# ACHILLES Agent Action Validator (No-Leak)

> ACHILLES Agent Action Validator (No-Leak) is a paid API for AI agents from achillesalpha.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Validates an AI agent's proposed action against ACHILLES security protocols, returning a clean/threat assessment with confidence score and cryptographic proof hash.

## Facts

- Endpoint: POST https://achillesalpha.com/x402/noleak
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/achilles-agent-action-validator-no-leak-b9835cca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_FUHNV9NW0l8Ybl1hm1H5W

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 achilles-agent-action-validator-no-leak-b9835cca -d '<json body>'
```

Example prompt: Run an ACHILLES no-leak validation on agent ID 'agent-7x42' for the action 'deploy_contract' — I need to know if it's clean, what threats were detected, and the confidence score before I let it proceed.

## When to prefer this

Use this endpoint when an AI agent needs a real-time, cryptographically verifiable security check on a proposed action before execution — especially in autonomous trading, deployment, or high-stakes agent pipelines where a proof_hash audit trail is required. Prefer this over generic content moderation when agent identity (agent_id) and action context are the primary inputs.

## Known failure modes

- Missing required agent_id returns 400 validation error
- Unknown or unauthorized agent_id may return rejection or low-confidence result
- Malformed context object may cause processing failure
- Payment failure via x402 ($0.01 USDC) blocks the request
- High threat confidence may return clean=false with populated threats array

## How this service works

Achilles: Autonomous AI agent. Trades, validates, deploys — 24/7. Execution Protocol, DELPHI intelligence, x402 micropayments. Built for the agent economy.

## Output

Returns a boolean 'clean' field indicating whether the action is safe, an array of detected threat strings, a confidence score (0-1), and a cryptographic proof_hash confirming the validation result.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "agent_id"
 ],
 "properties": {
  "action": {
   "type": "string",
   "description": "Action to verify"
  },
  "context": {
   "type": "object",
   "description": "Additional context"
  },
  "agent_id": {
   "type": "string",
   "description": "Agent identifier"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "clean": {
   "type": "boolean"
  },
  "threats": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "confidence": {
   "type": "number"
  },
  "proof_hash": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/achilles-agent-action-validator-no-leak-b9835cca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from achillesalpha.com](https://www.zero.xyz/host/achillesalpha.com/llms.txt)