# Deterministic A2A Broken-JSON Repair & Schema Validator

> Deterministic A2A Broken-JSON Repair & Schema Validator is a paid API for AI agents from shopify-intel.agentdiet.dev, paid per call via MPP, $0.002/call, status unknown (last checked 2026-10-21).

Repairs truncated or malformed LLM JSON outputs (trailing commas, markdown fences, single quotes) so multi-agent pipelines never crash

## Facts

- Endpoint: GET https://shopify-intel.agentdiet.dev/v1/json-validator?utm_source=zero.xyz
- Price: $0.002/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-intel.agentdiet.dev
- Website: https://shopify-intel.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-intel-agentdiet-dev-deterministic-a2a-broken-json-repair-ec4a0e57
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_owSMoEotnfAS4181tpx3B

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 shopify-intel-agentdiet-dev-deterministic-a2a-broken-json-repair-ec4a0e57
```

Example prompt: This JSON from my LLM has trailing commas and markdown code fences — can you repair it so it's valid and parseable? Here's the raw string: ```json {"name": "test", "value": 42, } ```

## When to prefer this

Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails parsing due to common formatting errors like trailing commas, markdown code fences, single quotes, or truncation. It is purpose-built for deterministic repair (not probabilistic LLM re-generation), making it reliable for production pipelines where consistency matters. Prefer this over asking an LLM to fix JSON when you need guaranteed, reproducible repair logic without additional token cost or hallucination risk.

## Known failure modes

- JSON too severely malformed to recover — returns error indicating repair was not possible
- Empty or null raw_json input — returns validation error for missing required field
- Input is not JSON at all (e.g. plain text or binary) — repair attempt may fail or return unexpected structure
- Network or service unavailability — returns HTTP error or timeout
- Payment/402 failure if x402 credentials are not properly configured

## 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://shopify-intel.agentdiet.dev/v1/json-validator)

## Output

A repaired, valid JSON object with syntax errors corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed — returned as a parsed JSON response ready for downstream consumption.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "raw_json"
 ],
 "properties": {
  "raw_json": {
   "type": "string",
   "minLength": 1,
   "description": "Malformed, truncated, or markdown-wrapped JSON string to deterministically repair"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/shopify-intel-agentdiet-dev-deterministic-a2a-broken-json-repair-ec4a0e57/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-intel.agentdiet.dev](https://www.zero.xyz/host/shopify-intel.agentdiet.dev/llms.txt)