Compound Mint Money Calculator
Free money calculators for compound interest, debt payoff, 401(k) match, savings goals and early retirement.
Runs educational money calculations with no sign-in: compound interest, Rule of 72, Coast FIRE and FIRE numbers, 401(k) employer match using 2026 IRS limits, debt payoff with avalanche or snowball comparison, and savings goals. Also searches and reads Compound Mint guides. Results are not financial advice.
Try asking Muse: "If I put $500 a month into an index fund at 7% for 25 years, how much would I have, and what 401(k) match am I leaving on the table at a $90,000 salary?"
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Source: Found in the official MCP Registry (com.compoundmint/money-calculator) · First listed November 1, 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://compoundmint.com/wp-json/mint/v1/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
Compound Mint Money Calculator 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://compoundmint.com/wp-json/mint/v1/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 889ms. Worked in n/a of checks over 30 days.
Screening · November 1, 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 · 9
calculate_compound_interestFuture value of a starting amount plus optional monthly contributions at a yearly rate, with total contributed and total interest. Compounding is monthly by default (annually, quarterly, semiannually or daily on request). Returns a plain-English explanation, the assumptions and trule_of_72How long money takes to double at a yearly rate (send annual_rate), or the rate needed to double in a number of years (send years). Gives the Rule of 72 estimate and the exact figure. Example: at 8% money doubles in about 9 years.calculate_coast_fireFIRE number (yearly spending / withdrawal rate) and Coast FIRE number: what you need invested now so growth alone reaches your FIRE number by retirement age. Add current savings and a monthly contribution to see the gap and the age you reach Coast FIRE. Uses a real (after inflaticalculate_401k_matchYour yearly 401(k) contribution, the employer match, the percent needed for the full match and any match left unclaimed, using 2026 IRS limits ($24,500 employee, catch-up at 50 and over and at 60 to 63, $72,000 overall, $360,000 pay cap). Supports a two tier formula such as 100% calculate_debt_payoffOne debt: months to pay off and total interest at a monthly payment, or the payment needed to be debt free in target_months. Several debts: send debts (each with name, balance, apr, min_payment) and extra_payment to compare the avalanche and snowball methods.calculate_savings_goalMonthly amount to save to reach a target in a number of years at a yearly rate, counting money already saved. Example: $1,000,000 in 30 years at 8% needs about $671 a month.list_money_calculatorsLists every calculator tool with its inputs, an example and its REST endpoint.searchSearches Compound Mint calculators and personal finance guides. Returns results with id, title and url; read one with fetch.fetchReturns the text of one Compound Mint page by id (from search) or by URL.Link
https://compoundmint.com/wp-json/mint/v1/mcpQuestions about Compound Mint Money Calculator in Muse
How do I connect Compound Mint Money Calculator to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Compound Mint Money Calculator to help me. It is a free service with an MCP server at https://compoundmint.com/wp-json/mint/v1/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 Compound Mint Money Calculator working right now?
At the last check (November 1, 2026, 02:51 UTC) the endpoint was working, answering in 889ms. It is checked every 15 minutes.
Is Compound Mint Money Calculator safe to connect to Muse?
It was screened on November 1, 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 Compound Mint Money Calculator do in Muse?
It exposes 9 tools, including calculate_compound_interest, rule_of_72, calculate_coast_fire, calculate_401k_match. For example, you could ask Muse: "If I put $500 a month into an index fund at 7% for 25 years, how much would I have, and what 401(k) match am I leaving on the table at a $90,000 salary?"
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