Best data & notebooks MCP server for Claude Code, tested

Dated results

• Jupyter MCP passed in Claude Code on 2026-10-21 (Claude Code 2.1.296, jupyter_mcp_server 2.2.4, connected in 7.7s). Full result
• MCP Run Python (Pydantic) passed in Claude Code on 2026-10-15 (Claude Code 2.1.296, server reported v0.0.13, connect time not recorded). Full result
• MCP Python Interpreter failed in Claude Code on 2026-10-15 (Claude Code 2.1.296, package version not recorded, connect time not recorded). Full result

Why Jupyter MCP is the candidate

Jupyter MCP passed every step in Claude Code. It is the group’s site-wide candidate (judged 2026-10-21): Ran print(6*7) in a Jupyter kernel and returned 42 in both Claude Code and Cursor (3 calls in total). It needs a running Jupyter server with a token, and it failed in ChatGPT (Codex). MCP Run Python (Pydantic) also passed both clients with 2 calls, but its repo is archived, so it can't be a pick under our rule. No runner-up: MCP Python Interpreter failed to start in both clients on Oct 15. Confirmed Oct 21, 2026: a second run in Claude Code and Cursor passed again (jupyter-mcp-server 2.2.4).

Provisional: based on one dated run per app (no repeat runs yet), so treat it as a candidate, not a final pick. How we test.

What failed or is partial in Claude Code

• MCP Python Interpreter: failed on 2026-10-15. Recorded reason: no successful call to this server's tools; no tool result containing ['42']

Install in Claude Code

The exact snippet we tested is on the Jupyter MCP page (pick the Claude Code tab). Not connecting? Claude Code MCP troubleshooting.

Not tested in Claude Code yet

dbt MCP Server, Tableau MCP, Google Analytics MCP, MATLAB MCP Server (MathWorks), Alpaca MCP Server, AntV Chart MCP, OMOPHub, TradingView MCP, Google Ads + Meta Ads MCP, HyperGSC, Ecommerce Data API, Lava MCP, SoldFetch. Listed from their source; no result in Claude Code yet.

Questions

What is the best data & notebooks MCP server for Claude Code?

In ToolPassed's hands-on tests in Claude Code, Jupyter MCP is our provisional candidate for data & notebooks: it passed install, connect, tools and an agent task on 2026-10-21. We ran 3 data & notebooks MCP servers in Claude Code; 2 passed every step; not a pass: MCP Python Interpreter (failed).

Does Jupyter MCP work with Claude Code?

Jupyter MCP passed in Claude Code on 2026-10-21 (Claude Code 2.1.296, jupyter_mcp_server 2.2.4, connected in 7.7s).

Does MCP Python Interpreter work with Claude Code?

No, not in our test: MCP Python Interpreter failed in Claude Code on 2026-10-15 (Claude Code 2.1.296, package version not recorded, connect time not recorded). Recorded reason: no successful call to this server's tools; no tool result containing ['42']