Go SDK

Go SDKs to connect to the MCP Toolbox server.

Overview

MCP Toolbox
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MCP Toolbox SDKs for Go

License: Apache
2.0 Docs Discord Medium Go Report Card Module Version Go Version

This repository contains the Go SDK designed to seamlessly integrate the functionalities of the MCP Toolbox into your Agentic applications. The SDK allow you to load tools defined in Toolbox and use them as standard Go tools within popular orchestration frameworks or your custom code.

This simplifies the process of incorporating external functionalities (like Databases or APIs) managed by Toolbox into your GenAI applications.

Overview

The MCP Toolbox service provides a centralized way to manage and expose tools (like API connectors, database query tools, etc.) for use by GenAI applications.

The Go SDK act as clients for that service. They handle the communication needed to:

  • Fetch tool definitions from your running Toolbox instance.
  • Provide convenient Go structs representing those tools.
  • Invoke the tools (calling the underlying APIs/services configured in Toolbox).
  • Handle authentication and parameter binding as needed.

By using the SDK, you can easily leverage your Toolbox-managed tools directly within your Go applications or AI orchestration frameworks.

Which Package Should I Use?

Choosing the right package depends on how you are building your application:

  • core: This is a framework agnostic way to connect the tools to popular frameworks like Google GenAI, LangChain, etc.

  • tbadk: This package provides a way to connect tools to ADK Go.

  • tbgenkit: This package provides a functionality to convert the Tool fetched using the core package into a Genkit Go compatible tool.

Available Packages

This repository hosts the following Go packages. See the package-specific README for detailed installation and usage instructions:

PackageTarget Use CaseIntegrationPathDetails (README)
coreFramework-agnostic / Custom applicationsUse directly / Customcore/📄 View README
tbadkADK GoUse directlytbadk/📄 View README
tbgenkitGenkit GoAlong with coretbgenkit/📄 View README

Getting Started

To get started using Toolbox tools with an application, follow these general steps:

  1. Set up and Run the Toolbox Service:

    Before using the SDKs, you need the MCP Toolbox server running. Follow the instructions here: Toolbox Getting Started Guide

  2. Install the Appropriate SDK:

    Choose the package based on your needs (see “Which Package Should I Use?” above) Use this command to install the SDK module

    # For the core, framework-agnostic SDK
    go get github.com/googleapis/mcp-toolbox-sdk-go
    
  3. Use the SDK:

    Consult the README for your chosen package (linked in the “Available Packages” section above) for detailed instructions on how to connect the client, load tool definitions, invoke tools, configure authentication/binding, and integrate them into your application or framework.

Github

Last modified February 3, 2026: Apply suggestions from code review (f3196a7102)