# WRAITH Whale Signals – Whale Prints Feed

> WRAITH Whale Signals – Whale Prints Feed is a paid API for AI agents from whale-signals.whalesignals.workers.dev, paid per call via x402, $0.02/call, status down (last checked 2026-10-20).

Returns the largest recent Bybit perpetual futures trades, showing symbol, side (long/short), price, size, USD notional, size class, and timestamp for each whale-level print

## Facts

- Endpoint: GET https://whale-signals.whalesignals.workers.dev/data/whale-prints?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: down
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/wraith-whale-signals-whale-prints-feed-e51a7382
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p6jCzyucNpz4141zLpfvL

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 wraith-whale-signals-whale-prints-feed-e51a7382
```

Example prompt: Pull the latest whale prints from WRAITH right now — I want to see which symbols the biggest Bybit perp traders are hitting, which side they're on, the USD notional, and what size class they fall into.

## When to prefer this

Choose this endpoint when you need real-time, pre-processed whale trade data from Bybit perpetual futures without building your own trade-size filtering pipeline. It is ideal for agents that need directional bias signals from large traders before entering a position, or for monitoring dashboards that track smart money flow. Prefer this over raw exchange WebSocket feeds when you want clean, classified, immediately actionable data with size labels and USD notionals already computed.

## Known failure modes

- No data returned if Bybit API is temporarily unavailable or rate-limited
- Stale data if the upstream feed has not refreshed recently
- Empty result set during low-volatility periods with no qualifying whale-sized trades
- HTTP 402 Payment Required if the x402 micropayment is not included or fails
- Timeout if the Cloudflare Worker cold-starts under load

## How this service works

See which side the largest traders are on before the move — symbol, side, price, size, USD notional, size class, timestamp for the biggest recent Bybit perp trades

## Output

A list of the most recent large Bybit perpetual futures trades, each containing: trading symbol (e.g. BTCUSDT), trade side (buy/sell or long/short), execution price, contract size, USD notional value, a size class label (e.g. medium, large, mega whale), and timestamp of the trade.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [],
 "properties": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/wraith-whale-signals-whale-prints-feed-e51a7382/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from whale-signals.whalesignals.workers.dev](https://www.zero.xyz/host/whale-signals.whalesignals.workers.dev/llms.txt)