ToolLabel Watch Made by Fernlot

Change watch for MCP servers you have approved

What can this MCP server change, and did that change since you approved it?

See each tool's label against what its schema allows, dated by version. Watch up to 3 servers free; $19 a month for 25, with alerts by email and API (not on sale yet).

Public servers that need no login. We read the tool list and never call a tool. Software reads and labels the tools; this page is automated.

Sample record · example data, not a real server

acme-tickets

Latest version v2.3.0 Checked 12 Nov 2026 You approved v2.2.0 on 14 Oct 2026

Changed since you approved it: 1 new tool that can send.

send_digest arrived in v2.3.0 on 3 Nov. Its label says read-only; its schema takes recipients and a body, which points to sending mail.

Versions, newest first

  1. v2.3.03 Nov 2026

    Changed 1 tool added, none removed.

    + send_digest  claims: read-only  schema implies: send
  2. v2.2.121 Oct 2026

    No tool added or removed. The description of get_ticket was edited.

  3. v2.2.014 Oct 2026

    Baseline The version you approved. 5 tools recorded.

Tools in v2.3.0

ToolServer saysSchema impliesCheckSince
send_digest Read-onlyreadOnlyHint: true Sendrecipients, body Disagrees v2.3.0
delete_ticket WritedestructiveHint: false Deleteticket_id, permanent Disagrees v2.2.0
close_ticket WritereadOnlyHint: false Writeticket_id, status Agrees v2.2.0
add_comment Not declared Writeticket_id, text No claim to check v2.2.0
get_ticket Read-onlyreadOnlyHint: true Readticket_id Agrees v2.2.0
search_tickets Read-onlyreadOnlyHint: true Readquery, limit Agrees v2.2.0

Labels are findings from the tool's name, description and input schema, not a guarantee of what the server does. Each server watched gets a page like this, readable without an account.

How a label is decided, and what we keep

How a label is decided

Software reads the server's tools/list and compares the label the server declares with what the tool's name, description and input schema suggest: read, write, delete or send. Where they differ, the row says "Disagrees". Software, not a person, writes these findings, from keywords, so some will be wrong.

What we keep

  • The server's public tool list, by version and date
  • The server addresses you watch, and an anonymous owner id from your key
  • Never a password, a token or a card

What we do not do

  • Call a tool on any server
  • Watch servers that need a login
  • Promise a server is safe