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Deterministic A2A Broken-JSON Repair & Schema Validator
Deterministic A2A Broken-JSON Repair & Schema Validator is a paid API for AI agents from github-audit.agentdiet.dev, paid per call via MPP, $0.002/call, status unknown (last checked 2026-10-23).
Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash
Price / call$0.002
Success—
StatusUnknown
How this service works
Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash. (Live x402 v2, IETF MPP & MCP endpoint at https://github-audit.agentdiet.dev/v1/malformed-json-healer)
Output
A JSON object containing the repaired, syntactically valid JSON derived from the malformed input. The original malformed JSON is cleaned of issues such as trailing commas, markdown fences, single quotes, and truncation, returning a parseable structure ready for use in downstream pipeline steps.
Example use cases
Fixing LLM output before database write
“The language model just returned this JSON with a trailing comma and it's going to break our database insert — can you fix it? Here's the raw output: {"user": "bob", "score": 42,}”
Stripping markdown fences from agent response
“Our agent wrapped its JSON response in triple-backtick markdown fences and now the downstream parser is failing — please clean it up and return valid JSON from this: ```json
{"status": "ok", "count": 5}
```”
Repairing single-quoted JSON in pipeline
“We got this JSON from an upstream model that used single quotes instead of double quotes and it's crashing the next step — repair it to valid JSON: {'product': 'widget', 'price': 9.99}”
Technical details
Endpoint
POSThttps://github-audit.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSON repair for LLM outputs in automated multi-agent pipelines where reliability is critical. Prefer this over ad-hoc string manipulation or re-prompting the LLM when you need a consistent, low-latency fix for common JSON syntax issues like trailing commas, markdown fences, and single quotes without incurring additional LLM inference costs.
Side effects
- Input is so severely corrupted that deterministic repair is impossible — may return error or best-effort partial result
- Input string is empty or null — validation error returned
- JSON structure is semantically ambiguous after repair — repaired output may not match original intent
- Extremely nested or large payloads may timeout or produce unexpected results
- Non-JSON content submitted (e.g. plain text or binary) — service may return error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| raw_jsonrequired | string | Malformed, truncated, or markdown-wrapped JSON string to deterministically repair |
Output
Schema · Response
{
"type": "object"
}Reviews
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