# ACHILLES Risk Oracle

> ACHILLES Risk Oracle 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).

Evaluates the risk of a proposed agent action and returns a risk score, contributing factors, and a recommendation

## Facts

- Endpoint: POST https://achillesalpha.com/x402/riskoracle
- 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-risk-oracle-4962879b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2nvH2sHJAO88gIzGrEmAj

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-risk-oracle-4962879b -d '<json body>'
```

Example prompt: Before my agent 'agt-7f3x' executes that $500 USDC swap on Uniswap, run it through the ACHILLES Risk Oracle and tell me the risk score and whether it recommends proceeding.

## When to prefer this

Use this endpoint when an autonomous AI agent needs a pre-execution risk check before committing to a trade, deployment, or state-changing action — especially in financial or DeFi contexts where the ACHILLES DELPHI intelligence layer is already integrated. Prefer this over generic risk APIs when operating within the ACHILLES agent economy ecosystem.

## Known failure modes

- Missing required agent_id or action field returns 400 validation error
- Unknown or unauthorized agent_id may return 401 or 403
- Malformed context object may cause 422 unprocessable entity
- Service unavailable during downtime returns 503
- Payment failure via x402 protocol prevents request from being fulfilled

## 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 numeric risk score, an array of risk factor strings explaining the score, and a text recommendation on whether the agent should proceed with the proposed action.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "action",
  "agent_id"
 ],
 "properties": {
  "value": {
   "type": "number",
   "description": "Value involved"
  },
  "action": {
   "type": "string",
   "description": "Proposed action to evaluate"
  },
  "context": {
   "type": "object"
  },
  "agent_id": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "factors": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "risk_score": {
   "type": "number"
  },
  "recommendation": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/achilles-risk-oracle-4962879b/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)