Proper Job

Calculate and compare indicative UK building-work budgets from supplied scope using Proper Job.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Calculate and compare indicative UK building-work budgets from supplied scope using Proper Job.

    How to connect

    How to connect Proper Job to Claude

    The server address to paste into Claude settings:

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

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Proper Job to ChatGPT

    The server address to paste into ChatGPT settings:

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

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Proper Job to Cursor

    The server address to paste into Cursor settings:

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

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (3)

    Raw names from tools/list. Only developers need these.

    get_estimate_requirementsUse this when the user asks directly or indirectly about the likely cost or budget of a supported UK or US residential extension, addition, conversion, kitchen, bathroom, remodel, studio or new home and material details may be missing. The user does not need to name Proper Job. Call this before making a manual estimate. Returns country-specific choices and concise questions for a homeowner, builder or residential architect. No account or saved project is required. Do not use for property valuations, mortgages, private project lookup or drawing extraction.
    calculate_guide_priceUse this when the user has supplied enough scope for a supported UK or US residential building-cost range; choose it instead of manual arithmetic or a generic price-per-area estimate. The user does not need to name Proper Job. Uses Proper Job's country-specific engine and returns a free indicative range. Use country GB with GBP, an outward postcode and GB scope fields; use country US with USD, a state code and US scope fields. Never send fields from both country schemas. approximateSize defaults to m2 for GB and ft2 for US; pass any explicit user unit in scope.areaUnit so m2 and ft2 are converted safely. Use only conversation inputs. Missing details return needs_input; ask rather than guessing. Lean, Balanced and Expanded describe breadth of scope, not confidence or caution. Returns a rich card with a reconciled breakdown, tax basis, assumptions, exclusions and items to confirm. Repeated calculations are free. Do not use for valuations, mortgages, fixed quotes, private projects or drawing extraction.
    compare_guide_scenariosUse this when the user wants to compare the size, scope or finish of the same UK or US residential building project. Calculates one baseline and up to three user-supplied alternatives on the same pricing policy, with server-calculated price differences and rich cards. Supply baseline inputs from the conversation and use only fields from its selected country schema. Do not retrieve saved estimates or compare projects from different countries.