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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 x402-audit.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 JSON to prevent multi-agent pipeline crashes.
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://x402-audit.agentdiet.dev/v1/json-normalizer)
Output
Returns a repaired, valid JSON object with the malformed input corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed. The response is a JSON object that can be safely parsed and used downstream in agent workflows.
Example use cases
Fix LLM output in agent pipeline
“My AI pipeline is crashing because the model keeps outputting JSON with trailing commas and sometimes wraps it in markdown code fences. Can you repair this so it parses correctly: ```json {"status": "ok", "items": [1, 2, 3,],} ```”
Normalize single-quoted JSON response
“I got this JSON back from a tool call but it uses single quotes instead of double quotes and my parser is rejecting it. Fix it for me: {'user': 'bob', 'score': 95, 'active': true}”
Recover truncated JSON from timeout
“My LLM timed out mid-generation and I got a truncated JSON object that's missing its closing brackets. Can you repair and complete this fragment so I can continue processing: {"order_id": "XYZ123", "items": [{"sku": "A1", "qty": 2}”
Technical details
Endpoint
GEThttps://x402-audit.agentdiet.dev/v1/json-normalizer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent pipeline is receiving malformed JSON from LLM outputs and needs a deterministic, reproducible fix — not a probabilistic re-generation. Prefer this over asking the LLM to re-generate JSON when you need consistent, rule-based repair of known JSON malformation patterns (trailing commas, markdown fences, single quotes, truncation). Ideal for production multi-agent systems where pipeline reliability is critical.
Side effects
- Input is so severely malformed that deterministic repair is ambiguous — endpoint may return an error or best-effort result
- Very large truncated JSON strings may have incomplete context making repair impossible
- Non-JSON content passed as raw_json (e.g. plain text) cannot be meaningfully repaired
- GET query parameter length limits may prevent passing extremely long malformed JSON strings
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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