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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 token-intel.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, parseable 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://token-intel.agentdiet.dev/v1/structured-output)
Output
A JSON object containing the repaired, valid JSON that was reconstructed from the malformed input. The response corrects issues like trailing commas, markdown code fences, single-quoted keys/values, truncated structures, and other common LLM JSON formatting errors.
Example use cases
Fix LLM output before database write
“Our language model returned this malformed JSON with a trailing comma and I need to write it to the database — can you repair it first? Here's what it gave us: {"user_id": 42, "status": "active", }”
Strip markdown fences from agent response
“The agent wrapped its JSON output in triple-backtick markdown fences and now my parser is failing — can you clean this up into raw valid JSON? Here's the raw string: ```json\n{"items": ["apple", "banana"]}\n```”
Recover truncated JSON mid-pipeline
“We got a cut-off JSON string from the model that stops mid-value and our pipeline crashed — can you deterministically repair this truncated JSON so we can continue? Here it is: {"order": {"id": 101, "product": "widget", "qty":”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/structured-output?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent or LLM pipeline receives structured JSON outputs that are malformed, truncated, or wrapped in markdown fences and you need a deterministic (non-LLM) fix rather than asking another model to re-parse. Ideal for production pipelines where reliability matters and you cannot afford downstream crashes from bad JSON. Prefer over prompt-engineering workarounds when you need a programmatic, repeatable repair step.
Side effects
- Input JSON too severely truncated or corrupted to deterministically repair — returns error indicating ambiguous repair
- Empty or null raw_json parameter — returns 400 bad request
- Input is not recognizable as JSON at all (e.g. plain prose) — may return error or unexpected output
- Payment not processed (HTTP 402) — request blocked until x402 micropayment is completed
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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