RentBuy.org
Compare renting and buying a home over 30 years: scenarios, side-by-side comparisons, rent sweeps.
| Endpoint | https://rentbuy.org/api/mcp (streamable-http) |
|---|---|
| Registry version | 1.3.1 |
| Now | 4 tools · grade A (94) · pin ts_d0de93fd96539412092f86dc296af4d8 · protocol 2025-06-18 |
| First / last listed | 2026-11-09 00:58 UTC / 2026-11-09 00:58 UTC |
| Grade over time | 2026-11-09: A (94), 4 tools |
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Tools: rentbuy_run_scenario rentbuy_compare_scenarios rentbuy_sweep rentbuy_open_calculator
rentbuy_run_scenario | Runs 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 params: inputs, oneTimeCosts, detail |
rentbuy_compare_scenarios | Runs 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. params: scenarios* |
rentbuy_sweep | Varies 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" params: base, oneTimeCosts, axis*, secondAxis |
rentbuy_open_calculator | Opens 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 params: inputs, oneTimeCosts |
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