"A calculator for multiplying two numbers" matching MCP servers:

Enables AI agents to create, read, view, and edit Apple Numbers spreadsheets through the Model Context Protocol, leveraging both a parser engine and the Numbers application for formula evaluation and export.

Create, read and edit native Apple Numbers documents on macOS through 38 local MCP tools, using only the native scripting API. Preserves .numbers files and formatting, with formulas, custom templates, guided chart updates, CSV imports and PDF previews; MIT licensed, with no Excel conversion or Accessibility automation.

A deterministic Mastermind-style cipher lock exposed as MCP tools for benchmarking LLM reasoning and tool-use through a legible duel.

Enables users to perform mathematical calculations through natural language by integrating an AI model with calculator tools via the Model Context Protocol.

A deliberately broken calculator MCP server that always returns double the correct answer, designed as a learning exercise for MCP server implementation.

Enables AI apps to compute GPAs from courses and credits, convert between letter and percentage grades, determine the score needed on a final exam, analyze weighted course grades, and plan the GPA required for a target cumulative result.

A simple MCP server that provides basic arithmetic operations like addition, subtraction, multiplication, division, power, and square root.

Enables an LLM client to perform basic arithmetic on two numbers — addition, subtraction, multiplication, and division — plus reverse a supplied text string, through five simple tools exposed over stdio. Inputs and structured text results follow JSON schemas, with invalid operations such as division by zero surfaced as tool errors.

Enables MCP clients and LLMs to perform basic arithmetic operations—addition, subtraction, multiplication, and division—through tool calls, including handling division by zero as an error.

MCP server enabling Claude Code to capture screenshots of Windows applications through WSL2, allowing AI to diagnose UI errors and verify layouts.

Enables AI agents to control a Playwright-driven browser through natural-language instructions, including page interaction and live browser task execution.

Enables AI agents to perform arithmetic operations such as addition, subtraction, multiplication, and division through standardized MCP tools.

Local MCP server for A-share stock trading via Tonghuashun, offering account/position queries, buy/sell/cancel orders with risk controls and forced user confirmation; currently simulated with a reserved interface for real broker channels.

Enables two local LLMs (Qwen and Llama) to communicate via MCP, allowing one model to consult the other for second opinions or additional reasoning.

An MCP server for searching and downloading books from Library Genesis, supporting EPUB, MOBI, PDF, and more through natural language queries.

Provides a local MCP server for AI-powered web crawling on Windows, enabling agents to directly crawl and extract web content without requiring WSL.

Enables coding agents to add a bounded semantic-judgment layer for routing, ranking, extraction, verification, and escalation, returning typed signals and review recommendations.

Enables IPv4 subnet planning and validation, including CIDR prefix calculation, wildcard mask generation, and host position lookup for network engineers.

Enables querying your own Garmin Connect health, sleep, training, and activity data, and creating or scheduling workout plans through natural language conversation.

A validation layer for AI coding assistants that enforces explicit LLM evaluations on plans, code diffs, and tests to ensure safer and higher-quality code.