How do I install Weights & Biases MCP server?

Open your MCP client settings, add the MCP server URL https://mcp.withwandb.com/mcp, and restart your client.

Is Weights & Biases MCP server official?

Yes, this is the official MCP server provided by Weights & Biases at wandb.ai.

Do I need an API key for Weights & Biases MCP?

You may need to obtain an API key from https://wandb.ai and configure it in your MCP client. Check the documentation for specific requirements.

Verified OfficialVendor MaintainedHosted on wandb.ai

Weights & Biases Official MCP Server

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W&B MCP Server: query and analyze W&B runs, metrics, experiments, and Weave LLM traces in natural language. Tools: query_wandb_tool, query_weave_traces_tool, count_weave_traces_tool, create_wandb_report_tool, query_wandb_entity_projects, query_wandb_support_bot. Hosted at mcp.withwandb.com; auth via WANDB API key (wandb.ai/authorize). Supports Cursor, Claude Code, VS Code, OpenAI, Gemini, Mistral.

What is Weights & Biases?

Weights & Biases w&b mcp server: query and analyze w&b runs, metrics, experiments, and weave llm traces in natural language. powerful tools: query_wandb_tool, query_weave_traces_tool, count_weave_traces_tool, create_wandb_report_tool, query_wandb_entity_projects, query_wandb_support_bot. hosted at mcp.withwandb.com; auth via wandb api key (wandb.ai/authorize). supports cursor, claude code, vs code, openai, gemini, mistral.. The official Weights & Biases MCP server provides AI agents with standardized access to Weights & Biases's services, enabling powerful automation and integration capabilities that enhance developer productivity and streamline workflows.

This official MCP server is maintained and verified by Weights & Biases, ensuring reliability, security, and up-to-date functionality. Unlike community-maintained servers, this official integration provides long-term support, comprehensive documentation, and direct vendor assistance. The server is hosted on wandb.ai, guaranteeing secure and reliable access to Weights & Biases's services.

Whether you're building AI-powered applications, automating workflows, or enhancing your development tools, the Weights & Biases MCP server provides a standardized way to connect AI agents with Weights & Biases's extensive platform capabilities. This integration enables natural language interactions with Weights & Biases, making it easier than ever to leverage Weights & Biases's features through AI assistants like Claude, ChatGPT, and Cursor.

Installation Instructions

Add Weights & Biases to your MCP-compatible client

MCP Server URL

https://mcp.withwandb.com/mcp

Select MCP Client

Cursor Instructions

Go to Settings → Cursor Settings

Click "Add new global MCP Server"

Paste the MCP configuration into mcp.json and restart

Or manually add to your mcp.json:

{
  "mcpServers": {
    "weights-&-biases": {
      "url": "https://mcp.withwandb.com/mcp"
    }
  }
}

Weights & Biases MCP Server Capabilities

The official Weights & Biases MCP server enables AI agents to:

Query and analyze user behavior and product metrics
Generate reports and insights from analytics data
Track events and user interactions
Create custom dashboards and visualizations
Automate data analysis and reporting workflows
Access Weights & Biases's REST APIs and endpoints programmatically

These capabilities make it easy for AI agents to work with Weights & Biases as part of a larger automation strategy, enabling seamless integration between AI assistants and your existing tools.

Common Use Cases

Automated Workflow Management

AI agents can use the Weights & Biases MCP server to automate repetitive tasks and manage workflows within Weights & Biases's platform.

Data Retrieval and Analysis

The MCP server allows AI agents to query and retrieve data from Weights & Biases, enabling intelligent data analysis and insights.

Integration with Development Tools

Developers can integrate Weights & Biases capabilities directly into their AI coding assistants for seamless workflows.

Frequently Asked Questions

How do I get a Weights & Biases API key?

Visit https://wandb.ai, create an account, and generate an API key from your dashboard. Most tools offer a free tier to get started, making it easy to begin using the Weights & Biases MCP server.

Is this the official Weights & Biases MCP server?

Yes, this MCP server is officially provided and maintained by Weights & Biases. The endpoint https://mcp.withwandb.com/mcp is hosted on their official domain wandb.ai, ensuring reliability and security.

What permissions does Weights & Biases MCP need?

The Weights & Biases MCP server requires appropriate API credentials and permissions based on the operations you want to perform. Check the documentation for specific permission requirements.

Can I use Weights & Biases MCP with multiple clients?

Yes, you can configure the same MCP server across Cursor, Claude Desktop, Cline, and other MCP-compatible clients simultaneously. Each client maintains its own configuration.

Is Weights & Biases MCP server free?

The MCP server itself is free to use, but you may need a Weights & Biases account and API access, which may have its own pricing tiers. Check https://wandb.ai for current pricing information.

What can Weights & Biases MCP server do?

The Weights & Biases MCP server enables AI agents to analyze data and generate insights. W&B MCP Server: query and analyze W&B runs, metrics, experiments, and Weave LLM traces in natural language. Tools: query_wandb_tool, query_weave_traces_tool, count_weave_traces_tool, create_wandb_report_tool, query_wandb_entity_projects, query_wandb_support_bot. Hosted at mcp.withwandb.com; auth via WANDB API key (wandb.ai/authorize). Supports Cursor, Claude Code, VS Code, OpenAI, Gemini, Mistral. This allows you to interact with Weights & Biases's platform through natural language commands in your AI assistant.

Troubleshooting

Connection Failed

Ensure your API key is correctly configured and your network allows outbound connections to wandb.ai. Verify that the MCP endpoint URL https://mcp.withwandb.com/mcp is accessible from your network.

Authentication Error

Verify your API key is valid and has not expired. Generate a new key from https://wandb.ai if needed. Make sure you're using the correct authentication method as specified in the documentation.

Server Not Responding

Check Weights & Biases's status page for any ongoing incidents. Try restarting your MCP client and verify that the server endpoint is correct. If issues persist, consult the official documentation or support channels.

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About Model Context Protocol

The Model Context Protocol (MCP) is an open standard that enables AI models to securely connect to external APIs, tools, and data sources. This official MCP server from Weights & Biases provides standardized access to their services, allowing AI agents to interact with Weights & Biases's platform seamlessly.

To manage all your MCP servers in one place, use Apigene's MCP Gateway, which provides centralized management, security, and governance for all your MCP server connections.

Learn more about MCP in our complete guide or browse our FAQ for common questions.

Server Information

Domain

wandb.ai

Website

https://wandb.ai

MCP Endpoint

https://mcp.withwandb.com/mcp

Quick Actions

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