A TypeScript-based MCP server that implements a robust calculator with precise decimal arithmetic. This server demonstrates core MCP concepts by providing arithmetic operations with support for…
calculator-mcp is an MCP project maintained in the ericvrp/calculator-mcp repository. The maintainer describes its purpose as “A TypeScript-based MCP server that implements a robust calculator with precise decimal arithmetic. This server demonstrates core MCP concepts by providing arithmetic operations with support…”. Read the project documentation for the complete scope.
The project provides a local client configuration using /path/to/calculator-mcp/src/index.ts. Follow the repository’s build and installation steps before copying it, and replace example paths with the paths on your own computer.
Project documentation · Repository · Discovery listing. This profile records the public documentation checked on 2026-10-08.
Check the linked publisher documentation and your connected client's tool list. Names and availability can vary with the server version and account permissions.
| Tool | What it does |
|---|---|
| add | Adds an array of numbers. |
| subtract | Subtracts numbers sequentially from the first. |
| multiply | Multiplies an array of numbers. |
| divide | Divides numbers sequentially. Handles division by zero. |
| set_precision | Configures decimal precision for all subsequent calculations. |
{
"mcpServers": {
"Calculator": {
"command": "/path/to/calculator-mcp/src/index.ts"
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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