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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 2026-10-23).
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://shopify-spy.agentdiet.dev/v1/llm-json-schema-healer)
Output
A repaired, valid JSON object that has been cleaned of common LLM-introduced malformations including trailing commas, markdown code fences, single quotes, and truncation artifacts — ready for programmatic parsing without errors
Example use cases
Fix LLM output in agent pipeline
“My AI agent just returned this JSON but it's got trailing commas and wrapped in markdown backticks — can you clean it up so my pipeline doesn't crash? Here's the raw output: ```json
{"status": "ok", "items": [1, 2, 3,],}```”
Repair truncated API response JSON
“The LLM cut off partway through generating this JSON and now it's malformed — can you repair it and give me back valid JSON? The broken string is: {"user": "bob", "scores": [10, 20”
Sanitize single-quoted JSON before database insert
“I've got JSON that was generated with single quotes instead of double quotes and it's failing to parse — fix it to proper JSON format for me: {'product': 'widget', 'price': 9.99, 'in_stock': true}”
Technical details
Endpoint
POSThttps://shopify-spy.agentdiet.dev/v1/llm-json-schema-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSON repair for LLM outputs in automated pipelines where reliability matters — especially when dealing with markdown-fenced responses, trailing commas, or single-quoted keys. Prefer this over manual parsing hacks or custom regex when operating in a multi-agent system that requires consistent, crash-free JSON handling.
Side effects
- JSON too severely truncated or corrupt to deterministically repair — returns error indicating unrecoverable input
- Input string contains no parseable JSON structure at all — returns validation failure
- Ambiguous structure where multiple valid repairs are possible — may return best-guess repair or error
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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