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20 Best Email MCP Servers: compared and ranked, September 2026Ranked from 2,238 matching servers on stars, growth, downloads and maintenance. Updated .

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"Tool or method for reading selective emails using POP3, IMAP, or Apple Mail access" matching MCP servers:

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    Enables SSH and UART/serial port access for Claude Code to directly control remote devices like Raspberry Pi, embedded systems, and IoT devices. Supports command execution, file transfers via SFTP, and serial communication.
    24
    1
    AGPL 3.0
  • F
    license
    Not graded
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    Enables AI assistants to interact with physical serial port devices across platforms (Windows COM/Linux tty) with support for asynchronous communication, URC pattern recognition, and structured logging.
    1
    -
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    C
    maintenance
    Control a Siglent SPD1305X (or SPD1000X series) programmable DC power supply from Claude Code over Ethernet using SCPI commands, with safety limits and monitoring tools.
    MIT
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    Not graded
    quality
    B
    maintenance
    Exposes a single tool run_bash for executing arbitrary shell commands on a Raspberry Pi or host, with no security restrictions, using LangChain and Streamable HTTP transport.
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    Lets AI assistants read, command, and debug microcontrollers over a serial connection via MCP. Provides tools for serial port discovery, reading serial output, sending commands, and decoding register values.
    7
    2
    MIT
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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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    quality
    D
    maintenance
    Enables LLMs to communicate with hardware devices via serial ports. Provides tools for listing ports, opening/closing connections, reading/writing data, and controlling serial signals.
    8
    MIT
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    quality
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    maintenance
    MCP server for scaffolding, building, and flashing bare-metal STM32C011 firmware using the STM32CubeCLT toolchain. Exposes tools for project scaffold, build, flash, and probe listing.
    4
    -
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    An MCP server that enables AI assistants to control Siglent SDS oscilloscopes over a local network using SCPI commands. It allows users to measure signals, configure channel and acquisition settings, and capture waveforms or screenshots through natural language.
    13
    4 npm
    7
    MIT
  • A
    license
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    quality
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    maintenance
    AI-driven USB oscilloscope control via FastMCP, enabling waveform capture, CSV export, and frequency measurements on PicoScope, Hantek, or a built-in simulator.
    6
    2
    MIT
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    Enables LLMs to control RIGOL oscilloscopes over SCPI via LAN or USB, including configuring channels/timebase/trigger, taking measurements, capturing waveforms and screenshots, decoding serial protocols, running FFT analysis, and controlling the built-in AFG.
    38
    MIT
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    MCP server for controlling CNC machines via Universal GCode Sender. Lets Claude (or any MCP-compatible AI assistant) connect to a CNC machine, inspect G-code, and issue motion commands — all through the UGS Pendant REST API.
    19
    5
    MIT
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    A
    quality
    B
    maintenance
    A local-first, read-only MCP server for vehicle diagnostics that exposes structured OBD-II tools for reading PIDs, DTCs, and ECU snapshots without raw protocol access.
    7
    Apache 2.0
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    license
    A
    quality
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    maintenance
    MCP server that lets AI assistants control Siglent SDG waveform generators over a local network using natural language, supporting signal generation, modulation, sweep, burst, and arbitrary waveforms.
    21
    6 npm
    MIT