# AgentDiet JSON Repair

> 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

## Facts

- Endpoint: GET https://prompt-guard.agentdiet.dev/v1/json-repair?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402, MPP
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agentdiet-json-repair-6f276cde
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gtuTzO6EY6JLmKIQYNhwU

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability agentdiet-json-repair-6f276cde
```

Example prompt: Can you repair this broken JSON for me? It has unbalanced brackets and missing quotes and I can't parse it: {name: 'Alice', age: 30, scores: [1, 2,}

## When to prefer this

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.

## Known failure modes

- 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

## 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%)

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "POST"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "raw_json": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {},
  "status": "ok",
  "roi_proof": {
   "compression_ratio_pct": 91.4
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agentdiet-json-repair-6f276cde/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prompt-guard.agentdiet.dev](https://www.zero.xyz/host/prompt-guard.agentdiet.dev/llms.txt)