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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 llms-generator.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) 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://llms-generator.agentdiet.dev/v1/schema-repair)
Output
Returns a repaired, valid JSON object with the original structure preserved but all malformations fixed — including trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed.
Example use cases
Fix LLM output in agent pipeline
“My AI agent just returned this malformed JSON with a trailing comma and it's breaking my downstream process — can you repair it so it parses cleanly: {"status": "ok", "score": 0.95,}”
Strip markdown fences from JSON response
“The model wrapped its JSON output in triple-backtick markdown fences and now my code can't parse it — please fix this and give me clean valid JSON: ```json
{"result": "success", "items": [1, 2, 3]}
```”
Repair single-quoted JSON from chatbot
“I got back some JSON using single quotes instead of double quotes from a chatbot response and it won't parse — can you convert it to valid JSON: {'user': 'bob', 'active': true}”
Technical details
Endpoint
GEThttps://llms-generator.agentdiet.dev/v1/schema-repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSON repair for LLM outputs in automated pipelines — specifically when dealing with trailing commas, markdown code fences, single quotes, or mild truncation. Prefer this over LLM-based JSON re-generation when you need speed, cost efficiency ($0.002/call), and reproducibility. Best suited for multi-agent orchestration scenarios where downstream steps require guaranteed-valid JSON.
Side effects
- Input is so severely malformed that structure cannot be inferred — returns error indicating unrecoverable JSON
- Empty or null raw_json parameter — returns validation error
- Input is not JSON-like at all (plain text, binary) — may return error or best-effort result
- Extremely long truncated JSON where inferred closing structure may be incorrect
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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