Weights & Biases MCP Server

The official implementation of the W&B Models and Weave MCP server.

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What is the Weights & Biases MCP Server?

The official implementation of the W&B Models and Weave MCP server.

What the server does

Query and analyze your Weights & Biases data using natural language through the Model Context Protocol.

More MCP options

Compare MCP servers by category, or browse hosted MCP servers if you prefer an endpoint over a local process.

Maintainer setup documentation.

Configuration

VariableDescriptionRequired
WANDB_API_KEYCredential the server authenticates with.Yes
WANDB_BASE_URLEndpoint or connection string the server talks to.Yes

Example prompts to try

  • “Use Weights & Biases to Cursor.”
  • “Use Weights & Biases to VSCode.”
  • “Use Weights & Biases to Codex.”

Frequently asked questions

Get your API key from [wandb.ai/authorize](https://wandb.ai/authorize) and use the hosted server at `https://mcp.withwandb.com` with one-click installation in Cursor or a one-command setup in Claude Code, OpenAI Codex, or Gemini CLI.