# Deterministic A2A Broken-JSON Repair & Schema Validator

> Deterministic A2A Broken-JSON Repair & Schema Validator is a paid API for AI agents from shopify-spy.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 can reliably process structured outputs.

## Facts

- Endpoint: GET https://shopify-spy.agentdiet.dev/v1/structured-output?utm_source=zero.xyz
- Price: $0.002/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: shopify-spy.agentdiet.dev
- Website: https://shopify-spy.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/shopify-spy-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-e8d8c0d6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kj_RLJDy4q6ndEF45NHzj

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-spy-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-e8d8c0d6
```

Example prompt: This JSON from the LLM response is broken — it has trailing commas and markdown code fences around it — can you repair it so I can use it downstream: ```json {"name": "Alice", "age": 30,} ```

## When to prefer this

Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails standard JSON.parse due to common LLM formatting errors (trailing commas, markdown code fences, single quotes, minor truncation). Ideal for deterministic, rule-based repair rather than AI-based reinterpretation of intent. Best suited for single JSON repair calls in real-time pipeline contexts rather than batch validation workflows.

## Known failure modes

- Input is so severely truncated that repair is ambiguous or impossible, returning an error or best-guess output
- Input is not JSON-like at all (plain text, binary), causing repair to fail
- Deeply nested or very large JSON strings may hit query parameter length limits via GET method
- Repaired output may not match original schema intent if truncation removed critical keys

## 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-spy.agentdiet.dev/v1/structured-output)

## Output

Returns a repaired, valid JSON object with malformed syntax corrected — trailing commas removed, markdown fences stripped, single quotes normalized to double quotes, and truncated structures closed where possible — ready for downstream parsing.

## 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-spy-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-e8d8c0d6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from shopify-spy.agentdiet.dev](https://www.zero.xyz/host/shopify-spy.agentdiet.dev/llms.txt)