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20 Best Email MCP Servers: compared and ranked, September 2026Ranked from 2,148 matching servers on stars, growth, downloads and maintenance. Updated .

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    An MCP server that enables AI assistants to analyze schematics, inspect PCBs, trace connections, validate designs, and generate embedded code for KiCad projects.
    39
    88
    MIT
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    C
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    An MCP server that lets AI coding agents drive the full STM32 development loop—code generation, build, flash, debug, serial monitoring, and fault diagnosis—end to end via CubeIDE, CubeMX, CubeProgrammer, OpenOCD, and GDB.
    MIT
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    A local stdio MCP server for embedded firmware automation that exposes tools to build, flash, reset devices, and capture serial logs through a device configuration file.
    1
    MIT
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    Enables control of Digilent WaveForms instruments (oscilloscope, AWG, logic analyzer) over USB, supporting devices like Analog Discovery 2/3 and Digital Discovery.
    3
    MIT
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    Enables AI assistants to control an STM32 microcontroller over serial by reading/writing GPIO, setting LED brightness, reading ADC channels, and displaying text on an OLED screen via natural language.
    1
    MIT
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    Enables interaction with Arduino development through arduino-cli, allowing sketch management, code compilation and uploading, library and board operations, serial monitoring, and AI-powered circuit diagram generation using WireViz.
    10
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    MCP server that exposes immutable CAN signal and MISRA reference facts as read-only resources and provides a human-gated defect filing tool with tamper-evident audit logging.
    1
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    MCP server that connects WAGO PLCs to LLM agents via the WDx/WDA REST API, enabling AI assistants to read sensor values, change configuration, trigger firmware updates, or monitor entire PLC fleets without custom code.
    3
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    Enables MCP clients to control a Nordic PPK2 for power profiling: configure source/measurement modes, set voltage, power DUT, measure current/power/energy, and capture logic channels.
    6
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    A headless MCP server that enables AI tools (like Claude Code) to read and analyze serial logs from embedded boards (ESP32, STM32) for firmware debugging, with read-only tools for log retrieval and a built-in web viewer.
    6
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    Enables controlling multiple USBTMC (USB Test and Measurement Class) devices simultaneously using SCPI commands through a unified MCP interface.
    11
    MIT
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    Provides AI coding tools with queryable documentation for the AK (Active Kernel) event-driven MCU framework, including API signatures, guides, and guardrails.
    8
    1
    Apache 2.0
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    Enables control of MHS-5200A series signal generators via serial connection, including frequency, amplitude, waveform, and sweep settings.
    16
    MIT
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    MCP server that gives Claude Code full control over the CrossPad development workflow — build, test, manage app packages, interact with the simulator, search code across repos — all from natural language.
    8
    403
    1
    MIT