
Connect Mortgage Payment Comparator to ChatGPT and Claude
Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Run complex loan scenarios and find your best monthly payment.
Developed, maintained, and hosted by Vinkius.
MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED
Waiting for input…
Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.
Your AI does the work. We keep it safe and sound.
No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.
Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

Each Connector runs inside its own sealed environment.
Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.
One switch stops every agent. Instantly.
One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.
Spending limits that pause instead of surprise.
Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.
Three controls, built into the layer your AI connects through.
Curated set · 4 capabilities
We ship only the actions that matter.
01-04
4 capabilities in this set.
Part of 4 available through Mortgage Payment Comparator.
- 01
Calculate single option
This capability performs a deep dive into one specific mortgage scenario to show you the full cost breakdown.
- 02
Compare loan options
Use this to rank multiple mortgage scenarios against each other based on your specific financial priorities.
- 03
Evaluate affordability
This capability checks if a loan fits within your defined monthly budget and available cash.
- 04
Find optimal down payment
This capability calculates the exact down payment you need to reach a specific target monthly payment.
Real work
What teams actually run
Comparing Interest Rates
Compare a 30-year fixed rate against a 15-year fixed rate to see the total interest difference.
Budgeting for a New Home
Check if a specific house price and tax rate will keep your monthly payment under a certain limit.
Down Payment Strategy
Determine how much extra cash you need to put down to lower your monthly payment to a specific number.
Total Cost Analysis
Get a full breakdown of monthly payments, total interest, and closing costs for a single loan.
One connector, every AI
Mortgage Payment Comparator works with the most popular AI clients.
These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.
Claude
ChatGPT
Gemini
Perplexity
Grok
Microsoft Copilot
Cursor
VS Code
Windsurf
JetBrains
Cline
LangChain
Vercel AI SDK
Lovable
Z.ai
Raycast
Qwen Code
Kimi Code
Le ChatBuilding your own app? The connector is yours to use.
You don't need a client to put Mortgage Payment Comparator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.
Observed, not estimated
897ms average. Fast in production.
Mortgage Payment Comparator is checked daily against the live service.
- Fastest day
- 714ms
- Slowest day
- 1069ms
- 14-day trend
- Stable+2%
Connect your client
One URL. Every client.
Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.
Preview access · not provider authentication
The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Mortgage Payment Comparator, so you can see the experience inside your AI.
It does not authenticate your account with Mortgage Payment Comparator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.
Mortgage Payment Comparator Connector
You're all set. Choose your MCP client and follow the setup instructions.
https://edge.vinkius.com/vk_preview_5IGMxPAZYy3ICdfwiFrnrYlf4imVLx0cwTZEpA1Y/mcpClaude Desktop
Follow the steps below to connect in seconds.
- 1In Claude Desktop, open Settings → Connectors.
- 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
- 3Click Add and start a new chat — Mortgage Payment Comparator capabilities are ready to use.
{
"mcpServers": {
"mortgage-payment-comparator-mcp": {
"url": "https://edge.vinkius.com/vk_preview_5IGMxPAZYy3ICdfwiFrnrYlf4imVLx0cwTZEpA1Y/mcp"
}
}
}
Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline
Step-by-step instructions for each client are in the guide. How to connect
Guided setup for Claude? Set up Mortgage Payment Comparator in Claude and other AIs
Who it's for
Built for the work Mortgage Payment Comparator owners hand off.
This MCP is built for anyone managing real estate finances or home buying decisions through an AI interface.
- 01
Home Buyers
Use it to run different loan scenarios to see which one fits your budget.
- 02
Real Estate Professionals
Hand off the math to your agent to quickly compare options for clients.
- 03
Financial Planners
Use the capability to verify how different mortgage terms impact a client's long term cash flow.
FAQ
Questions Mortgage Payment Comparator owners ask.
- 01
What can this MCP do for my mortgage math?
It lets your AI client compare different loan scenarios, calculate monthly payments, determine total interest, and find the necessary down payment to hit a target budget.
- 02
Can I use this with Claude or Cursor?
Yes, this MCP is compatible with any MCP-compatible client, including Claude, Cursor, Windsurf, and VS Code.
- 03
How do I find out how much down payment I need?
You can ask your agent to use the find_optimal_down_payment capability by providing the home price, interest rate, and your target monthly payment.
- 04
Does this capability handle taxes and HOA fees?
Yes, you can include taxes, insurance, and HOA fees in your request to get an accurate monthly payment calculation.
- 05
Is there a way to rank different loan offers?
Yes, you can use the compare_loan_options capability to rank multiple scenarios based on what matters most to you, like the lowest monthly payment.
- 06
How can I compare multiple loan offers at once?
You can use the compare_loan_options capability. Simply provide a list of your loan scenarios and specify if you want to rank them by monthly payment, total interest, or cash to close.
- 07
Can I check if a mortgage fits my monthly budget?
Yes, the evaluate_affordability capability allows you to input your maximum monthly budget and available cash to see if a specific loan option is viable.
- 08
How do I calculate the required down payment for a specific monthly target?
Use the find_optimal_down_payment capability. It calculates the necessary upfront amount needed to ensure your monthly payment stays within your desired limit.
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Connect Mortgage Payment Comparator to Claude, Cursor, ChatGPT & more
