 30,]}”
Repair hand-written config JSON
“I wrote this config file by hand and it's not valid JSON — it has single quotes and a trailing comma. Can you fix it and give me proper JSON back? Here it is: {'host': 'localhost', 'port': 8080,}”
Sanitize user-submitted JSON input
“A user submitted this JSON through a form and it's invalid — there are unquoted keys and single-quoted strings. Can you repair it so I can safely save it to my database? Here's the raw input: {user: 'carlos', active: true, tags: ['admin', 'dev',]}”
Technical details
Endpoint
POSThttps://dev-5090-box.tailfb4c1f.ts.net/v1/json-fix?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have a JSON string with common syntax errors (trailing commas, single-quoted strings, unquoted keys) that you need repaired automatically without writing custom parsing logic. Ideal for pipelines that receive user-generated or hand-written JSON that is structurally close to valid but fails strict parsers. Not suitable for fully malformed or non-JSON input.
Side effects
- Input is so malformed it cannot be unambiguously repaired — returns an error or best-effort partial fix
- Input is not JSON at all (e.g. plain text, XML) — endpoint may return an error or unexpected output
- Ambiguous structure where multiple valid repairs exist — result may not match original intent
- Network timeout or service unavailability on the Tailscale host
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| usage | object | |
| choices | array |
Tags
x402
Reviews
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