# Deterministic A2A Broken-JSON Repair & Schema Validator

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

Deterministically repairs malformed, truncated, or markdown-wrapped LLM JSON outputs so multi-agent pipelines can safely continue processing without crashes.

## Facts

- Endpoint: GET https://domain-osint.agentdiet.dev/v1/repair?utm_source=zero.xyz
- Price: $0.002/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Provider: domain-osint.agentdiet.dev
- Website: https://domain-osint.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/domain-osint-agentdiet-dev-deterministic-a2a-broken-json-repair-544ae7e3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xm1SXxSZ5pYRpyi5CNhm-

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 domain-osint-agentdiet-dev-deterministic-a2a-broken-json-repair-544ae7e3
```

Example prompt: This JSON from the LLM response is malformed — it has trailing commas and is wrapped in markdown fences. Can you repair it so it's valid JSON I can actually use? Here it is: ```json {"name": "Alice", "score": 42, } ```

## When to prefer this

Choose this endpoint when you need fast, deterministic JSON repair in a multi-agent or LLM pipeline where outputs frequently contain trailing commas, markdown fences, single quotes, or truncation artifacts. Prefer this over writing custom repair logic when you need a reliable, pay-per-call microservice that handles the most common LLM JSON failure modes without maintaining your own parser.

## Known failure modes

- Input is so severely truncated or corrupted that no deterministic repair is possible — returns an error or partial result
- Input is not JSON-like at all (e.g. plain prose) — repair may fail or produce unexpected output
- Very large or deeply nested malformed JSON may hit query string length limits due to the GET method
- Ambiguous repairs where multiple valid interpretations exist may produce unexpected canonical form

## 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://domain-osint.agentdiet.dev/v1/repair)

## Output

A repaired, valid JSON object derived from the submitted malformed input. The response contains the corrected JSON with issues like trailing commas, markdown fences, single quotes, and truncation resolved deterministically.

## 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/domain-osint-agentdiet-dev-deterministic-a2a-broken-json-repair-544ae7e3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from domain-osint.agentdiet.dev](https://www.zero.xyz/host/domain-osint.agentdiet.dev/llms.txt)