Proper Job Building Cost Calculator MCP MCP server

This MCP server allows AI assistants to calculate free building cost estimates for UK and US projects. Users can ask for guide prices for extensions or home additions, compare different scopes or finishes, and get explanations of cost breakdowns and assumptions without needing an account or providing sensitive personal addresses.

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 SR3H Ltd

MCP endpoint (Streamable HTTP)

https://www.proper-job.uk/api/mcp

Vendor documentation

What you can do with it

Calculate a budget for a home extension
Compare costs for different project scopes
Get a guide price for a building project

Tools advertised by the last live check:

get_estimate_requirements
calculate_guide_price
compare_guide_scenarios

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 proper-job-building-cost-calculator-mcp https://www.proper-job.uk/api/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 proper-job-building-cost-calculator-mcp --url https://www.proper-job.uk/api/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable proper-job-building-cost-calculator-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "proper-job-building-cost-calculator-mcp": {
      "url": "https://www.proper-job.uk/api/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": {
    "proper-job-building-cost-calculator-mcp": {
      "type": "streamableHttp",
      "url": "https://www.proper-job.uk/api/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start proper-job-building-cost-calculator-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "proper-job-building-cost-calculator-mcp": {
      "type": "http",
      "url": "https://www.proper-job.uk/api/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 proper-job-building-cost-calculator-mcp https://www.proper-job.uk/api/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": {
    "proper-job-building-cost-calculator-mcp": {
      "url": "https://www.proper-job.uk/api/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": {
    "proper-job-building-cost-calculator-mcp": {
      "serverUrl": "https://www.proper-job.uk/api/mcp"
    }
  }
}

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