# Losbeto Subscribe Whale

> Losbeto Subscribe Whale is a paid API for AI agents from losbeto-production-dd7c.up.railway.app, paid per call via x402, $19.99/call, status unknown (last checked 2026-09-14).

Subscribes to or retrieves whale-tier tracking data for large on-chain traders via a paid x402 endpoint

## Facts

- Endpoint: GET https://losbeto-production-dd7c.up.railway.app/subscribe-whale
- Price: $19.99/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-subscribe-whale-ec287eac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J-yqdcB2mMHoGPOoHqF-f

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 losbeto-subscribe-whale-ec287eac
```

Example prompt: Subscribe me to Losbeto's whale tracking feed so I get alerts whenever large on-chain traders make big moves on Solana or Base.

## When to prefer this

Choose this endpoint when you need to monitor or subscribe to large on-chain trader (whale) activity specifically on Solana and Base networks, and you are operating within an x402 payment-capable agent that can pay $19.99 USDC per call. Prefer this over generic blockchain explorers when you want pre-processed whale signals rather than raw transaction data.

## Known failure modes

- Payment not included or invalid — 402 payment required with $19.99 USDC
- Malformed request properties — returns error on invalid input schema
- Service unavailable on Railway hosting — 503 or timeout
- No whale activity matching criteria — empty or null data returned
- Duplicate subscription attempt — may return conflict or existing subscription state

## How this service works

Losbeto: 67 endpoints x402 monetizados. Solana + Base. USDC micropayments para AI agents. Preços a partir de $0.003.

## Output

A JSON response confirming the whale subscription and potentially returning whale activity data, large trader signals, or wallet movement alerts for on-chain activity on Solana and Base networks.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/losbeto-subscribe-whale-ec287eac/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from losbeto-production-dd7c.up.railway.app](https://www.zero.xyz/host/losbeto-production-dd7c.up.railway.app/llms.txt)