# Deterministic A2A Broken-JSON Repair & Schema Validator

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

Repairs truncated, malformed, or markdown-wrapped JSON strings (trailing commas, single quotes, fences) so multi-agent pipelines receive valid, parseable JSON

## Facts

- Endpoint: GET https://email-verify.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: email-verify.agentdiet.dev
- Website: https://email-verify.agentdiet.dev
- Canonical page: https://www.zero.xyz/c/email-verify-agentdiet-dev-deterministic-a2a-broken-json-repair-e9e0639c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HeC_jJFFSPViq0DBDFxrI

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 email-verify-agentdiet-dev-deterministic-a2a-broken-json-repair-e9e0639c
```

Example prompt: This JSON string from my LLM just crashed my pipeline — can you deterministically repair it and give me back valid JSON? Here it is: ```{name: 'Alice', age: 30,}```

## When to prefer this

Choose this endpoint when you need deterministic, rule-based JSON repair rather than LLM-based inference — ideal for multi-agent pipelines where consistency and predictability matter more than creative reconstruction. Best when dealing with common LLM output artifacts like trailing commas, markdown code fences, and single-quote delimiters rather than semantically corrupted data.

## Known failure modes

- JSON too severely truncated to infer structure — returns error indicating unrecoverable input
- Input is not JSON-like at all (plain text, binary) — returns validation failure
- Ambiguous schema inference from heavily malformed input may produce incorrect but technically valid JSON
- Empty or whitespace-only raw_json input returns a 400-level error
- Network timeout on large payloads

## 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://email-verify.agentdiet.dev/v1/json-validator)

## Output

Returns a repaired, valid JSON object with the corrected structure, ready for downstream parsing — malformed syntax like trailing commas, single quotes, markdown fences, and truncation artifacts are 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/email-verify-agentdiet-dev-deterministic-a2a-broken-json-repair-e9e0639c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from email-verify.agentdiet.dev](https://www.zero.xyz/host/email-verify.agentdiet.dev/llms.txt)