Zero-dependency scientific calculator MCP server with strict validation, worker isolation, and 43 tools across 8 categories
Zero-dependency scientific calculator MCP server with strict validation, worker isolation, and 43 tools across 8 categories
A powerful scientific calculator for your AI assistant, built as a Model Context Protocol (MCP) server. Cruncher allows compatible AI clients (like Claude Desktop) to perform complex mathematical calculations, handle memory, perform statistical analysis, and access scientific constants with a simple, secure, and standardized interface.
The Model Context Protocol (MCP) is an open standard that allows AI applications to securely connect with external data sources and tools. Think of it as a universal API for AI. By implementing Cruncher as an MCP server, any AI that understands MCP can instantly gain powerful, built-in calculator capabilities without custom integrations.
evaluate_expression — Evaluates a plain text math expression (e.g. (5 + 3) * 10 / 2).add — Adds two numbers (a + b).subtract — Subtracts the second number from the first (a - b).multiply — Multiplies two numbers (a * b).divide — Divides the first number by the second (a / b).modulo — Calculates the remainder (a mod b).power — Calculates a raised to the power of b (a^b).sqrt — Calculates the square root of a value.factorial — Calculates the factorial of a non-negative integer (n!).convert_unit — Convert between common units. 8 categories, 80+ units.convert_base — Converts between bases 2, 8, 10, 16.sine — Calculates the sine of an angle.cosine — Calculates the cosine of an angle.Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.
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 |
|---|---|
| Tier | Tools |
{
"mcpServers": {
"cruncher": {
"command": "npx",
"args": [
"-y",
"@slbdn/cruncher-mcp"
]
}
}
}From the project documentation. Replace placeholders and example paths before connecting.
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