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116,872 servers. Updated
20 Best Security MCP Servers: compared and ranked, November 2026Ranked from 4,408 matching servers on stars, growth, downloads and maintenance. Updated .

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  • A
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    Not graded
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    maintenance
    MCP server for BusPirate 6 hardware security testing. Exposes UART, SPI, I2C, 1-Wire, power supply, GPIO, and logic analyzer operations as tools.
    2
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Check 22,000+ devices with open firmware or open protocols (OpenWrt, LineageOS, coreboot, Zigbee2MQTT, Tasmota…) before reverse engineering one; claim a device while you work on it and publish your findings when done.
    6
    40
    AGPL 3.0
  • A
    license
    A
    quality
    C
    maintenance
    Enables controlling a Dirtywave M8 over USB by reading its screen as text, pressing buttons, playing notes, and retrieving system information through MCP tools.
    7
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Agentic Hardware-in-the-Loop (Agentic HIL) lets coding agents develop firmware on real embedded boards: flash, reset, read UART and exchange CAN traffic, diagnose and fix. Local, policy-gated MCP tools support OpenOCD, pyOCD and STM32CubeProgrammer, with pytest for CI.
    44
    1,737 PyPI
    24
    Apache 2.0
  • A
    license
    A
    quality
    A
    maintenance
    Enables MCP clients to discover connected gadgets, read their state and events, and route commands to them over versioned device contracts on local USB and TCP transports. Ships with a configurable software simulator so device interactions can be exercised without physical hardware.
    6
    99 PyPI
    Apache 2.0
  • F
    license
    A
    quality
    D
    maintenance
    Enables Claude to create, update, and manage LED patterns on a PixelBlaze controller, including setting brightness and reading device info, through a set of tools that interact with the device's API.
    14
    -
  • A
    license
    A
    quality
    B
    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
    5
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI agents to control an ESP32 board's relays, GPIO pins and analog sensors over a small HTTP API on the local network, with no cloud service in the middle.
    5
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI agents to control and display real-time notifications, telemetry, and custom apps on Ulanzi TC001 and compatible pixel clocks running Awtrix Light, including device management and declarative YAML-based metric polling.
    6
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Allows AI agents to interact with serial devices via RS232/UART, enabling port listing, connection, read/write, control line manipulation, and protocol specification for automated debugging and testing.
    27
    62 PyPI
    26
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    A stateful Bluetooth Low Energy (BLE) MCP server that enables AI agents to scan, connect, read/write characteristics, and subscribe to notifications on BLE devices.
    35
    77 PyPI
    19
    MIT
  • F
    license
    A
    quality
    D
    maintenance
    An MCP server that enables AI agents to read serial output from devices by buffering lines in the background and allowing polling for new output, preventing blocking on long-running serial monitors.
    3
    -
  • A
    license
    A
    quality
    B
    maintenance
    Enables MCP-capable agents to drive a real FPGA toolchain end to end—simulating, asserting, synthesizing, scanning JTAG, capturing on-chip waveforms, and configuring real silicon behind confirmation gates.
    45
    Apache 2.0
  • A
    license
    A
    quality
    B
    maintenance
    Exposes ISO 14229 Unified Diagnostic Services as MCP tools, letting any MCP client run session control, DID reads and writes, DTC queries, routine control, security access and raw requests against a real ECU on a CAN bus or against a built-in simulator. A claim/release access model lets multiple clients safely share one device under test, with hardware-free simulation for offline test-plan development.
    11
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Enables AI agents to debug STM32 firmware on real hardware by driving GDB with OpenOCD/ST-Link/J-Link to flash, set breakpoints, inspect memory, registers and RTOS state, triage HardFaults, and profile. Returns decoded, structured evidence and suggested next actions instead of raw GDB text, with composite tools that collapse multi-step debug loops into single calls.
    86
    2
    MIT
  • A
    license
    A
    quality
    C
    maintenance
    Enables AI assistants to interact directly with EtherCAT fieldbuses for slave topology scanning, ESM state transitions, CoE SDO/PDO access, CiA 402 servo motion control, and bus health diagnostics, with a built-in virtual bus simulator for hardware-free testing.
    12
    MIT
  • A
    license
    A
    quality
    B
    maintenance
    Talk to your Flipper Zero from Claude Code — or any MCP client. Storage, app deployment, screen capture, button automation, JavaScript execution on the device, and honest answers about what is nearby.
    66
    MIT
  • A
    license
    B
    quality
    B
    maintenance
    Let an AI agent drive up to 12 hobby servos on an open-hardware USB-C controller (Pololu Maestro compatible): moves, named poses, sequences, on-board scripts and rail current/voltage readout, with per-channel travel limits and overcurrent guardrails. Includes a --mock emulator, so it runs without the board.
    16
    22 PyPI
    MIT
  • A
    license
    B
    quality
    C
    maintenance
    Enables MCP clients to connect to and interact with Siemens PLCs via python-snap7, supporting read/write operations on data blocks, memory, timers, counters, and CPU management.
    22
    17 PyPI
    MIT
  • A
    license
    B
    quality
    C
    maintenance
    Read-only MCP server that lets AI assistants (Claude Code, Claude Desktop, VS Code, ...) inspect Altium Designer projects — schematics, netlist, BOM and PCB — on Linux, macOS or Windows, without Altium Designer installed.
    13
    3
    AGPL 3.0
  • F
    license
    B
    quality
    B
    maintenance
    Enables LLM agents to operate on KiCad by reading compressed schematics (TOON format), executing atomic tools, and updating context via delta and local area.
    1
    1
    -
  • A
    license
    B
    quality
    C
    maintenance
    Enables AI coding assistants to drive Xilinx Vivado through natural language, letting users open .xpr projects, run synthesis, implementation, and bitstream generation, inspect timing, resource, and clock reports, and launch simulations to read signal values or set breakpoints. It also exposes design hierarchy queries and arbitrary TCL execution, so FPGA design flows can be operated conversationally on Windows.
    40
    MIT
  • A
    license
    C
    quality
    C
    maintenance
    Enables AI agents to build, flash, and debug STM32 projects compiled with Keil MDK-ARM on Windows, returning structured UV4 build diagnostics and evidence-based results. It also provides pyOCD/ST-Link debugging operations such as run control, breakpoints, register/PC reads, and global/static variable inspection.
    29
    MIT