APIs › Agent & Developer Utilities › JSON Repair

JSON Repair

Repairs malformed JSON — trailing commas, unquoted keys, single quotes, smart quotes, code fences, truncated tails — and lists every repair applied.

POST /v1/developer/json-repair $0.005 per call

Specification

Endpoint

POST /v1/developer/json-repair

Price

$0.005 per call · tier basic_data

Payment

x402 on X Layer (chain 196) · settled in USDG or USDT0 · schemes exact, aggr_deferred

Data source

Deterministic local computation on caller-supplied input

Timeout

15 seconds

Max request

2 MB

Version

1.0.0

Calling it

The first call returns a 402 with the payment challenge. Retry with a signed authorisation in the X-PAYMENT header — see the payment guide for the exact shape.

curl -i -X POST "https://api.dana-edu.pp.ua/v1/developer/json-repair" \
  -H "content-type: application/json" \
  -d '{ ... }'

Response

Real output, captured by running this endpoint at build time — not written by hand. Volatile fields such as timestamps are elided. Captured 2026-07-30.

{
  "was_valid": false,
  "repaired": true,
  "result": {
    "name": "Dana",
    "tags": [
      "a",
      "b"
    ],
    "active": true
  },
  "repairs_applied": [
    "removed markdown code fence",
    "quoted unquoted object keys",
    "converted single-quoted strings to double quotes",
    "removed trailing commas",
    "converted Python-style True/False to JSON true/false"
  ],
  "original_bytes": 60,
  "repaired_bytes": 52
}

Every response is wrapped in the same envelope: data plus warnings, sources, confidence, informational_only and a measured processing_ms. See the envelope reference.

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