modbus-mcpAn MCP server that standardizes and contextualizes industrial Modbus data.

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Reviewed by Daniel Nikulshyn·Updated July 2026

Overview

The modbus-mcp server standardizes and contextualizes industrial Modbus data, enabling seamless integration of AI agents with industrial IoT systems. It supports various Modbus operations and connections over TCP, UDP, or serial. The server is configured via environment variables and supports tools for reading and writing registers and coils. It requires Python 3.10 and uv for dependency management. The modbus-mcp server allows for flexible connections and customizable prompts for analyzing Modbus register values. It's suitable for applications requiring integration of industrial Modbus data with AI agents. The server's functionality is accessible through conversational inputs and structured JSON outputs. Its design allows for straightforward setup and usage.

Key features

Read/write holding registers
Read/write coils
Read input registers
Modbus over TCP, UDP, or serial
Customizable prompts for register analysis

Pricing

Model: Free
Category: MCP Servers
Rating: No reviews yet

Use cases

Industrial IoT Integration

Integrate industrial Modbus data with AI agents for predictive maintenance and anomaly detection

Modbus Data Standardization

Standardize Modbus data from various devices for unified analysis and processing

Pros & Cons

Pros

Enables seamless integration of AI agents with industrial IoT systems
Supports Modbus over TCP, UDP, or serial
Flexible configuration via environment variables
Customizable prompts for analyzing Modbus register values

Cons

Requires Python 3.10 and uv for dependency management
Configuration via environment variables may require technical expertise

Reviews

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Q&A

What read/write operations are available through the server?

modbus-mcp provides tools to read/write holding registers, read/write coils, read input registers, and read multiple holding registers, all accessible via structured JSON outputs.

Asked by Liam O’Connor · Sep 15, 2025

Can I customize the prompts used for analyzing register values?

Yes, the server includes a customizable prompt feature (analyze_register) that lets you define how register values are interpreted and presented to AI agents.

Asked by Esther Adeyemi · Sep 10, 2025

Which Modbus connection types are supported and how are they configured?

It supports Modbus over TCP, UDP, and serial. Configuration is done through environment variables (e.g., MODBUS_TYPE, MODBUS_HOST, MODBUS_PORT for TCP/UDP; MODBUS_SERIAL_PORT, MODBUS_BAUDRATE, etc., for serial) set in a .env file or the shell.

Asked by Nadia Benali · Aug 26, 2025

What are the system requirements and how do I install modbus-mcp?

modbus-mcp requires Python 3.10 and the uv tool for dependency management. Install uv via the provided script, clone the repository, and run `uv sync` to install dependencies.

Asked by Cristina Moreno · Jul 11, 2025