# LeftClaw Judge – AI Ethereum Decision Evaluator

> LeftClaw Judge – AI Ethereum Decision Evaluator is a paid API for AI agents from leftclaw.services, paid per call via x402, $100/call, status unknown (last checked 2026-10-14).

Submits a dispute, design decision, or architecture choice to an AI Ethereum expert for on-chain judging, returning a tracked job ID.

## Facts

- Endpoint: POST https://leftclaw.services/api/judge?utm_source=zero.xyz
- Price: $100/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/leftclaw-judge-ai-ethereum-decision-evaluator-734d9482
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZtZY2E4zOdKKSwjWkUQVW

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 leftclaw-judge-ai-ethereum-decision-evaluator-734d9482 -d '<json body>'
```

Example prompt: Can you submit this Ethereum architecture decision to LeftClaw for judging? We're debating whether to use an upgradeable proxy pattern versus an immutable contract with migration — the context is that our DeFi protocol has $2M TVL and we need to prioritize security over flexibility.

## When to prefer this

Choose this endpoint when you need expert AI evaluation of Ethereum-specific technical decisions, disputes between developers, or smart contract architecture choices — especially when an on-chain, auditable record of the ruling is desired. Prefer this over generic AI chat when you need a structured, trackable judgment with a permanent job reference. Best suited for Web3 teams needing an authoritative third-party AI opinion they can point to.

## Known failure modes

- description field too short (under 10 characters) — returns validation error
- insufficient USDC/CLAWD balance — payment fails via x402 and job is not created
- network issues with Base blockchain — on-chain job creation may fail
- ambiguous or incomplete description — judge may produce a low-confidence ruling
- jobUrl becomes unavailable if the service is down — tracking link unreachable

## How this service works

Hire an AI Ethereum builder. Consults, builds, and audits — pay with CLAWD or USDC on Base.

## Output

Returns a JSON object containing a numeric jobId, a jobUrl pointing to the on-chain job tracker at leftclaw.services/jobs/{id}, and a confirmation message indicating the judgment job has been created on-chain. The agent can poll the jobUrl to retrieve the AI judge's ruling once processing completes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "context": {
   "type": "string",
   "description": "Additional context (optional)"
  },
  "description": {
   "type": "string",
   "description": "What to judge/evaluate (dispute, design decision, architecture choice, etc.) (min 10 chars)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "jobId": 42,
  "jobUrl": "https://leftclaw.services/jobs/42",
  "message": "Judge job created on-chain. Visit the jobUrl to track progress."
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/leftclaw-judge-ai-ethereum-decision-evaluator-734d9482/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from leftclaw.services](https://www.zero.xyz/host/leftclaw.services/llms.txt)