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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 defi-yield.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 so multi-agent pipelines don't 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://defi-yield.agentdiet.dev/v1/json-normalizer)
Output
Returns a JSON object containing the repaired and normalized JSON, with malformed syntax (trailing commas, markdown fences, single quotes, truncation) corrected into valid, parseable JSON.
Example use cases
Fix LLM pipeline JSON crash
“My agent pipeline keeps crashing because the language model returns JSON with trailing commas and single quotes — can you clean up this broken output so it parses correctly: {name: 'Bob', score: 95,}?”
Strip markdown fences from JSON
“The model wrapped its response in markdown code fences like ```json ... ``` and now my parser chokes — can you strip those out and give me clean valid JSON from this: ```json
{"result": "ok", "count": 3}
```?”
Recover truncated JSON response
“My LLM response got cut off mid-JSON and I need whatever I can recover from this truncated string — can you repair it: {"users": [{"id": 1, "name": "Alice"}, {"id": 2, "name"?”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/json-normalizer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent or LLM pipeline receives JSON outputs that have common LLM-induced syntax errors such as trailing commas, markdown code fences, single-quoted keys/values, or mid-stream truncation, and you need a deterministic (not probabilistic) repair rather than re-prompting the LLM. Prefer this over manual parsing hacks or retrying the LLM when reliability and cost matter.
Side effects
- Input JSON is too severely malformed or truncated to deterministically repair — returns error or best-effort partial result
- raw_json parameter missing or empty — returns 400 validation error
- Input that is not JSON at all (plain text, binary) — may return unparseable output
- Extremely long truncated strings may exceed processing limits
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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