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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 serp-extract.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://serp-extract.agentdiet.dev/v1/json-fix)
Output
Returns a repaired, valid JSON object that has been cleaned of common LLM output artifacts such as trailing commas, markdown code fences, single quotes, and truncation errors — ready for programmatic parsing.
Example use cases
Fix crashed agent pipeline JSON
“My multi-agent pipeline just crashed because the LLM returned malformed JSON with trailing commas and a markdown code fence wrapper — can you repair this raw string so I can continue processing? The bad JSON is: ```{"status": "ok", "results": [1, 2, 3,],}```”
Sanitize LLM output before DB insert
“Before I save this to the database, I need you to fix this JSON that came back from the model — it has single quotes instead of double quotes and some extra commas: {'user': 'bob', 'score': 99,}”
Validate repaired JSON in automation workflow
“I have this truncated JSON from an LLM response that cuts off mid-object — can you deterministically repair it and give me back valid, parseable JSON? Here it is: {"items": ["apple", "banana"”
Technical details
Endpoint
GEThttps://serp-extract.agentdiet.dev/v1/json-fix?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent or LLM pipeline regularly receives malformed JSON that crashes downstream processing — particularly when outputs include markdown fences, trailing commas, or single quotes common in GPT/Claude outputs. Prefer this over a generic JSON linter when you need deterministic, agent-friendly repair without hallucination risk and need to pay per-call via HTTP 402 micropayment.
Side effects
- Input JSON too severely malformed to deterministically repair — returns error or best-effort partial output
- Input string is not JSON at all (e.g. plain prose) — may fail to produce valid output
- Ambiguous truncation where multiple valid completions exist — may produce unexpected structure
- Empty or whitespace-only raw_json input — returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| limit | integer | Maximum number of items to return per page (1-100) |
| cursor | string | Opaque pagination cursor for fetching the next page |
| raw_jsonrequired | string | Malformed, truncated, or markdown-wrapped JSON string to deterministically repair |
Output
Schema · Response
{
"type": "object"
}Reviews
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