Mekler AI JSON Repair & Convert is a paid API for AI agents from api.mekler.ai, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-30).
Conservatively repairs JSON syntax errors or converts between JSON and safe YAML, recording every transformation applied without inventing values.
Conservatively repair JSON syntax or convert JSON and safe YAML while recording every repair. Remove only BOM, complete JSON markdown fences and trailing commas outside strings; abstain on ambiguous or unsupported data. Up to 16000 UTF-8 input bytes, depth 24 and 4000 values. No invented values, semantic validation or code execution. Numeric values that cannot be preserved without rounding return explicit abstention.
Returns a JSON object with: 'output' (the repaired or converted document string), 'status' (ok or abstained), 'outcome' (e.g. converted, repaired, unchanged), 'reason' (explanation if abstained), 'transformations' (array of operations with offset and type), 'limitations' (list of what the service does and does not do), 'input_format', 'output_format', and 'observed_at' timestamp. If the input contains ambiguous data, unsupported syntax, duplicate keys, nonfinite numbers, or numeric values that would require rounding, the service returns an explicit abstention rather than guessing.
POSThttps://api.mekler.ai/v1/data/json/repair-or-convert-document?utm_source=zero.xyzChoose this endpoint when you need a conservative, auditable repair or format conversion of JSON or YAML with zero invented values — it is ideal for pipelines or compliance contexts where silent data mutation is unacceptable. Prefer this over generic JSON formatters when you need a full transformation log, when the input may contain BOM characters or markdown fences, or when you must distinguish between 'repaired', 'converted', and 'unchanged' outcomes. Unlike LLM-based fixers, this endpoint will explicitly abstain rather than guess at missing delimiters, keys, or values.
| Field | Type | Description |
|---|---|---|
| text | string | |
| request_id | string | |
| input_format | string | |
| output_format | string |
{
"type": "json",
"example": {
"output": "service: Mekler\n",
"reason": null,
"status": "ok",
"outcome": "converted",
"limitations": [
"Only BOM removal, complete JSON markdown fences and trailing commas outside quoted strings are repaired; offsets refer to each transformation stage.",
"No missing values, keys, closing delimiters or quotes are guessed. Duplicate keys, nonfinite numbers and unsupported syntax produce abstention.",
"Numeric values must round-trip through their serialized representation without decimal-value loss; unsupported precision produces abstention instead of rounding.",
"YAML uses safe YAML 1.1 scalar interpretation; timestamps remain strings, aliases/anchors/explicit tags are rejected, and only JSON-compatible string-keyed values are supported.",
"Formatting and comments are not preserved. A completed conversion or abstention diagnostic is charged; no semantic truth or schema validity claim."
],
"observed_at": "2026-10-20T00:00:00Z",
"input_format": "json",
"output_format": "yaml",
"transformations": [
{
"offset": 19,
"operation": "remove_trailing_comma"
}
]
}
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