Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Runs on your computer
Proper Job Building Cost Calculator
Overview
Description from the maker (original English)
Free UK building-cost estimates, US beta estimates and scenario comparisons. No account needed.
PopNx MCP’s three pillars
These three are never merged into one score: opinions, measurements and popularity are different things.
- User voiceiNo reviews yetReviews open together with accounts in a later step
- Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
- UsageiVery new★ –
What you can do with it
We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.
- Connection: Runs in the cloud
- Transport: Streamable HTTP
- Category: Other
Install
Pick the AI app you use, then copy the settings.
Before you install
- Basic checks: 1 of 1 passed
- Runs on the maker’s server: what you ask it goes through their server.
- The registry lists no key to fill in.
You need
- Runs in the cloudNothing to install; it connects over the internet
Which app do you use?
Pick your app above. We remember it, so next time the button says “Install in …”.
Works in Claude on the web, desktop and mobile:
- Open Settings → Connectors
- Press Add custom connector
- Paste the address below and press Add
- If it asks you to sign in, sign in with the maker
https://www.proper-job.uk/api/mcpRun this in your terminal
claude mcp add --transport http proper-job https://www.proper-job.uk/api/mcpOr copy the settings yourself
Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"proper-job": {
"url": "https://www.proper-job.uk/api/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
Or copy the settings yourself
Paste into .vscode/mcp.json in your project
{
"servers": {
"proper-job": {
"type": "http",
"url": "https://www.proper-job.uk/api/mcp"
}
}
}Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.
ChatGPT connects only to servers on the internet:
- Open ChatGPT on the web → Settings → Connectors (Apps)
- Press Create or Add (some plans need Developer mode under Advanced first)
- Paste the address below, give it a name and save
- If it asks you to sign in, sign in with the maker
https://www.proper-job.uk/api/mcpMenu names can differ slightly by plan and over time.
Your choice stays on this device in a cookie; no account needed.
These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.
What it can do
We have not read this server’s tool list yet; we check endpoints in rotation.
Basic checksi
We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 8, 2026
- ✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account falsalama, which owns the repo
- … Not checked yet
Still maintained
We have not read this repo from GitHub yet
- … Not checked yet
Has a licence
We have not read this repo from GitHub yet
- … Not checked yet
Endpoint responds
Not checked yet; we check endpoints in rotation
- … Not checked yet
Sign-in with OAuth
Not checked yet; we check endpoints in rotation
- … Not checked yet
No hidden instructions in tool descriptions
Not checked yet; we read the tool list when we check the endpoint
Compared with others in Otheri
- More stars than 0% of the other 18595 servers in this category
- Published to the registry more recently than 54% of the other 18595 servers in this category
- Basic checks equal to or better than 100% of the other 18595 servers in this category
Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
Common questions
Is Proper Job Building Cost Calculator safe?
It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.
What keys or codes does it need?
The registry does not list a required key, though some servers ask you to sign in on first use.
Does it run on my computer or in the cloud?
It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.
Is it still maintained?
The GitHub repo last changed –, and the latest version (1.0.2) reached the registry 39 days ago.
Which apps can use it?
Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.
What can I use instead?
In the same category: Spec Driven Development, Remote Desktop Commander, Aiterm MCP
Alternatives
Servers in the same category from other makers, sorted by stars.
Reading a card:↓ Downloads per weeki★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi
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Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
Runs in the cloud✓ desktopcommander.app
Aiterm MCP
Persistent terminals and one launcher for Claude, Codex, Grok, Cursor, and Antigravity harnesses.
Runs on your computer
README from the maker
Open the README
Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.
Proper Job for Claude
Calculate and compare indicative UK and US beta building-work budgets with Proper Job from Claude Code or Cowork. The plugin connects Claude to Proper Job’s hosted, deterministic pricing service and adds a focused estimating workflow. It contains no pricing engine, internal rates or customer database.
Proper Job is owned and operated by SR3H Ltd. See the calculator documentation, privacy policy, terms and support.
What Claude can do
- Ask for the material scope details needed for a supported UK or US beta estimate.
- Calculate a new indicative GBP or USD guide-price range using
calculate_guide_price. - Compare up to three supplied size, finish or scope alternatives using
compare_guide_scenarios. - Explain country-specific tax treatment, assumptions, exclusions and items still to confirm.
- Render the optional Proper Job result card where the host supports MCP Apps.
No Proper Job account, subscription, API key or bearer token is required. Ordinary calculations have no Proper Job payment gate or free-use allowance. Short-window abuse controls and the host’s own limits remain. Proper Job still pays its normal hosting and database costs.
Data and security boundary
The plugin connects only to https://www.proper-job.uk/api/mcp over Streamable HTTP. It sends typed scope supplied in the conversation. For the UK, use an outward postcode such as BS3. For the US, use a two-letter state and optional five-digit ZIP. Do not send an exact address.
There are no tools for customer accounts, jobs, saved estimates, exact addresses, drawings, payments, email, SQL, file access, source code or full rate-table exports. Calculations are not saved as projects. The package has no executable scripts, hooks, dependency installation, local-file access or telemetry. Public requests may produce standard operational logs and short-lived abuse counters as described in Proper Job’s privacy policy.
Example
Ask Claude:
Use Proper Job to calculate a guide price for a 30 m² rear extension in BS3, good domestic finish, balanced scope, semi-detached house, no kitchen work and no bathroom work. Then compare 40 m² with everything else unchanged.
A Guide Price is an early indicative budget, not a fixed contractor quotation. UK results state VAT treatment; US beta results use square feet and exclude sales and use taxes.
Card and scope support
Release 1.0.2 restores Claude sandbox compatibility in the hosted MCP Apps card and keeps the older resource aliases available. The same account-free endpoint continues to return structured and textual results to hosts without MCP Apps support.
An area range needs a chosen size or explicitly agreed size scenarios. Do not silently use its midpoint or assume structural steel is required. Patios, sliding-door specifications and new underfloor heating are not separately priced by the public calculator. Only named returned inclusions are confirmed: a finish band or allowance total does not establish coverage of those extras.
Publication status
This public repository is the reviewable source for a Claude community-plugin-directory submission. A submitted or installed plugin is separate from Anthropic’s verified Connectors Directory. Directory acceptance and recommendation are not guaranteed.
License
The connector configuration and documentation are MIT licensed. The Proper Job logo and brand marks are excluded and remain their owner’s property; the included logo may be displayed to identify this integration. No rights to the hosted service, pricing data or source code are granted.