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Calculator

MCP server · slettmayer

  • On your machine

Calculator is an MCP server published by slettmayer. Marketplaces we read that list it: 1 (Official MCP Registry). We first saw it on 2026-10-11 and have recorded no change since. As of our marketplace pass on 2026-10-11.

In its own words, on Official MCP Registry:

Exact arithmetic: one calculator tool over an AST allowlist, with integers exact at any size.

Marketplaces
1
Where it runs
On your machine calc-mcp-server
Largest published figure
0 Forks (GitHub) · Official MCP Registry
First seen
2026-10-11
Last change
None recorded
Verified mark
Not marked

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 0.1.9 Forks (GitHub): 0
Stars (GitHub): 0
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What it can do

Runs on your machine: the AI tool starts this PyPI package locally: calc-mcp-server

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

What changed

Nothing has moved on this plugin since we started watching it.

The publisher

slettmayer · Repository: github.com/slettmayer/calc-mcp-server

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Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and can put its remote endpoint on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built