The official implementation of the W&B Models and Weave MCP server.
{
"mcpServers": {
"wandb-mcp-server": {
"command": "<see-readme>",
"args": []
}
}
}No install config available. Check the server's README for setup instructions.
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The official implementation of the W&B Models and Weave MCP server.
Is it safe?
No package registry to scan.
No authentication — any process on your machine can connect.
MIT. View license →
Is it maintained?
Last commit 1 days ago. 48 stars.
Will it work with my client?
Transport: stdio. Works with Claude Desktop, Cursor, Claude Code, and most MCP clients.
No automated test available for this server. Check the GitHub README for setup instructions.
No known vulnerabilities.
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Privacy-first. MCP is the protocol for tool access. We're the virtualization layer for context.
Pre-build reality check. Scans GitHub, HN, npm, PyPI, Product Hunt — returns 0-100 signal.
Monitor browser logs directly from Cursor and other MCP compatible IDEs.
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Query and analyze your Weights & Biases data using natural language through the Model Context Protocol.
| Analyze Experiments | Debug Traces | Create Reports | Get Help | |:---|:---|:---|:---| | Show me the top 5 runs by eval/accuracy in wandb-smle/hiring-agent-demo-public? | How did the latency of my hiring agent predict traces evolve over the last months? | Generate a wandb report comparing the decisions made by the hiring agent last month | How do I create a leaderboard in Weave - ask SupportBot? |
"Go through the last 100 traces of my last training run in grpo-cuda/axolotl-grpo and tell me why rollout traces of my RL experiment were bad sometimes?"
| Tool | Description | Example Query |
|------|-------------|---------------|
| infer_trace_schema_tool | Discover field names, types, and sample values | "What fields are in my traces?" |
| query_weave_traces_tool | Analyze LLM traces with detail_level control | "Show failed traces with full data" |
| count_weave_traces_tool | Count traces and get storage metrics | "How many traces failed?" |
| query_wandb_tool | Query W&B runs, metrics, and experiments | "Show me runs with loss < 0.1" |
| get_run_history_tool | Sampled time-series metric data | "Show loss curve for run abc123" |
| create_wandb_report_tool | Create reports with markdown and charts | "Create a report with loss plots" |
| search_wandb_docs_tool | Search official W&B documentation | "How do I create a Weave scorer?" |
| query_wandb_entity_projects | List projects for an entity | "What projects exist?" |
| query_wandb_support_bot | ~~Get help from W&B support bot~~ (deprecated) | Use search_wandb_docs_tool instead |
Schema-first workflow: Call infer_trace_schema_tool first to discover fields, then query_weave_traces_tool with precise columns and detail_level:
"schema" -- structural fields only (fast browsing)"summary"