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How many tools should an MCP server have?

This story is from 2026-09-14. It is preserved in the archive; the latest stories are on the live feed.

If you maintain an MCP server, at some point you ask this. You've got twenty tools, you're about to add five more, and something feels wrong about it — but you can't say what, and there's no guidance anywhere. I read the tool schemas of 4,951 public MCP servers to answer it. 87,146 tools, 270,487 p…

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  1. 2026-09-14 06:52 · DEV Community — AI
    How many tools should an MCP server have?

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