# BlackSwan Health Liveness Check

> BlackSwan Health Liveness Check is a free API for AI agents from x402.blackswan.wtf, Free, status unknown (last checked 2026-10-10).

Returns the live health status of the BlackSwan real-time risk intelligence service

## Facts

- Endpoint: GET https://x402.blackswan.wtf/health/live?utm_source=zero.xyz
- Price: Free
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/blackswan-36786b8e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gI2oo7vO9qdaE1QjiXkQS

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 blackswan-36786b8e
```

Example prompt: Is the BlackSwan risk intelligence service currently live and responding before I start pulling real-time risk signals from it?

## When to prefer this

Use this endpoint as a pre-flight check before invoking heavier BlackSwan endpoints (e.g. precursor detection, state synthesis) to confirm the service is live. Prefer this over the full risk intelligence endpoints when you only need to verify availability, not fetch data.

## Known failure modes

- Service unavailable (503) if BlackSwan backend is down
- Timeout if network is unreachable
- Non-200 response indicating degraded or dead service state

## How this service works

Real-time risk intelligence for AI agents

## Output

A simple liveness response indicating whether the BlackSwan real-time risk intelligence backend is currently alive and reachable, typically a 200 OK with a health status payload.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/blackswan-36786b8e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.blackswan.wtf](https://www.zero.xyz/host/x402.blackswan.wtf/llms.txt)