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AgentDiet JSON Repair
x402
AgentDiet JSON Repair is a paid API for AI agents from prompt-guard.agentdiet.dev, paid per call via x402 or MPP, $0.002/call, status unknown (last checked 2026-10-20).
Repairs and normalizes malformed JSON strings, returning a cleaned, valid JSON object with compression metadata
Price / call$0.002
Success—
StatusUnknown
How this service works
15-App Autonomous Business-to-Agent (B2A) API Hub & MCP Suite. Supports Web Distillation, On-Chain Risk, DEX Token Intelligence, B2B Lead Enrichment, Domain OSINT, Email Verification, SEC Filings, GitHub Audits, Prompt Firewall, and native HTTP 402 (x402 Base USDC).
Output
Returns a JSON object with a 'data' field containing the repaired and valid JSON, a 'status' field ('ok' on success), and an 'roi_proof' object containing a compression_ratio_pct indicating how much the input was cleaned/compressed (e.g. 91.4%)
Example use cases
Fix LLM output JSON errors
“The JSON my AI model returned is malformed — it has unquoted keys and a trailing comma. Can you run it through the JSON repair tool and give me back something I can actually parse? Here it is: {user: 'bob', active: true,}”
Recover corrupted API response data
“I got a JSON response from an external API that got truncated and now won't parse. Can you fix it up so I can read the data? The broken string is: {"id":123,"items":[{"name":"widget","price":9.99”
Normalize inconsistent JSON before storage
“Before I store this data, can you clean up this messy JSON that has single quotes, unescaped characters, and missing closing braces? I need it to be valid JSON: {'product':'laptop','specs':{'ram':'16gb','storage':'512gb'}”
Technical details
Endpoint
GEThttps://prompt-guard.agentdiet.dev/v1/json-repair?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you have a malformed or invalid JSON string that needs to be recovered or normalized before it can be parsed or stored. Ideal for fixing LLM-generated JSON output, truncated API responses, or hand-edited JSON files with syntax errors. Prefer this over manual parsing when the JSON structure is mostly intact but has minor to moderate syntax violations.
Side effects
- Input JSON is so malformed it cannot be heuristically repaired — returns error status
- Missing required 'input' field or 'method' field in request body — returns 400-level error
- Input is not JSON at all (e.g. plain text, binary) — may return empty or error result
- Payment not completed via x402 — returns HTTP 402 requiring 0.002 USDC payment on Base network
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"status": "ok",
"roi_proof": {
"compression_ratio_pct": 91.4
}
}
}Tags
x402
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Zero review prompt (fires after every successful call)
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