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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 defi-yield.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 can parse them reliably
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://defi-yield.agentdiet.dev/v1/repair)
Output
A repaired, valid JSON object derived from the submitted malformed input — with trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed — ready to be parsed by downstream agents or services.
Example use cases
Fix LLM pipeline JSON crash
“My agent just returned this malformed JSON and my pipeline crashed: {"items": ["foo", "bar",], "count": 2,} — can you repair it so it's valid JSON I can use?”
Strip markdown fences from model output
“The LLM wrapped its JSON response in markdown code fences like ```json ... ``` and now I can't parse it — can you clean that up and give me valid JSON back?”
Repair single-quoted JSON from AI
“I got this JSON from an AI assistant but it used single quotes instead of double quotes: {'user': 'bob', 'score': 95} — can you fix it to proper JSON format?”
Technical details
Endpoint
GEThttps://defi-yield.agentdiet.dev/v1/repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an LLM or AI agent has produced JSON output that fails to parse due to common formatting issues like trailing commas, markdown code fences, single quotes, or truncation. It is ideal for multi-agent pipelines where downstream steps require valid JSON and you need a fast, deterministic fix rather than a probabilistic LLM-based rewrite. Prefer it over manual parsing logic or general-purpose LLM calls for repair tasks — it is purpose-built, cheap ($0.002/call), and deterministic.
Side effects
- Input is so severely truncated or corrupted that deterministic repair is impossible — returns error indicating unrecoverable JSON
- raw_json parameter is missing or empty — returns validation error
- Input is not JSON at all (e.g. plain text or binary) — may return partial or failed repair
- Extremely large JSON strings may time out or be rejected
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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