Elections Canada MCP Server

This is a Model Context Protocol (MCP) server that provides access to Canadian federal election data. It currently supports results from the 2021 and 2025 elections. Future updates will include past elections, census demographics, and ThreeFortyThree real-time projections.

Brought to you by ThreeFortyThree, this server powers ThreeFortyThree Chat and is available for use with MCP clients such as Claude Desktop.

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🛠 Setup

Installation (via PyPI)

uv pip install elections-canada-mcp-server

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Usage with Claude Desktop

1. Make sure the server is installed:

uv pip install elections-canada-mcp-server

2. Open your claude_desktop_config.json and add the following block:

uv

{
  "mcpServers": {
    "elections_canada_data_and_predictions": {
      "command": "{PATH_TO_UVX}",  // Replace with output of: which uvx
      "args": ["elections-canada-mcp"]
    }
  }
}

3. Restart Claude Desktop.

4. Now you can ask Claude questions such as:

   • "What were the 2021 election results in Toronto Centre?"
   • "Which ridings were closest for the NDP?"
   • "Show me the highest-margin wins for the Conservatives in 2021."

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Local Development

To test the server using MCP Inspector:

1. Clone this repository:

   git clone https://github.com/ThreeFortyThree-Canada/elections-canada-mcp-server.git
   cd elections-canada-mcp-server
   

2. Install MCP CLI:

   uv pip install mcp
   

3. Test the server:

   mcp dev elections_canada_mcp/server.py
   

This opens a web UI to test the server locally.

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🧰 Tools

Tool	Description	Input	Returns
search_ridings	Search ridings by name (accent-insensitive)	search_term: str	List of matching ridings
get_party_votes	Get vote share in a riding (optionally by party)	riding_code: str, party_code: str (optional)	Votes and percentage
get_winning_party	Get the winning party in a riding	riding_code: str	Winning party
summarize_province_results	Province-wide summary of votes/seats	province_name_or_code: str	Party results
summarize_national_results	Canada-wide election summary	—	National party results
find_closest_ridings	Find most competitive ridings	num_results: int, party: str (optional)	Closest margins
best_and_worst_results	Best/worst ridings for a party	party: str, num_entries: int	4-category performance summary

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📚 Resources

Resource	URI
All ridings	elections-canada://ridings
Single riding	elections-canada://riding/{riding_code}
Province	elections-canada://province/{province_code}

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📌 Province Codes

AB, BC, MB, NB, NL, NS, NT, NU, ON, PE, QC, SK, YT

📌 Party Codes

LPC, CPC, NDP, BQ, GPC, PPC

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📄 License

This project is licensed under the MIT License.

© ThreeFortyThree Canada – threefortythree.ca