// MCP TOOL REFERENCE

ARDUINO MCP SERVER TOOLS

21 tools from the Arduino MCP Server MCP Server, categorised by risk level.

View the Arduino MCP Server policy → Token cost: 3,065 tokens →

// ALL 21 ARDUINO MCP SERVER TOOLS

READ 12 tools

Read arduino_cli_doctor Check whether arduino-cli is available and return OS-specific installation instructions if missing. Read detect_hardware Detect connected Arduino-compatible hardware, infer board/FQBN candidates, and generate next compile/upload... Read get_board_details Get detailed board metadata from arduino-cli for a specific FQBN. Read list_board_reference List local board reference entries with pin/spec metadata. Read list_connected_boards List connected boards and serial ports detected by arduino-cli. Read list_serial_ports List serial ports and any detected board metadata using arduino-cli. Works on Windows/macOS/Linux. Read list_supported_boards List supported/installable boards from the local arduino-cli index. Read read_serial_snapshot Capture serial output for a bounded duration from a given port. Read search_board_reference Search local board reference by board name, alias, id, or FQBN. Read serial_expect Wait for a string pattern in a serial session buffer with timeout. Read serial_list_sessions List active serial sessions and current port lock state. Read serial_read Read buffered bytes from an open serial session.

EXECUTE 9 tools

Execute compile_sketch Compile an Arduino sketch with a specific board FQBN. Execute safety_preflight Run electrical preflight checks (voltage/current/pin risks) before upload or serial write operations. Execute ensure_core_installed Ensure the Arduino core required by a board FQBN is installed. Can auto-install via `arduino-cli core insta... Execute install_arduino_cli Attempt to install arduino-cli for the current OS using available package managers, then verify and configu... Execute serial_close_session Close a serial session and release its port lock. Execute serial_open_session Open a stateful serial monitor session with port lock ownership. Execute serial_write Write bytes to an open serial session. Safety preflight is enforced unless explicitly skipped. Execute upload_and_wait_ready Upload a sketch and wait for a serial readiness pattern, handling post-upload reset/re-enumeration windows. Execute upload_sketch Upload a compiled sketch to a connected board/port.

// FAQ

How many tools does the Arduino MCP Server MCP server have? +

The Arduino MCP Server MCP server exposes 21 tools across 2 categories: Read, Execute.

How do I enforce policies on Arduino MCP Server tools? +

Route the Arduino MCP Server server through the PolicyLayer gateway. Define allow, deny, or approval rules per tool in the dashboard; they are enforced on every call before it reaches the server.

What risk categories do Arduino MCP Server tools fall into? +

Arduino MCP Server tools are categorised as Read (12), Execute (9). Each category has a recommended default policy.

Enforce policy on every Arduino MCP Server tool call.

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