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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 llms-generator.agentdiet.dev, paid per call via MPP, $0.002/call, status unknown (last checked 2026-10-21).
Repairs truncated or malformed LLM-generated JSON (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash on bad output.
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://llms-generator.agentdiet.dev/v1/malformed-json-healer)
Output
Returns a repaired, valid JSON object that has been corrected for common LLM output issues including trailing commas, markdown code fences, single-quote delimiters, and truncation — ready for safe downstream consumption in agent pipelines.
Example use cases
Fix LLM pipeline JSON crash
“My agent just got back this malformed JSON from the model and the pipeline crashed — can you repair it so it parses correctly? The broken string is: {"name": "Bob", "score": 0.92,}”
Strip markdown fences from model output
“The LLM wrapped its JSON in triple backticks and now my parser is failing. Can you clean up this output and give me valid JSON? Here it is: ```json
{'status': 'ok', 'results': [1, 2, 3],}
```”
Normalize single-quote JSON from agent
“One of my sub-agents returned JSON using single quotes instead of double quotes and it won't validate. Please repair this into proper JSON: {'user': 'carol', 'active': true, 'tags': ['a', 'b']}”
Technical details
Endpoint
GEThttps://llms-generator.agentdiet.dev/v1/malformed-json-healer?utm_source=zero.xyzWhen to prefer
Use this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails standard JSON.parse due to common formatting issues like trailing commas, markdown fences, or single quotes. Ideal for agent orchestration layers that need deterministic, rule-based repair rather than probabilistic LLM re-prompting. Prefer over re-querying the LLM when you need fast, cheap, and deterministic correction.
Side effects
- JSON too malformed to deterministically repair — returns error indicating repair failure
- Empty or missing raw_json parameter — returns validation error
- Input string is not JSON-like at all — may return error or empty object
- Extremely long truncated JSON may fail structural inference
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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