Watching whale moves in n8n (and when I gave up and built a bot)

说明与用途

作者在 n8n 中构建了无需 API 密钥的大型 BTC 转账和钱包活动监控系统，但由于可扩展性和速率限制，将部分逻辑迁移到专用机器人和公共订阅源。

问题

Monitoring large BTC transfers and wallet activity without API keys, and scaling to many users and chains.

结果

The author achieved real‑time whale‑move alerts without API keys, but scalability and token limits prompted a split into a public feed and a dedicated bot.

工作流

• Schedule a 2‑minute trigger
• Set configuration (thresholds, RPC URLs, chat tokens)
• Check step: fetch latest block and mempool from mempool.space, filter txs ≥ minBtc, dedupe using static data
• Check step: poll native balances via JSON‑RPC, compare to previous state, alert on change ≥ minChange
• Notify step: send formatted messages to Telegram/Discord if tokens present

证据

Every 2 minutes, Check looks at the newest mined block and the recent mempool, and keeps every transaction moving at least minBtc.

来源

Addresses are comma-separated in Config, with an optional label (binance-hot=0xabc…). Switch chains by changing rpcUrl.

来源

This works well for a handful of addresses. It got painful once I wanted: Many wallets, many users.

来源