Koskamo

OpenHelvetia Gateway MCP MCP server

An official MCP gateway operated by Open Helvetia that provides agents with access to Swiss federal law (Fedlex), political data (LINDAS), and the national data catalogue (i14y). It supports two-stage discovery, deterministic tool lists, and verifiable answers with sources, serving as the primary interface for the Open Helvetia infrastructure.

Endpoint and access

No sign-in: your client connects and lists tools immediately, with no account or key.

No sign-inEndpoint checked 2026-10-05Operated by Open Helvetia
MCP endpoint (Streamable HTTP)
https://mcp.openhelvetia.swiss/mcp
Vendor documentation

What you can do with it

  • Query Swiss federal law via Fedlex
  • Access political data cubes from LINDAS
  • Retrieve national data catalogue entries
  • Verify answer sources and dates
Tools advertised by the last live check:
  • directory.get
  • facts.badge
  • facts.latest
  • fedlex.check_in_force
  • fedlex.check_quote
  • fedlex.cite
  • fedlex.compare_versions
  • fedlex.detect_foreign_content
  • fedlex.explore_node
  • fedlex.extract_tables
  • fedlex.find_related_topic
  • fedlex.find_treaties
  • fedlex.get_article_history
  • fedlex.get_citations
  • fedlex.get_consultation_documents
  • fedlex.get_consultations
  • fedlex.get_drafts
  • fedlex.get_fga_documents
  • fedlex.get_law_metadata
  • fedlex.get_memorial
  • fedlex.get_modifications
  • fedlex.get_oc_act
  • fedlex.get_references
  • fedlex.get_structure
  • fedlex.get_subdivisions
  • fedlex.get_taxonomy
  • fedlex.get_treaty_info
  • fedlex.list_annexes
  • fedlex.list_expressions
  • fedlex.list_versions
  • fedlex.parse_reference
  • fedlex.read_article
  • fedlex.read_document
  • fedlex.resolve_consolidation_at
  • fedlex.resolve_sr
  • fedlex.resolve_vocabulary_label
  • fedlex.search_law
  • fedlex.search_text
  • i14y.api_status
  • i14y.get_concept
  • i14y.get_data_service
  • i14y.get_dataset
  • i14y.get_dataset_distributions
  • i14y.list_catalogs
  • i14y.list_concepts
  • i14y.list_data_services
  • i14y.list_datasets
  • i14y.list_public_services
  • i14y.list_publishers
  • i14y.search_catalog
  • i14y.search_codelist_entries
  • lindas.describe
  • lindas.describe_cube
  • lindas.dimension_values
  • lindas.find_cube
  • lindas.list_cubes
  • lindas.list_versions
  • lindas.observations
  • lindas.resolve_label
  • manifest.get
  • meta.capabilities
  • meta.schemas
  • meta.tools
  • publish.info
  • standard.artifacts

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers a Streamable HTTP server. Use --scope project to write .mcp.json for the repo.
Claude Code configuration
claude mcp add --transport http openhelvetia-gateway-mcp https://mcp.openhelvetia.swiss/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).
Codex configuration
codex mcp add openhelvetia-gateway-mcp --url https://mcp.openhelvetia.swiss/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable openhelvetia-gateway-mcp in your MCP settings.
Cursor configuration
{
  "mcpServers": {
    "openhelvetia-gateway-mcp": {
      "url": "https://mcp.openhelvetia.swiss/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure). The type must be streamableHttp for a remote HTTP server.
Cline configuration
{
  "mcpServers": {
    "openhelvetia-gateway-mcp": {
      "type": "streamableHttp",
      "url": "https://mcp.openhelvetia.swiss/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start openhelvetia-gateway-mcp and inspect its tools.
VS Code configuration
{
  "servers": {
    "openhelvetia-gateway-mcp": {
      "type": "http",
      "url": "https://mcp.openhelvetia.swiss/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.
Gemini CLI configuration
gemini mcp add --transport http openhelvetia-gateway-mcp https://mcp.openhelvetia.swiss/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.
Claude Desktop configuration
{
  "mcpServers": {
    "openhelvetia-gateway-mcp": {
      "url": "https://mcp.openhelvetia.swiss/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.
Windsurf configuration
{
  "mcpServers": {
    "openhelvetia-gateway-mcp": {
      "serverUrl": "https://mcp.openhelvetia.swiss/mcp"
    }
  }
}

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