Foehn MCP Server

MeteoSwiss Open Data - Python API, CLI & MCP server · tabular as DataFrames/Parquet, gridded as xarray/Zarr. It runs locally over stdio via the published package.

People who work with climate, databricks and meteoswiss and want it reachable from Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-09-14 · ★ 44 · #5 OF 66 MAINTAINED MAPS & LOCATION · VERIFIED 2026-09-18

MIT · Python servers · how we verify → /methodology

01 · Install Foehn

Claude Code

claude mcp add kayhendriksen-foehn -- uvx foehn

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "kayhendriksen-foehn": {
      "command": "uvx",
      "args": [
        "foehn"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

license MIT - declared in the repository

pypi package foehn - check the name against the project README before installing (PyPI has no namespace ownership)

registry namespace io.github.kayhendriksen is GitHub-verified and matches the repo owner

03 · What Foehn can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.4.0 · 2026-08-28

Fixed · time_slice was silently ignored for 10-minute and hourly data (#39) · MeteoSwiss splits the high-frequency historical series into decade chunks · (ogd-smn_ber_t_historical_2000-2009.csv). foehn's filename…

v0.3.4 · 2026-07-27

What's new in 0.3.4 · A performance release: converting climate_scenarios no longer holds the whole · collection in memory, so peak RSS stays flat as MeteoSwiss publishes more files. · Performance · climate_scenarios…

v0.3.3 · 2026-07-21

What's new in 0.3.3 · A correctness release: local forecasts actually return data, and ten dataset · keys that no longer exist upstream are gone. · forecast_local returned nothing. A STAC item in this collection is one…

04 · Who maintains Foehn

foehn is maintained by kayhendriksen. It's the only MCP server we track from this author; the repo dates to Mar 2026.

05 · Facts

repository: github.com/kayhendriksen/foehn
website: https://github.com/kayhendriksen/foehn
category: maps & location - ranked #5 of 66 actively-maintained maps & location servers as of 2026-09-18.
release cadence: 3 releases in the last 90 days (latest 2026-08-28)
registry: io.github.kayhendriksen/foehn (active, first published 2026-04-04 · 17 versions)
packages: pypi:foehn

06 · Foehn FAQ

What is Foehn?

MeteoSwiss Open Data - Python API, CLI & MCP server · tabular as DataFrames/Parquet, gridded as xarray/Zarr. It runs locally over stdio via the published package.

Is Foehn still maintained?

Yes - as of 2026-09-18, its last commit was 2026-09-14 and it shipped 3 releases in the last 90 days. We re-verify nightly.

How do I install Foehn?

Run `uvx foehn`. You can also paste the ready-made client config above.

Does Foehn run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Foehn

Alternatives to Foehn

Maintained maps & location servers if Foehn isn't the fit.

More maps & location MCP servers · Belgium · Swisstopo MCP · Zurich Opendata MCP · Japan Data MCP

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