# SIBYL Score Lookup

> SIBYL Score Lookup is a paid API for AI agents from sibyl-x402.x402-aero-scan.workers.dev, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-13).

Returns a SIBYL risk/reputation score for a given subject via a paid lookup

## Facts

- Endpoint: POST https://sibyl-x402.x402-aero-scan.workers.dev/sibyl
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sibyl-score-lookup-bd21b934
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Uh1nihcEUOBz6DQYJlu90

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 sibyl-score-lookup-bd21b934 -d '<json body>'
```

Example prompt: Can you get me the SIBYL score for the address 0xAbC123... so I know how risky it is to interact with them?

## When to prefer this

Use this endpoint when you need a quick, paid risk or reputation score for a specific address or entity — especially in a Web3/blockchain compliance or due-diligence context where the SIBYL scoring model is specifically desired.

## Known failure modes

- Invalid or missing subject identifier returns an error
- Insufficient payment (less than $0.10 USDC via x402) results in 402 Payment Required
- Unknown address or entity may return a null or low-confidence score
- Network or worker timeout may result in a 5xx error

## How this service works

SIBYL Score — paid lookup

## Output

A SIBYL risk/reputation score for the queried entity, indicating trustworthiness or risk level based on on-chain or off-chain signals.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sibyl-score-lookup-bd21b934/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sibyl-x402.x402-aero-scan.workers.dev](https://www.zero.xyz/host/sibyl-x402.x402-aero-scan.workers.dev/llms.txt)