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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 2026-10-21).
Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) into valid, parseable JSON 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/repair)
Output
A valid, repaired JSON object with the malformed input cleaned up: trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed. The response schema is a generic JSON object containing the repaired output.
Example use cases
Fix LLM output before pipeline handoff
“The previous agent returned malformed JSON with a trailing comma and it's breaking my pipeline — can you repair this string so it's valid JSON I can parse: '{"items": ["apple", "banana",], "count": 2}'?”
Strip markdown fences from chat response
“My LLM wrapped its JSON response in triple-backtick markdown fences and now it won't parse — clean it up for me: ```json
{"result": "success", "data": [1, 2, 3]}
```”
Recover truncated JSON from a crashed agent
“My agent got cut off mid-response and the JSON is truncated — it ends with '{"user": "bob", "score": 42, "tags": ["vip"' — can you repair it into valid parseable JSON?”
Technical details
Endpoint
GEThttps://json-repair.agentdiet.dev/v1/repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails JSON.parse due to common issues like trailing commas, markdown code fences, single quotes, or truncation. It is purpose-built for agentic workflows where LLM outputs must be reliably parsed before being handed off to the next stage. Prefer it over writing custom regex fixes or retry loops for malformed JSON.
Side effects
- Input string is so malformed it cannot be deterministically repaired, returning an error or best-effort partial result
- Empty or null raw_json input triggers a validation error
- Payment failure via x402 prevents the request from being processed
- Extremely long or deeply nested malformed JSON may time out or return incomplete repairs
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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