Ledgerbell onchain alerts

Reliability

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How to connect

Add it to any MCP client that supports remote servers.

{
  "mcpServers": {
    "ledgerbell-onchain-alerts": {
      "type": "http",
      "url": "https://ledgerbell.quietworklabs.workers.dev/mcp"
    }
  }
}

6 tools

• create_api_key

  Create a new free-plan API key. Save it: it is the only credential for your watches and cannot be recovered. Free.

• add_watch

  Start watching an address. kind=wallet|contract|event|safe_queue. For kind=event pass event as a signature like Transfer(address,address,uint256) or a topic0. Optional token (wallet kind: only this ERC-20) and label. Free.

• list_watches

  Show plan (free/pro), limits, alerts today and all watches for a key. Free.

• test_watch

  Send a test alert to a watch's webhook (5 per hour). Free.

• delete_watch

  Stop and delete a watch. Free.

• buy_pro_6d

  Adds 6 days of Pro to the given key (or creates a new Pro key if none is given): 30 watches, 1,000 alerts/day, Safe queued-transaction alerts, proxy-upgrade reports. Call again to extend. Price: $1 USDC per call via x402 (Base).

Security scan

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