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Ledgerbell onchain alerts

by ledgerbell.quietworklabs.workers.dev · remote · no sign-in to list tools · v0.4.0 · published by dev.workers.quietworklabs.ledgerbell

Webhook alerts for EVM wallets, contract admin changes, Safe queues and custom events.

Deletes · 1Final · 2Changes · 2
CompareRegistry entry

6 tools: 1 can delete or cancel things, 2 do something that can't be undone, 2 change things and 1 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http ledgerbell https://ledgerbell.quietworklabs.workers.dev/mcp

Findings

Matches of fixed checks, with the text they matched.

1 info

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

6 tools

Deletes or cancels 1Claude Code: deny
  • delete_watchStop and delete a watch.No findings

    Why it is in this group

    • The name "delete_watch" says "delete": a word for removing or ending something.
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Stop and delete a watch. Free.

    Annotations the server declares

    • destructiveHint: true
Can't be undone 2Claude Code: ask
  • create_api_keyCreate a new free-plan API key.1 finding

    Why it is in this group

    • The name "create_api_key" says "create": a word for a change.
    • The description says "cannot be recovered".

    Findings

    • Info

      The description mentions "credential".

      Matched text

      description: "...e-plan API key. Save it: it is the only credential for your watches and cannot be recovere..."

      What this check looks for
    Description, as the server wrote it
    Create a new free-plan API key. Save it: it is the only credential for your watches and cannot be recovered. Free.
  • test_watchSend a test alert to a watch's webhook (5 per hour).No findings

    Why it is in this group

    • The description's first verb is "send": a word for sending, and what is sent cannot be taken back.
    Description, as the server wrote it
    Send a test alert to a watch's webhook (5 per hour). Free.
Changes things 2Claude Code: ask
  • add_watchStart watching an address.No findings

    Why it is in this group

    • The name "add_watch" says "add": a word for a change.
    Description, as the server wrote it
    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.

    Annotations the server declares

    • openWorldHint: true
  • buy_pro_6dAdds 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.No findings

    Why it is in this group

    • The description's first verb is "add": a word for a change.
    Description, as the server wrote it
    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).
Only reads 1Claude Code: allow
  • list_watchesShow plan (free/pro), limits, alerts today and all watches for a key.No findings

    Why it is in this group

    • The name "list_watches" says "list": a word for reading.
    Description, as the server wrote it
    Show plan (free/pro), limits, alerts today and all watches for a key. Free.

    Annotations the server declares

    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.4.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http ledgerbell https://ledgerbell.quietworklabs.workers.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__ledgerbell__list_watches"
    ],
    "ask": [
      "mcp__ledgerbell__create_api_key",
      "mcp__ledgerbell__add_watch",
      "mcp__ledgerbell__test_watch",
      "mcp__ledgerbell__buy_pro_6d"
    ],
    "deny": [
      "mcp__ledgerbell__delete_watch"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as ledgerbell. Review it before you use it.