What math operations does calc-mcp support?

The server provides 21 tools covering basic arithmetic, randomness, date manipulation, encoding (Base64), and hashing (SHA-256 and others). Consult the tool list in the registry or after installation for the complete set.

How do I install calc-mcp?

Run `npx @coo-quack/calc-mcp@2.0.1` to install. It uses stdio transport, so it communicates with your MCP client via standard input/output.

Are the results deterministic?

Yes. The registry explicitly states the tools are deterministic and accurate, so the same input will always produce the same output (except for random number generation, which is intentionally non-deterministic).

Can I use calc-mcp for cryptographic hashing in production?

The server supports hashing functions like SHA-256, but you should verify the implementation meets your security requirements. For sensitive cryptographic use cases, consider auditing the source or consulting the maintainer.

What encoding formats are supported?

The registry mentions encoding and decoding tools. Base64 is commonly included; check the full tool documentation after installation for other formats like hex or URL encoding.

MCP ServerSTDIOOfficialv2.0.1

Coo Quack Calc MCP Server

Perform math calculations, generate random numbers, manipulate dates, encode/decode data, and compute hashes through 21 deterministic tools. Built for developers who need reliable utility functions in their AI workflows.

io.github.coo-quack/calc-mcp

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Hosted URL

Local install

Transport

STDIO

Auth

No auth required

What the Coo Quack Calc MCP server does

How models use it and what it is built for.

Connect to Coo Quack Calc

Local install — runs as a subprocess.

npx @coo-quack/calc-mcp@2.0.1

Resources

Where to find authoritative docs and source for Coo Quack Calc.

Source repository

Example prompts for Coo Quack Calc

Paste any of these into Agent Studio after connecting Coo Quack Calc.

Calculate the SHA-256 hash of this API key for logging
Generate a random integer between 1 and 100 for testing
Convert this Unix timestamp to a human-readable date
Base64 encode this JSON payload before sending it

Coo Quack Calc MCP server — FAQ

Common questions about connecting and running Coo Quack Calc.

What math operations does calc-mcp support?
The server provides 21 tools covering basic arithmetic, randomness, date manipulation, encoding (Base64), and hashing (SHA-256 and others). Consult the tool list in the registry or after installation for the complete set.
How do I install calc-mcp?
Run `npx @coo-quack/calc-mcp@2.0.1` to install. It uses stdio transport, so it communicates with your MCP client via standard input/output.
Are the results deterministic?
Yes. The registry explicitly states the tools are deterministic and accurate, so the same input will always produce the same output (except for random number generation, which is intentionally non-deterministic).
Can I use calc-mcp for cryptographic hashing in production?
The server supports hashing functions like SHA-256, but you should verify the implementation meets your security requirements. For sensitive cryptographic use cases, consider auditing the source or consulting the maintainer.
What encoding formats are supported?
The registry mentions encoding and decoding tools. Base64 is commonly included; check the full tool documentation after installation for other formats like hex or URL encoding.

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