Mortgage Tools by Jenny
Canadian mortgage calculators for renewals, extra payments, break-or-stay decisions, and debt consolidation.
Compares Canadian mortgage renewal offers, calculates the impact of extra payments, evaluates breaking a mortgage early versus staying, and models debt consolidation scenarios. Requires user-supplied figures and lender quotes; does not search rates or estimate penalties.
Try asking Muse: "Should I break my mortgage early to switch to a lower rate, and what will the penalty cost me?"
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Source: Found in the official MCP Registry (mortgage.jenny/jenny-mortgage-tools) · First listed October 29, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 2 h ago.
Is it safe to connect?
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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How to add it to Muse
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://mcp.jenny.mortgage/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Also use it in ChatGPT or Claude
Mortgage Tools by Jenny is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
Add it to ChatGPT
- 1
Open ChatGPT settings
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
- 2
Turn on developer mode
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
- 3
Create the connector
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
- 4
Use it in a chat
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
Add it to Claude
- 1
Open Claude settings
In Claude, open Settings, then Connectors.
- 2
Add a custom connector
Choose Add custom connector, give it a name, and paste the link.
- 3
Connect and use it
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://mcp.jenny.mortgage/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 5198ms. Worked in 0% of checks over 30 days.
Screening · October 29, 2026
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
Tools · 6
diagnose_mortgage_comparisonUse this first when a user wants a Canadian mortgage renewal, extra-payment, break-or-stay or debt-consolidation comparison but has not yet given the key figures. From the facts already supplied, returns the missing ones in priority order and up to three questions to ask (balancecompare_renewal_offersUse this when a user has two or three Canadian mortgage offers for the same balance, such as a renewal letter from the current lender and a quote to switch lender at renewal, and wants them compared. Compares the user-supplied rates, terms, amortizations, cashback and switching cplan_mortgage_prepaymentsUse this when a user asks what paying extra on one Canadian mortgage would do: a higher regular payment, recurring extra payments, or up to 50 lump sums. Compares the supplied mortgage with and without the extras: interest, debt left and modeled payoff period. Checks the extras acompare_break_or_stayUse this when a user is partway through a Canadian mortgage term and asks whether to break the mortgage early (to refinance the same debt, switch lender or take a lower rate) or stay until the term ends. Compares keeping it with a user-supplied replacement offer, counting the lencompare_debt_consolidationUse this when a user asks about rolling other debts into a Canadian mortgage (debt consolidation), for example credit-card, car-loan or existing line-of-credit or HELOC balances, each entered with a fixed monthly payment or as interest-only. Compares three scenarios over a commonget_mortgage_guideUse this when a user asks how to prepare for or understand a supported Canadian mortgage topic and is not asking for a calculation: renewal, switching costs, unequal terms, payment versus cost, renewal checklist, prepayments, break or stay, debt consolidation, or the calculation Recent checks
Link
https://mcp.jenny.mortgage/mcpQuestions about Mortgage Tools by Jenny in Muse
How do I connect Mortgage Tools by Jenny to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Mortgage Tools by Jenny to help me. It is a free service with an MCP server at https://mcp.jenny.mortgage/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
Is Mortgage Tools by Jenny working right now?
At the last check (October 29, 2026, 09:45 UTC) the endpoint was having trouble, answering in 5198ms. Over the last 7 days it answered 0% of health checks. It is checked every 15 minutes.
Is Mortgage Tools by Jenny safe to connect to Muse?
It was screened on October 29, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
What can Mortgage Tools by Jenny do in Muse?
It exposes 6 tools, including diagnose_mortgage_comparison, compare_renewal_offers, plan_mortgage_prepayments, compare_break_or_stay. For example, you could ask Muse: "Should I break my mortgage early to switch to a lower rate, and what will the penalty cost me?"
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