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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/malformed-json-healer)
Output
Returns a repaired, schema-valid JSON object derived from the malformed input string, with all syntax errors (trailing commas, markdown fences, single quotes, truncation) corrected so it can be parsed by standard JSON parsers.
Example use cases
Fix LLM output in agent pipeline
“My AI pipeline keeps crashing because the language model is returning JSON with trailing commas and missing closing brackets — can you fix this raw string and give me back valid JSON so I can continue processing? Here's the bad output: {"user": "bob", "score": 42,}”
Strip markdown fences from AI response
“The LLM wrapped its JSON output in markdown code fences and now my parser is failing — can you clean this up and return just the valid JSON object? The raw string is: ```json
{"result": "success", "items": [1, 2, 3]}
```”
Repair single-quoted JSON from chatbot
“I got this JSON back from a chatbot that used single quotes instead of double quotes and my downstream service won't accept it — can you convert it to valid JSON? Here it is: {'name': 'Charlie', 'active': true}”
Technical details
Endpoint
POSThttps://serp-extract.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails standard parsing due to common syntax errors like trailing commas, markdown code fences, single-quoted keys, or truncated output. It is specifically designed for deterministic repair of AI-generated JSON rather than general data transformation, making it ideal for fault-tolerant agent workflows where downstream steps require strictly valid JSON.
Side effects
- Input is so severely malformed that repair is not deterministically possible — returns error indicating unrecoverable JSON
- Empty or null raw_json field — returns validation error
- Input is not JSON at all (e.g. plain text, binary) — returns parse failure
- Idempotency-Key collision with differing payloads — may return cached prior result
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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