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What MCP servers let an agent do, and what changes.

MCP servers can add or change tools at any time, and an agent can use a new tool without anyone reviewing it. One new tool can let it delete data or move money. Here is what each server lets an agent do, and what changed.

Current status

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Official vendor servers

These statuses track each server's tools, not uptime. "Changed" means its tools changed in the last 30 days. "Can do more" means a change made a tool able to do more, by our cautious count. Every change from the last 7 days.

How to read this
  • Once a day, Stackduke connects to each server the way any MCP client would, with no account and no sign-in, and lists its tools. It never runs them. A change made and undone between two checks is not seen.
  • Every server here lists its tools with no sign-in. A server may offer other tools to an account that signs in, and those are not shown.
  • Tool names are shown as each server gives them. Descriptions are never shown, because they are written for models and may try to steer them.
  • What a tool is counted as doing is Stackduke's cautious reading of the server's labels, the tool's name and its description. Where they disagree, it takes whichever says the tool can do most, so it overcounts on purpose.
  • This page does not say that any server is safe, and it does not list what a server cannot do.
  • The scanner and every check are open source at github.com/Stackduke/mcp-scanner.