# Deterministic A2A Broken-JSON Repair & Schema Validator

> Deterministic A2A Broken-JSON Repair & Schema Validator is a paid API for AI agents from workflows.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://workflows.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: workflows.agentdiet.dev
- Website: https://workflows.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/workflows-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-a6787da5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_205XlUc9qtWg9rvZS-14M

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 workflows-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-a6787da5
```

Example prompt: This JSON string from my LLM has trailing commas and markdown fences and is crashing my pipeline — can you repair it and give me back clean, valid JSON? Here it is: ```{"name": "Alice", "age": 30,}```

## When to prefer this

Choose this endpoint when your multi-agent pipeline receives LLM-generated JSON that fails standard parsing due to common issues like trailing commas, markdown code fences, single quotes, or truncation. It is deterministic (not generative), making it reliable for production pipelines where consistency matters. Prefer it over ad-hoc prompt engineering or regex hacks when you need a robust, paid, auditable repair step in an automated workflow.

## Known failure modes

- JSON is so severely malformed it cannot be deterministically repaired — returns error
- Input is not JSON at all (e.g. plain text or binary) — repair cannot be attempted
- raw_json parameter missing or empty — returns 400 validation error
- Payment not completed via x402 — returns 402 Payment Required

## 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://workflows.agentdiet.dev/v1/structured-output)

## Output

A repaired, valid JSON object with all syntax errors corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncated structures closed — ready for direct use in downstream agent pipelines.

## 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/workflows-agentdiet-dev-deterministic-a2a-broken-json-repair-schema-a6787da5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from workflows.agentdiet.dev](https://www.zero.xyz/host/workflows.agentdiet.dev/llms.txt)