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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 domain-osint.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, code fences) into valid JSON for use in multi-agent pipelines
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://domain-osint.agentdiet.dev/v1/json-normalizer)
Output
A repaired, valid JSON object derived from the malformed input string, with syntax errors corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncation handled where possible.
Example use cases
LLM pipeline JSON crash prevention
“The agent upstream just returned this malformed JSON with a trailing comma and I need to pass it downstream without crashing — can you fix it: {"status": "ok", "results": [1, 2, 3,]}”
Markdown-fenced JSON cleanup
“My LLM wrapped its JSON response in triple-backtick markdown fences again, like ```json
{"key": "value"}
``` — strip that out and give me clean parseable JSON.”
Single-quoted JSON key repair
“I got this JSON back with single quotes instead of double quotes: {'user': 'bob', 'score': 42} — can you normalize it to valid JSON so my downstream tool doesn't throw a parse error?”
Technical details
Endpoint
GEThttps://domain-osint.agentdiet.dev/v1/json-normalizer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when your multi-agent pipeline receives JSON from an LLM that frequently produces markdown-wrapped, trailing-comma, or single-quoted output and you need a deterministic (non-LLM) repair step that is cheap, fast, and idempotent. Prefer it over writing custom regex fixers or calling another LLM to reformat JSON, especially when pipeline reliability and cost per call ($0.002) matter.
Side effects
- Input is so severely truncated that valid JSON cannot be reconstructed — returns error or best-effort partial result
- Input is not JSON-like at all (plain text, binary) — may return an error indicating unparseable input
- Ambiguous repairs where multiple valid interpretations exist may produce incorrect structure
- Network or payment authorization failure returns HTTP 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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