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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 alpha-stream.agentdiet.dev, paid per call via MPP, $0.002/call, status unknown (last checked 2026-10-21).
Repairs malformed, truncated, or markdown-wrapped LLM JSON outputs (trailing commas, single quotes, markdown fences) so multi-agent pipelines can parse structured data 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://alpha-stream.agentdiet.dev/v1/structured-output)
Output
Returns a repaired, valid JSON object parsed from the originally malformed input string, with syntax errors corrected — including removal of trailing commas, conversion of single quotes to double quotes, stripping of markdown code fences, and recovery of truncated structures.
Example use cases
Fix crashed agent pipeline JSON
“My agent pipeline just broke because the LLM returned malformed JSON with trailing commas — can you repair this raw string so I can continue processing: '{"status": "ok", "results": [1, 2, 3,]}'?”
Strip markdown fences from LLM output
“The model wrapped its response in triple backticks and the JSON has single quotes instead of double quotes — can you clean it up and give me valid JSON? Here's what I got: ```{'user': 'bob', 'score': 42}```”
Validate structured output before downstream use
“Before I pass this LLM-generated JSON to my next agent, can you run it through the JSON repair service to make sure it's well-formed? The string is: '{"items": ["a", "b"], "count": 2'”
Technical details
Endpoint
GEThttps://alpha-stream.agentdiet.dev/v1/structured-output?utm_source=zero.xyzWhen to prefer
Choose this endpoint when an LLM or AI agent in your pipeline returns structured output that fails JSON.parse() due to common syntax issues like trailing commas, single quotes, markdown wrapping, or truncation — especially in automated multi-agent workflows where crashes are costly. Prefer this over manual regex fixes or general-purpose parsers when you need deterministic, rule-based repair rather than probabilistic reconstruction.
Side effects
- Input is so severely truncated or corrupted that a valid repair is not deterministically possible
- Input string is empty or does not resemble JSON at all
- Ambiguous repair paths where multiple valid JSON structures could be inferred
- Network or service timeout for very large malformed payloads
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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