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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 shopify-spy.agentdiet.dev, paid per call via MPP, $0.002/call, status unknown (last checked 2026-10-21).
Repairs malformed, truncated, or markdown-wrapped JSON strings (trailing commas, single quotes, fences) so multi-agent pipelines can safely parse LLM outputs without crashing.
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://shopify-spy.agentdiet.dev/v1/schema-repair)
Output
Returns a repaired, valid JSON object parsed from the originally malformed or truncated input string, with common LLM-output errors (trailing commas, markdown fences, single quotes, truncation) corrected deterministically.
Example use cases
Fix crashed multi-agent pipeline JSON
“My agent pipeline keeps crashing because the LLM keeps returning JSON with trailing commas and single quotes — here's the bad output: {'user': 'bob', 'score': 42,} — can you repair it into valid JSON so the next step can parse it?”
Strip markdown fences from LLM response
“The model returned its JSON wrapped in triple backtick markdown fences and my parser can't handle it. The raw output is: ```json
{"items": [1, 2, 3]}
``` — please clean that up into plain valid JSON.”
Recover truncated LLM JSON output
“The LLM got cut off mid-response and I ended up with truncated JSON that's missing closing brackets: {"results": [{"id": 1, "name": "test" — can you deterministically repair this so I can use it downstream?”
Technical details
Endpoint
GEThttps://shopify-spy.agentdiet.dev/v1/schema-repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent or LLM pipeline is receiving malformed, truncated, or markdown-wrapped JSON that needs deterministic (rule-based, not AI-generated) repair before downstream parsing. Ideal when you need fast, predictable JSON sanitization without relying on another LLM call to fix the output.
Side effects
- Input is so severely malformed that deterministic repair is not possible — returns error or partial result
- JSON is valid already — may return as-is or with minimal processing
- Very long truncated strings may be unrecoverable if too much context is missing
- Network timeout or payment (x402) authentication failure returns 402 or 5xx
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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