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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 workflows.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://workflows.agentdiet.dev/v1/repair)
Output
A JSON object containing the repaired, valid JSON — with trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and any truncation-induced syntax errors deterministically fixed, ready for downstream parsing.
Example use cases
Fix LLM output in agent pipeline
“My language model returned this JSON but it has trailing commas and won't parse — can you repair it so the next agent in the chain can use it: {"items": ["apple", "banana",], "count": 2,}”
Strip markdown fences from AI response
“The AI wrapped its JSON in triple backticks and my code is crashing — please clean this up and give me valid JSON: ```json {"status": 'active', "score": 0.95} ```”
Recover truncated JSON from cutoff response
“My model hit its token limit mid-response and the JSON got cut off halfway through — here's what I got: {"user": {"id": 42, "name": "Bob", "roles": ["admin" — can you repair it into valid JSON?”
Technical details
Endpoint
GEThttps://workflows.agentdiet.dev/v1/repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an AI agent pipeline receives unparseable JSON from an LLM — especially outputs with trailing commas, single-quoted keys/values, markdown code fences, or mid-sequence truncation. Prefer this over custom regex heuristics when you need deterministic, reliable repair across a wide range of malformation types without writing fragile parsing code.
Side effects
- Input so severely truncated that structure cannot be inferred — returns error or best-effort partial repair
- Non-JSON input (e.g. plain text, binary) — may return error indicating input is not repairable JSON
- Ambiguous structure where multiple valid repairs are possible — may return only one deterministic interpretation
- Network or payment-related failures (x402 payment required) — returns 402 status
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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