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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/json-fix)
Output
A repaired, valid JSON object reconstructed from the malformed input. The endpoint deterministically fixes common LLM JSON issues including trailing commas, markdown fences, single-quoted strings, and truncation, returning a parseable JSON structure.
Example use cases
Fixing LLM output before downstream use
“The LLM just returned this JSON but it has trailing commas and it won't parse — can you repair it so my pipeline can continue? Here's the raw output: {"status": "ok", "items": [1, 2, 3,]}”
Stripping markdown fences from agent response
“My agent wrapped its JSON in triple backtick markdown fences and now it's crashing my parser. Can you clean it up and give me valid JSON? The raw string is: ```json
{"result": true}
```”
Recovering truncated JSON from a long generation
“The model got cut off mid-generation and the JSON is incomplete — it ends abruptly at 'user': 'Bob'. Can you deterministically repair and close it so it's valid JSON I can work with?”
Technical details
Endpoint
GEThttps://domain-osint.agentdiet.dev/v1/json-fix?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSON repair for LLM-generated outputs in automated pipelines where reliability matters. Prefer it over ad-hoc string manipulation or asking the LLM to self-correct, especially when dealing with consistent failure patterns like trailing commas, markdown wrapping, or single quotes. Ideal for multi-agent orchestration layers that need fast, predictable JSON normalization without re-querying the LLM.
Side effects
- Input is so severely malformed that deterministic repair is impossible — returns error
- Input is not JSON-like at all (plain text, binary) — returns parse failure
- Truncation is too deep to infer correct closing structure — may return partially repaired output
- Empty or whitespace-only raw_json input — returns validation 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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