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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 polymarket-odds.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://polymarket-odds.agentdiet.dev/v1/malformed-json-healer)
Output
A repaired, valid JSON object with all malformations corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed — ready for safe parsing by downstream agents or systems.
Example use cases
LLM pipeline JSON crash recovery
“My agent's last step returned this mangled JSON with trailing commas and triple-backtick fences and now everything downstream is crashing — can you repair it so I can continue processing? Raw string: ```{"result": "ok", "score": 0.92,}```”
Single-quote JSON normalization
“The LLM response came back using single quotes instead of double quotes and my JSON parser is throwing errors. Please fix this so it's valid JSON: {'user': 'bob', 'status': 'active'}”
Truncated JSON completion fix
“My model output got cut off mid-response and the JSON is incomplete — it ends abruptly without closing brackets. Can you repair and complete this truncated JSON so my pipeline doesn't break: {"items": [{"id": 1, "name": "widget"”
Technical details
Endpoint
GEThttps://polymarket-odds.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives malformed, truncated, or markdown-wrapped JSON from an LLM and needs a deterministic, rule-based fix rather than an AI-based rewrite. Ideal for production pipelines where consistency and predictability matter more than creative reconstruction. Prefer this over prompt-engineering retries when you need a fast, cheap ($0.002/call) synchronous repair step that won't alter semantics.
Side effects
- Input JSON is so severely corrupted that deterministic repair cannot infer original structure — returns error with explanation
- Input string is not JSON at all (e.g., plain text or HTML) — endpoint may return unparseable result or error
- Extremely long truncated JSON may be ambiguously completable — repaired output may not match original intent
- Network timeout or HTTP 402 payment failure if USDC payment is not properly configured
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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