Spec Driven Development
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Description from the maker (original English)
Car-buying math and state rules: out-the-door prices, quote checks, leases and trade-ins
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Works in Claude on the web, desktop and mobile:
https://beforethelot.com/mcpRun this in your terminal
claude mcp add --transport http before-the-lot https://beforethelot.com/mcpPaste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json
{
"mcpServers": {
"before-the-lot": {
"url": "https://beforethelot.com/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.
Paste into .vscode/mcp.json in your project
{
"servers": {
"before-the-lot": {
"type": "http",
"url": "https://beforethelot.com/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:
https://beforethelot.com/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.
Tool names and descriptions exactly as the server reported them on Nov 7, 2026. The maker wrote them, not us; we show them as plain text.
what_can_i_affordWorks out a car budget from the monthly payment someone is comfortable with: the most that can be financed, the highest out-the-door price after the trade-in tax credit, that ceiling as dealers quote it (before the credit), and the vehicle price it leaves after the state's tax an
out_the_doorItemizes the out-the-door price of a car from its selling price: rebates, doc fee, add-ons, sales tax with the state's rules and, given a city or county, its local rate (7,000+ places in 23 states), and title and registration. Optionally adds a trade-in (and the tax it saves wher
check_quoteReads a dealer's out-the-door quote, pasted as text (up to 8 KB) or given as line items, and checks it line by line: the out-the-door total, the doc fee against the state's cap (and capped service fees such as Ohio's $50 convenience fee), the tax line against the state's rate, fi
compare_quotesRanks two to ten itemized dealer quotes for the same car by out-the-door total, with each one's gap to the lowest and to the walk line, and (with a state) each doc fee against the state's cap. Use it once several dealers have quoted; to read one quote line by line, use check_quot
rebate_vs_aprCompares a maker's cash rebate taken with the person's own loan against the maker's special APR (with any cash that combines with it): each side's payment, interest and total, the difference, the own-loan rate where the two cost the same, and the sales tax a rebate saves in state
loan_paymentThe monthly payment, total interest and total paid on a car loan from the amount financed, APR and term, with what a term over 60 months adds in interest compared with 60. Use it for a loan on its own; out_the_door works the payment from a car price, and refinance_check compares
lease_checkWorks a lease quote from the MSRP, selling price, residual and money factor (or the lease's APR): the depreciation and rent charges, the monthly payment with the state's lease tax, the money factor as an APR, and the total cost, including any tax charged once at the start (Texas,
refinance_checkCompares a car loan as it stands with a new loan at a quoted rate, by default over the same months left so a lower payment cannot hide a longer loan, with any fees counted: the new payment, the monthly difference and the total interest saved or added.
trade_in_positionSizes up a trade-in from written offers (CarMax, Carvana, dealers) and what's still owed: the best offer still open, which is the floor a dealer's trade number is compared with, the equity or negative equity, and, with a state and vehicle price, the sales tax the trade saves wher
payoff_planA payoff plan for a car loan, for paying it off early with an extra payment each month: the months and total interest at the regular payment, and with an extra amount toward principal each month (optionally for only the first so many months, or skipping some), with the months and
get_methodThe Before the Lot method for buying a car: an overview and its seven stages, from setting the budget at home to signing. Each stage says what to collect, what it produces, which guides, tools and email templates apply, and when it's done. Use it to plan a purchase step by step o
state_rulesA state's car-buying rules: the dealer doc-fee cap or rule, sales tax (state rate, local add-on range, any cap), whether a trade-in lowers the taxed price, how a maker's rebate is taxed, and cancellation rights where on file. Each comes with its source, as-of date and confidence,
dealer_emailDrafts an email to a dealer or lender from one of six Before the Lot templates: request an itemized out-the-door quote, make an offer, share a competing quote, confirm the deal, decline, or give a lender the deal's numbers. Returns a subject and body for the person to review and
offers_pageThe address of a car maker's own page of current offers (rebates, special APRs, lease deals), and of a model's page where one can be built, with whether the maker lists national offers at all and when the address was checked. Use it to point someone to the maker's official offers
desk_scriptA short line a buyer can say at a moment in the dealership's sales or finance office, such as being asked for a monthly payment, a credit check before a price, or a pitch for an add-on, with when it applies and why it works. Use it when someone describes what's happening at the d
plan_linkBuilds a link to the free Before the Lot planner that opens with the numbers given already filled in, so the person can carry on in the web planner with their trade-in, loan, budget and quotes. Use it after working out numbers in the chat. The plan travels in the link itself, so
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 9, 2026
The registry lists no source repo, so we cannot match the publisher (beforethelot.com) to the code
We have not read this repo from GitHub yet
We have not read this repo from GitHub yet
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Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.
It passed 2 of 3 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.
The registry does not list a required key, though some servers ask you to sign in on first use.
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.
The GitHub repo last changed –, and the latest version (1.0.0) reached the registry 11 days ago.
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.
In the same category: Spec Driven Development, Remote Desktop Commander, agentPickup
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
MCP Server that facilitates spec-driven development workflows, not just Vibe Coding.
Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.
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No README found in the repo