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Before the Lot

com.beforethelot/before-the-lot · v1.0.0

Car-buying math and state rules: out-the-door prices, quote checks, leases and trade-ins

Connect Remote server

Terminal
claude mcp add --transport http before-the-lot https://beforethelot.com/mcp
~/.cursor/mcp.json
{
  "mcpServers": {
    "before-the-lot": {
      "url": "https://beforethelot.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "before-the-lot": {
      "type": "http",
      "url": "https://beforethelot.com/mcp"
    }
  }
}
Claude Desktop
Settings > Connectors > Add custom connector
URL: https://beforethelot.com/mcp

Tools 16 found in our last check

  • what_can_i_afford

    Works 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 a…

  • out_the_door

    Itemizes 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 whe…

  • check_quote

    Reads 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, f…

  • compare_quotes

    Ranks 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_quo…

  • rebate_vs_apr

    Compares 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 stat…

  • loan_payment

    The 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_check

    Works 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_check

    Compares 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_position

    Sizes 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 whe…

  • payoff_plan

    A 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 an…

  • get_method

    The 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…

  • state_rules

    A 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_email

    Drafts 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_page

    The 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 offer…

  • desk_script

    A 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…

  • plan_link

    Builds 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…

Details

Endpointhttps://beforethelot.com/mcp (Streamable HTTP)
First published28 Oct 2026
Last updated28 Oct 2026
Registry namecom.beforethelot/before-the-lot

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