
LeaseIQ Pro
Exact lease finance calculations: equipment structuring, solvers, amortization, auto lease & loan
What it can do
What data it sees
Do you need an account
No: the server works without sign-in
Exact lease finance calculations: equipment structuring, solvers, amortization, auto lease & loan
How to connect
How to connect LeaseIQ Pro to Claude
The server address to paste into Claude settings:
https://leaseiq-pro.mcpize.run/mcp
- Open Claude (claude.ai or the desktop app).
- Go to Settings → Connectors.
- Click Add custom connector.
- Paste the server address copied below into Remote MCP server URL and click Add.
- In a chat, click + → Connectors and switch the new connector on.
Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.
Authorization
After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.
How to connect LeaseIQ Pro to ChatGPT
The server address to paste into ChatGPT settings:
https://leaseiq-pro.mcpize.run/mcp
- Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
- Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
- Open Settings → Connectors and click Create.
- Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
- Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
- In a new chat open + → Apps/Connectors and enable the connector.
OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.
Authorization
On first use ChatGPT opens the service's sign-in window. Sign in and approve access.
How to connect LeaseIQ Pro to Cursor
The server address to paste into Cursor settings:
https://leaseiq-pro.mcpize.run/mcp
Fastest: click Open in Cursor below and confirm the prompt.
Manually:
- In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
- Paste the JSON copied below into
~/.cursor/mcp.json(per project:.cursor/mcp.jsonin the repo root). - Save the file. The server appears in the MCP list; authorize it there if asked.
Authorization
If the service needs sign-in, an authorize button appears next to the server in the MCP list.
Server tool list (5)
Raw names from tools/list. Only developers need these.
| calculate_lease | Deterministic commercial equipment lease and finance calculator. Computes the exact periodic payment for equipment leases and equipment financing agreements: level payments, balloon, step-up/step-down, custom payment streams, interest-only periods, and skip/seasonal structures. Regression-tested against Excel-verified amortization to the penny. Use this instead of estimating lease payments: LLM arithmetic on compounding interest is unreliable, this engine is not. Returns payment, tax, interim rent, and totals (total interest, total of payments, final balance). |
| solve_lease_structure | Newton-Raphson reverse solver for commercial equipment leases. Given a known target payment, solves for the unknown deal variable: the implicit interest rate (yield) buried in a quote, the term length, the residual value, or the present value of a payment stream. This is the tool for questions like "what rate am I really paying?", "what residual makes this payment work?", or "what is this payment stream worth today?". Multi-variable iterative solving that LLMs cannot do reliably by hand. |
| generate_amortization_schedule | Generates the complete period-by-period amortization schedule for a commercial equipment lease or finance agreement: payment date, payment amount, interest portion, principal portion, and remaining balance for every period, plus totals. Supports all payment structures (level, balloon, step, skip/seasonal, interest-only) and both 30/360 and Actual/365 day counts. Use when the user needs the full payment schedule, a payoff balance at a specific period, or interest/principal splits for accounting. |
| calculate_auto_lease | Exact consumer car lease calculator using real captive-lender math: money factor rent charge, residual-based depreciation, state tax methods (monthly on payment, upfront on selling price, upfront on total lease, TAVT), fee capitalization, zero-drive-off iteration, and multiple security deposit (MSD) money-factor discounts with ROI. Accepts either a money factor (e.g. 0.00225) or an APR (auto-converted). Use to verify dealer quotes, compare lease offers, or compute drive-off and lease-end buyout amounts. |
| calculate_auto_loan | Exact auto loan payment calculator for vehicle purchases. Computes monthly payment, total interest, total cost, and upfront cash for financed purchases, or the all-in cost for cash purchases. Useful together with calculate_auto_lease for lease-versus-buy comparisons. |