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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 json-repair.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://json-repair.agentdiet.dev/v1/malformed-json-healer)
Output
A repaired, syntactically valid JSON object derived from the malformed input, with all issues (trailing commas, markdown fences, single quotes, truncation) corrected and ready for downstream parsing
Example use cases
Fix LLM output in agent pipeline
“The language model just returned this JSON with single quotes and trailing commas and my pipeline crashed — can you repair it into valid JSON? Here's the raw output: {'name': 'Bob', 'score': 95,}”
Strip markdown fences from JSON response
“My coding agent wrapped its JSON response in triple backtick markdown fences and now my parser is failing — can you strip the fences and fix whatever else is broken in this string: ```json {"items": [1, 2, 3,]} ```”
Recover truncated JSON from model timeout
“The model timed out mid-response and I got a truncated JSON that cuts off halfway through — can you repair this incomplete JSON so it's parseable: {"results": [{"id": 1, "value": "hello"}, {"id": 2, "val”
Technical details
Endpoint
POSThttps://json-repair.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails to parse due to common formatting issues like trailing commas, markdown code fences, single-quoted keys/values, or truncation mid-output. Ideal for autonomous pipelines that cannot afford crashes from malformed model outputs and need a deterministic (not generative) fix. Prefer over prompt-engineering retries when latency and cost matter.
Side effects
- Input so severely malformed that deterministic repair is impossible — returns error indicating unrecoverable structure
- Empty or whitespace-only input string — returns validation error
- Input that is not JSON-like at all (plain text, binary) — may return error or unexpected output
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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