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AISkills402 JSONL Repair
x402
AISkills402 JSONL Repair is a paid API for AI agents from api.aiskills402.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-14).
Converts malformed or broken JSON Lines (NDJSON) text into valid, one-record-per-line JSONL output using deterministic repair rules — no LLM involved.
Price / call$0.003
Success—
StatusUnknown
How this service works
JSONL Repair API: turns broken JSON Lines (NDJSON) into one valid record per line - joins, splits, unwraps, drops fences and chat text, fixes quotes, keys, commas, Python literals; numbers copied as written. $0.003 USDC per call, no account, no language model: a cut-off record, repeated key or ambiguous leading zero gets a paid CANNOT REPAIR verdict. POST JSON {input} up to 60 000 chars; free example at https://api.aiskills402.com/v1/run/jsonl-repair/example
Output
Returns a JSON object with 'ok' true/false, a 'result' object containing the repaired JSONL string (one valid JSON object per line) and the count of records produced, plus a blockchain settlement receipt and the SHA-256 of the input. If the input is too ambiguous or malformed to repair (e.g. cut-off record, repeated keys, ambiguous leading zero), the 'refusal' field explains why and 'ok' is false.
Example use cases
Fix LLM-generated JSONL output
“The model returned a big blob of JSON wrapped in a markdown code fence with all the records mashed together — can you repair it into proper JSONL, one record per line, so I can feed it into my pipeline?”
Normalize array-wrapped JSON to NDJSON
“I have a JSON array like [{"a":1},{"b":2}] that I need converted into newline-delimited JSON records — can you split it out into valid JSONL for me?”
Repair JSONL with Python literal values
“My data file has Python-style booleans and None values scattered through it — True, False, None instead of proper JSON. Can you fix the whole file into valid JSONL?”
Technical details
Endpoint
POSThttps://api.aiskills402.com/v1/run/jsonl-repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSONL repair without involving a language model — it is faster, cheaper, and fully reproducible. Ideal for data pipeline automation where LLM-based repair would introduce non-determinism or cost too much at scale. Best when the malformation is structural (fencing, wrapping, gluing, Python literals, quote issues) rather than semantic content corruption.
Side effects
- CANNOT REPAIR verdict returned for cut-off records that are syntactically unresolvable
- CANNOT REPAIR for repeated/duplicate keys where intent is ambiguous
- CANNOT REPAIR for numbers with ambiguous leading zeros
- Input exceeds 60,000 character limit — request rejected
- Payment failure via x402 protocol — endpoint returns 402 before processing
- Malformed POST body (missing 'input' field) — validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Text that was meant to be JSON Lines (NDJSON) and is not: glued, pretty-printed, fenced, array-wrapped or sloppy records. |
Output
Schema · Response
{
"type": "json",
"example": {
"ok": true,
"skill": "jsonl-repair",
"engine": "1.0.0",
"replay": false,
"result": {
"jsonl": "{\"id\":1,\"ok\":true}\n{\"id\":2,\"ok\":null,\"price\":1.10}",
"records": 2
},
"receipt": {
"tx": "0x<settlement transaction>",
"settled": true
},
"refusal": null,
"input_sha256": "<sha256 of the request>"
}
}Tags
x402
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