Switzerland Crop Nutrients MCP

Swiss crop nutrient recommendations via the Model Context Protocol. Query GRUD (Agroscope) data, Suisse-Bilanz, soil types, NPK planning, and commodity prices — all from your AI assistant.

Part of Ansvar Open Agriculture.

Why This Exists

Swiss farmers and agronomists need fast access to GRUD nutrient norms, Suisse-Bilanz methodology, and current commodity prices when planning fertilisation and crop rotation. This data is spread across PDFs, federal websites, and industry publications. This MCP server puts it all behind a single tool interface so AI assistants can answer nutrient planning questions with cited, up-to-date Swiss data instead of guessing from training data.

Quick Start

Claude Desktop

Add to your claude_desktop_config.json:

{
  "mcpServers": {
    "ch-crop-nutrients": {
      "command": "npx",
      "args": ["-y", "@ansvar/ch-crop-nutrients-mcp"]
    }
  }
}

Claude Code

claude mcp add ch-crop-nutrients -- npx -y @ansvar/ch-crop-nutrients-mcp

Streamable HTTP (remote)

https://mcp.ansvar.eu/ch-crop-nutrients/mcp

No authentication required.

Docker (self-hosted)

docker run -p 3000:3000 ghcr.io/ansvar-systems/ch-crop-nutrients-mcp:latest

Tools

| Tool | Description | |------|-------------| | about | Get server metadata: name, version, coverage, data sources, and links. | | list_sources | List all data sources with authority, URL, license, and freshness info. | | check_data_freshness | Check when data was last ingested, staleness status, and how to trigger a refresh. | | search_crop_requirements | Search crop nutrient requirements, soil data, and recommendations via full-text search. | | get_nutrient_plan | Get NPK+Mg fertiliser recommendation for a specific crop and soil type (GRUD-based). | | get_soil_classification | Get soil group, characteristics, pH class, and drainage for a Swiss soil type. | | list_crops | List all crops in the database, optionally filtered by crop group. | | get_crop_details | Get full profile for a crop: GRUD nutrient norms, typical yields, growth stages. | | get_commodity_price | Get latest Swiss commodity price for a crop. Warns if data is stale (>14 days). | | calculate_margin | Estimate gross margin for a crop using current or override commodity price. | | get_manure_values | Get manure nutrient content (N, P2O5, K2O) per GVE by animal category and housing system. |

See TOOLS.md for full parameter documentation and examples.

Data Sources

• GRUD 2017 (Agroscope) — NPK+Mg norms for all Swiss crops by soil type and altitude zone
• Suisse-Bilanz Wegleitung (BLW) — Farm-level nutrient balance methodology, correction factors, tolerance ranges
• SBV Produzentenpreise / BLW Marktbeobachtung — Swiss agricultural commodity prices at producer level
• swiss granum Richtpreise — Cereal and oilseed reference prices
• swisspatat Richtpreise — Potato reference prices

See COVERAGE.md for data counts and limitations.

License

Apache-2.0. See LICENSE.