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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 2026-10-23).
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-validator)
Output
A JSON object containing the repaired, valid JSON — ready to be parsed and passed to the next step in the pipeline without crashing
Example use cases
Fixing LLM output in agentic pipeline
“My AI agent just returned this JSON with trailing commas and it's breaking my downstream step — can you fix it so it's valid? Here's the raw string: {"result": "ok", "score": 0.95,}”
Stripping markdown fences from model response
“My language model wrapped its JSON response in triple backtick markdown fences and now my parser is failing — please strip the fences and return clean valid JSON for this: ```json
{"status": "complete", "items": [1, 2, 3]}
```”
Repairing single-quoted JSON from chatbot
“I got this single-quoted JSON back from a chatbot and it won't parse — can you convert it to proper double-quoted valid JSON? {'user': 'bob', 'active': true}”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/json-validator?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives raw LLM or chatbot output that may contain trailing commas, single quotes, markdown fences, or truncation artifacts — and you need a deterministic (not probabilistic) repair before passing JSON downstream. Prefer it over manual regex hacks or LLM-based re-prompting when you need fast, reliable, idempotent JSON sanitization at $0.002 per call with idempotency-key support for safe retries.
Side effects
- JSON is too severely corrupted to deterministically repair — returns error indicating unrecoverable input
- Input string is empty or missing raw_json field — returns 422 validation error
- Ambiguous structure where repair would change semantics — may return best-effort result with warning
- Payment required (HTTP 402) if x402 USDC payment header is missing or insufficient
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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