Anthropic's Messages API - Box Dev Docs

Connect the Box MCP server with Anthropic’s Messages API. Clone this sample chat bot project to get started quickly. It allows you to have a conversation with an Anthropic model, which has access to tools provided by the Box MCP server.

Prerequisites

A Box enterprise account with the MCP server enabled by an admin. See Set up the MCP server.
An Anthropic API key with access to the Messages API.

Enable Box integration in Box

Admin

Clone the sample chat bot project.
Follow the project README to configure your Box OAuth credentials and Anthropic API key.
Start the application and authenticate with Box when prompted.

The sample project is a React-based chat bot that leverages Box MCP. It demonstrates how to pass the MCP endpoint and authorization token to Anthropic’s Messages API:

response = await client.beta.messages.create(
    model="claude-3-opus-20240229",
    max_tokens=4096,
    messages=conversation_history,
    mcp_servers=[
        {
            "type": "url",
            "url": "https://mcp.box.com",
            "name": "box-remote-mcp",
            "authorization_token": BEARER_TOKEN,
        }
    ],
    betas=["mcp-client-2025-04-04"]
)

Video walkthrough

Watch a video that features a demo project, a React-based chat bot that leverages Box MCP.

Last modified on April 30, 2026