# 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).

Repairs malformed, truncated, or markdown-wrapped JSON strings (trailing commas, single quotes, code fences) into valid JSON for use in multi-agent pipelines

## Facts

- Endpoint: GET https://domain-osint.agentdiet.dev/v1/json-normalizer?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-ff32f35f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VtxvorsqNHoSO4f54Q82i

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-ff32f35f
```

Example prompt: This JSON from the LLM is broken — it has trailing commas and markdown fences around it. Can you repair it so it parses correctly: ```{"name": "Alice", "age": 30,}```?

## When to prefer this

Choose this endpoint when your multi-agent pipeline receives JSON from an LLM that frequently produces markdown-wrapped, trailing-comma, or single-quoted output and you need a deterministic (non-LLM) repair step that is cheap, fast, and idempotent. Prefer it over writing custom regex fixers or calling another LLM to reformat JSON, especially when pipeline reliability and cost per call ($0.002) matter.

## Known failure modes

- Input is so severely truncated that valid JSON cannot be reconstructed — returns error or best-effort partial result
- Input is not JSON-like at all (plain text, binary) — may return an error indicating unparseable input
- Ambiguous repairs where multiple valid interpretations exist may produce incorrect structure
- Network or payment authorization failure returns HTTP 402 or 5xx

## 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/json-normalizer)

## Output

A repaired, valid JSON object derived from the malformed input string, with syntax errors corrected — trailing commas removed, markdown fences stripped, single quotes converted to double quotes, and truncation handled where possible.

## 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-ff32f35f/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)