# Losbeto Whale Alert — On-Chain Large Transaction Monitor

> Losbeto Whale Alert — On-Chain Large Transaction Monitor is a paid API for AI agents from losbeto-production-dd7c.up.railway.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns alerts about large cryptocurrency transactions (whale movements) detected on-chain, paid via x402 USDC micropayment.

## Facts

- Endpoint: GET https://losbeto-production-dd7c.up.railway.app/whale-alert
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/losbeto-whale-alert-on-chain-large-transaction-monitor-d27d31d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_B_wWrDyTdkgK3TSlu4YeR

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-whale-alert-on-chain-large-transaction-monitor-d27d31d4
```

Example prompt: Can you pull the latest whale alerts right now — I want to see any large crypto transactions that have been detected on-chain recently so I can spot big money movements before I make my next trade.

## When to prefer this

Choose this endpoint when you need real-time or near-real-time large on-chain transaction signals to inform trading decisions, especially if you are already operating within an x402 micropayment-enabled agent stack using USDC on Solana or Base. It is particularly suited for AI trading agents that need cheap, pay-per-call whale intelligence without a subscription commitment.

## Known failure modes

- 402 Payment Required if x402 USDC micropayment not provided or fails
- Empty result set if no whale transactions have been detected in the monitored window
- Service unavailability due to Railway hosting downtime
- Stale or cached data if the underlying chain data source is lagging
- Malformed JSON response if the upstream blockchain data provider has issues

## 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 containing recent large on-chain transaction alerts, likely including transaction amounts, wallet addresses involved, the blockchain network, asset type, and timestamp of detection.

## 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-whale-alert-on-chain-large-transaction-monitor-d27d31d4/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)