RentBuy.org
Compare renting and buying a home over 30 years: scenarios, side-by-side comparisons, rent sweeps.
Connect it
Settings → Connectors → Add custom connector
URL: https://rentbuy.org/api/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://rentbuy.org/api/mcp{
"mcpServers": {
"rentbuy": {
"url": "https://rentbuy.org/api/mcp"
}
}
}claude mcp add --transport http rentbuy https://rentbuy.org/api/mcp{
"servers": {
"rentbuy": {
"type": "http",
"url": "https://rentbuy.org/api/mcp"
}
}
}4 tools, verified live
rentbuy_run_scenarioread-onlyRuns one 30-year rent-vs-buy comparison with the rentbuy.org model and returns the winner, the net worth of both households at year 30, the break-even year, totals, year-1 monthly cash and the fully resolved inputs. Hosts that support MCP Apps also show the result card. Give only the inputs you want to change; everything else uses the site defaults. Set detail to "yearly" to also get the 30 year-b
rentbuy_compare_scenariosread-onlyRuns 2 to 10 named scenarios side by side and returns each one's winner, year-30 net worth for both households, break-even year and year-1 cash, plus deltas against the first scenario. Each scenario is an independent set of input overrides and one-time costs on top of the site defaults, so name them by what changes ("15-year loan", "rent $4,500"). One call replaces many rentbuy_run_scenario calls.
rentbuy_sweepread-onlyVaries one input (or a grid of two) across a range and returns, for every point, the buyer-minus-renter net worth at year 30 after selling costs, the winner, both net worths and the break-even year, plus the interpolated crossover value where the winner flips for single-parameter sweeps. Give values[] or min, max and steps (2 to 50 per axis, at most 400 grid points). Other inputs come from "base"
rentbuy_open_calculatorread-onlyOpens an interactive rent-vs-buy calculator with editable inputs, net-worth charts, a year-by-year report and Monte Carlo sensitivity analysis. Use when the user wants to see or adjust a scenario. Pass the inputs and one-time costs from the scenario being discussed; missing inputs use the site defaults. rentbuy_run_scenario shows the same result card for a single scenario; rentbuy_compare_scenario
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