Fedlex Connector

Search Swiss federal legislation: laws, articles, amendments via the Fedlex SPARQL endpoint.

Should I use this

Quality & Safety

A
Description quality
90%
Schema completeness
100%
Naming quality
100%
Poisoning risk
80%
Permission match
100%
Protocol compliance
100%

Findings (2)

  • HIGHTool poisoning patterns detected
  • LOWTool description contains negative instruction about its own usein get_article

Based on automated analysis of tool definitions and protocol compliance.

Context Cost

~682Tokens (tool definitions)
~1.2 KBTypical response size
Moderate attention impact (0.53% of 128k context)

This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.

Install

One-Click Install

Add this to your `claude_desktop_config.json` file:

{
  "mcpServers": {
    "fedlex-connector": {
      "url": "https://mcp.fedlex-connector.ch/"
    }
  }
}

Remote endpoints

https://mcp.fedlex-connector.ch/streamable-http

What it can do

Tool inventory

Tools (4)

🟒 Read-only🟑 WriteπŸ”΄ Deleteβšͺ Unknown
🟒search_by_title(query, language)

Search Swiss federal legislation titles in the Classified Compilation (RS/SR) on Fedlex. Use to find the RS number of a law when you know its name but not its number. Searches titles only, not article content. Returns only acts currently in force.

Input Schema

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Keywords to match against act titles (e.g. 'code civil', 'protection des donnΓ©es')"
    },
    "language": {
      "type": "string",
      "enum": [
        "fr",
        "de",
        "it"
      ],
      "description": "Language for results (default: de)"
    }
  },
  "required": [
    "query"
  ]
}
🟒get_article(rs_number, article, language, date)

Retrieve a single article when you already know the EXACT article number (e.g. from a cross-reference). Do NOT call this tool repeatedly to search for provisions β€” use get_law_text instead to fetch the full act or a section and locate relevant articles in the text.

Input Schema

{
  "type": "object",
  "properties": {
    "rs_number": {
      "type": "string",
      "description": "RS/SR number (e.g. '210' for CC, '220' for CO, '311.0' for CP)"
    },
    "article": {
      "type": "string",
      "description": "Article number (e.g. '3', '28a', '41')"
    },
    "language": {
      "type": "string",
      "enum": [
        "fr",
        "de",
        "it"
      ],
      "description": "Language (default: de)"
    },
    "date": {
      "type": "string",
      "description": "Consolidation date in YYYY-MM-DD format. Defaults to the latest available version."
    }
  },
  "required": [
    "rs_number",
    "article"
  ]
}
🟒get_law_text(rs_number, section, language, page)

Retrieve the official consolidated text of a Swiss federal act (or a specific title/chapter) directly from Fedlex (fedlex.admin.ch). This is the PRIMARY tool for answering Swiss law questions β€” always start here. Fetch the full act or a specific section, then locate relevant provisions in the returned text. Prefer this over get_article unless you already know the exact article number.

Input Schema

{
  "type": "object",
  "properties": {
    "rs_number": {
      "type": "string",
      "description": "RS/SR number (e.g. '210' for CC, '220' for CO)"
    },
    "section": {
      "type": "string",
      "description": "Limit to a specific title, chapter, or part (e.g. 'Titre huitième', 'Zweiter Teil'). If omitted, returns the full act."
    },
    "language": {
      "type": "string",
      "enum": [
        "fr",
        "de",
        "it"
      ],
      "description": "Language (default: de)"
    },
    "page": {
      "type": "number",
      "description": "Page number for paginated results (default: 1). Large acts are split across multiple pages."
    }
  },
  "required": [
    "rs_number"
  ]
}
🟒list_amendments(rs_number, since, language)

List consolidation version dates for a Swiss federal act. Returns the dates each consolidated version took effect.

Input Schema

{
  "type": "object",
  "properties": {
    "rs_number": {
      "type": "string",
      "description": "RS/SR number"
    },
    "since": {
      "type": "string",
      "description": "Start date in YYYY-MM-DD format (default: 1 year ago)"
    },
    "language": {
      "type": "string",
      "enum": [
        "fr",
        "de",
        "it"
      ],
      "description": "Language for amendment titles (default: de)"
    }
  },
  "required": [
    "rs_number"
  ]
}

Recommended Prompts

fetch_info
Fetch [information type] using Fedlex Connector
Expected tools: get_article
search_research
Search for information about [topic] using Fedlex Connector
Expected tools: search_by_title
find_specific
Find [specific item] using Fedlex Connector
Expected tools: search_by_title
list_items
List all [items] available in Fedlex Connector
Expected tools: list_amendments
retrieve_data
Get details about [item] from Fedlex Connector
Expected tools: get_article

Community

Rate this Server

Evidence

Recent observations

verifiedversion not recorded4 tools
verifiedversion not recorded4 tools