UK Parliament Lords Votes MCP Server

Summary

This MCP server provides structured access to UK Parliament Lords Votes data using the Model Context Protocol. It enables AI agents to retrieve divisions and voting records through API-backed tools for reliable data access and analysis. Developers can integrate the MCP server via stdio transport to query divisions, member voting history, and grouped vote summaries. The server exposes tools that map directly to the Lords Votes API for consistent automation and AI agents workflows.

Features

• Fetch a Lords division by division id with standardized responses.
• Search divisions with filters for members, dates, and vote metrics.
• Retrieve member voting records with paging controls.
• Access divisions grouped by party for summary analysis.

Available Tools

get_division_by_id

Get a single Division which has the Id specified.

Parameters:

• divisionId (number, path) – Division id.

search_divisions_total_results

Get total count of Divisions meeting the specified query.

Parameters:

• searchTerm (string, query)
• memberId (number, query)
• includeWhenMemberWasTeller (boolean, query)
• startDate (string, query)
• endDate (string, query)
• divisionNumber (number, query)
• totalVotesCastComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• totalVotesCastValueToCompare (number, query)
• majorityComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• majorityValueToCompare (number, query)

search_divisions

Get a list of Divisions which meet the specified criteria.

Parameters:

• searchTerm (string, query)
• memberId (number, query)
• includeWhenMemberWasTeller (boolean, query)
• startDate (string, query)
• endDate (string, query)
• divisionNumber (number, query)
• totalVotesCastComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• totalVotesCastValueToCompare (number, query)
• majorityComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• majorityValueToCompare (number, query)
• skip (number, query) – Defaults to 0.
• take (number, query) – Defaults to 25.

get_member_voting_records

Get a list of voting records for a Member.

Parameters:

• memberId (number, query) – Required.
• searchTerm (string, query)
• includeWhenMemberWasTeller (boolean, query)
• startDate (string, query)
• endDate (string, query)
• divisionNumber (number, query)
• totalVotesCastComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• totalVotesCastValueToCompare (number, query)
• majorityComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• majorityValueToCompare (number, query)
• skip (number, query) – Defaults to 0.
• take (number, query) – Defaults to 25.

get_divisions_grouped_by_party

Get a list of Divisions which contain grouped by party.

Parameters:

• searchTerm (string, query)
• memberId (number, query)
• includeWhenMemberWasTeller (boolean, query)
• startDate (string, query)
• endDate (string, query)
• divisionNumber (number, query)
• totalVotesCastComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• totalVotesCastValueToCompare (number, query)
• majorityComparator (string, query) – LessThan | LessThanOrEqualTo | EqualTo | GreaterThanOrEqualTo | GreaterThan
• majorityValueToCompare (number, query)

Example Output

{
  "ok": true,
  "endpoint": "/data/Divisions/search",
  "status": 200,
  "data": {
    "items": [
      {
        "divisionId": 456,
        "divisionNumber": 22,
        "title": "Education Bill - Second Reading",
        "date": "2026-03-10"
      }
    ],
    "totalResults": 1
  }
}

Quick Start

Run the MCP server using npx:

npx -y -p @darkhorseone/mcp-server-uk-parliament-lordsvotes mcp-server-uk-parliament-lordsvotes

MCP Configuration

Example mcpServers configuration for stdio transport:

{
  "mcpServers": {
    "uk-parliament-lordsvotes": {
      "command": "npx",
      "args": ["-y", "-p", "@darkhorseone/mcp-server-uk-parliament-lordsvotes", "mcp-server-uk-parliament-lordsvotes"],
      "env": {
        "UPSTREAM_BASE_URL": "https://lordsvotes-api.parliament.uk",
        "UPSTREAM_TIMEOUT_MS": "10000",
        "USER_AGENT": "@darkhorseone/mcp-server-uk-parliament-lordsvotes/1.0.0"
      }
    }
  }
}

Example Usage

• Fetch a division by id and inspect vote details.
• Search divisions for a member in a date range.
• Retrieve total results for a query before paging.
• Get divisions grouped by party for summary analysis.

Use Cases

• AI agents summarizing Lords divisions and voting outcomes.
• Parliamentary research tools tracking member voting history.
• Civic tech platforms monitoring vote trends and turnout.
• Automation pipelines exporting divisions for reporting.

Data Source

UK Parliament Lords Votes API https://lordsvotes-api.parliament.uk/

Installation

Run directly using npx:

npx -y -p @darkhorseone/mcp-server-uk-parliament-lordsvotes mcp-server-uk-parliament-lordsvotes

Or install via pnpm from the repository root:

pnpm install

Run (HTTP proxy server)

Build first, then start:

pnpm --filter @darkhorseone/mcp-server-uk-parliament-lordsvotes run build
pnpm --filter @darkhorseone/mcp-server-uk-parliament-lordsvotes run start:http

Set a custom HTTP port with the UKPLV_HTTP_PORT environment variable (default: 8787):

UKPLV_HTTP_PORT=8787 pnpm --filter @darkhorseone/mcp-server-uk-parliament-lordsvotes run start:http

Published package command:

npx -y -p @darkhorseone/mcp-server-uk-parliament-lordsvotes -- mcp-server-uk-parliament-lordsvotes-http

If your shell cannot resolve the bin ("command not found"), run the HTTP entrypoint directly:

npx -y -p @darkhorseone/mcp-server-uk-parliament-lordsvotes -- node ./dist/http.js

Health check:

curl http://127.0.0.1:8787/healthz

Proxy pattern:

GET /proxy/<upstream-path>?<query>

Example:

curl "http://127.0.0.1:8787/proxy/data/Divisions/search?SearchTerm=education&take=5"

License

MIT License

MCP Metadata

Protocol: Model Context Protocol Transport: stdio Tools: get_division_by_id, search_divisions_total_results, search_divisions, get_member_voting_records, get_divisions_grouped_by_party