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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 token-intel.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://token-intel.agentdiet.dev/v1/malformed-json-healer)
Output
Returns a repaired, valid JSON object derived from the malformed input string, with all syntax errors (trailing commas, markdown fences, single quotes, truncations) corrected so the output is immediately parseable by standard JSON parsers.
Example use cases
Fixing LLM output in agent pipeline
“My agent got back this malformed JSON from the language model and the pipeline crashed — it has trailing commas and is wrapped in markdown fences. Can you repair it so I can keep processing? Here's the raw string: ```{"status": "ok", "items": ["a", "b",],}```”
Recovering truncated JSON response
“The API returned a JSON string that got cut off mid-response — it's missing the closing brackets. Can you fix this truncated JSON so it's valid and parseable? Raw input: {"user": {"id": 42, "name": "Bob"”
Sanitizing single-quoted JSON from scraper
“My web scraper returned JSON using single quotes instead of double quotes and the JSON parser keeps rejecting it. Can you clean it up and give me valid JSON back? Here's the string: {'product': 'Widget', 'price': 9.99}”
Technical details
Endpoint
GEThttps://token-intel.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need deterministic, rule-based JSON repair (not AI-generated guessing) for LLM pipeline outputs that have predictable syntax issues like trailing commas, markdown fences, or single-quote keys. Prefer it over manual regex fixes when you need a reliable, pay-per-call microservice that integrates into A2A and MCP workflows natively.
Side effects
- Input so severely malformed that deterministic repair is impossible — returns error indicating unrecoverable JSON
- Empty or whitespace-only raw_json parameter — returns validation error
- Input that is not JSON at all (e.g. plain prose) — may return parse failure or best-effort empty object
- Network or upstream service errors — returns HTTP 5xx or timeout
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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