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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 domain-osint.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://domain-osint.agentdiet.dev/v1/schema-repair)
Output
A repaired, valid JSON object derived from the malformed input, with common LLM output issues fixed including trailing commas removed, single quotes converted to double quotes, markdown code fences stripped, and truncated structures closed — returned as a parseable JSON response object.
Example use cases
Fix LLM output before downstream agent
“The language model returned this JSON but it has a trailing comma and single quotes so my pipeline is crashing — can you repair it so it's valid JSON? Here's the raw output: {'status': 'ok', 'items': ['a','b',],}”
Strip markdown fences from agent response
“My agent wrapped its JSON in triple backtick markdown fences and now I can't parse it — can you clean that up and give me the raw valid JSON? The string is: ```json
{"result": "success"
}```”
Recover truncated JSON from partial LLM output
“The LLM got cut off mid-response and I got truncated JSON that ends abruptly without closing brackets — can you repair this and return the best valid JSON you can reconstruct from: {"user": "bob", "score": 42, "tags": ["dev"”
Technical details
Endpoint
GEThttps://domain-osint.agentdiet.dev/v1/schema-repair?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 LLM formatting mistakes such as trailing commas, markdown code fences, single quotes, or truncation. It is ideal for deterministic, rule-based repair rather than LLM-based re-generation of JSON, making it fast, cheap, and predictable. Prefer it over asking the LLM to re-generate when you need a reliable, low-latency fix that won't introduce hallucinated values.
Side effects
- Input JSON is so severely malformed that deterministic repair cannot produce a valid result
- Empty or whitespace-only raw_json input returns an error
- Input that is not JSON-like at all (plain text, HTML) may fail to repair
- Extremely long truncated inputs may produce structurally incomplete but syntactically closed output
- Missing required raw_json parameter returns a 400/422 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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