Calcupedia
Search and run 2,400+ calculators and unit converters with exact results
Access Calcupedia's library of calculators for finance (mortgages, loans, taxes), health (BMI, calories), math, dates and unit conversions. Get verified results and shareable links for each calculation.
Try asking Muse: "What would my monthly mortgage payment be on a $400,000 home at 6.5% interest?"
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Source: Found in the official MCP Registry (io.calcupedia/calcupedia) · First listed October 29, 2026
Last 24 hours
Each bar is one check, every 15 minutes. Green means it answered. Last checked 54 min 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.
musedirectory.ai is not part of Meta. More about how Muse handles your information
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://calcupedia.io/api/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
Calcupedia 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://calcupedia.io/api/mcpWhat people ask Muse to do
Technical details: safety screening, tools, response time and recent checks
Response time at the last check: 1814ms. Worked in 100% 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 · 4
search_calculatorsSearches Calcupedia's 2,400+ calculators and unit converters by keyword (for example "mortgage", "bmi", "kg to lbs"). Returns matching calculators with their slug, category and page link; the top 3 also list their input keys, defaults and allowed values. Use it when the user wantcalculateRecalculates a calculator card after the user changes a value. Used by the card itself, not by the assistant.run_calculatorRuns one Calcupedia calculator with its verified formulas. Returns every result, a link that opens the calculator with the same values, and the inputs it accepts with their current values. Use it for finance, health, math, date and unit-conversion questions that need exact figureget_embed_linkReturns the link where a website owner can style a Calcupedia calculator and get the code to embed it on their own site (WordPress, Shopify, Webflow, Wix or plain HTML). Customizing needs no account; creating the embed needs a free Calcupedia account. Use it when someone wants a Recent checks
Link
https://calcupedia.io/api/mcpQuestions about Calcupedia in Muse
How do I connect Calcupedia to Muse?
Not in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Calcupedia to help me. It is a free service with an MCP server at https://calcupedia.io/api/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 Calcupedia working right now?
At the last check (October 29, 2026, 11:00 UTC) the endpoint was working, answering in 1814ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
Is Calcupedia 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 Calcupedia do in Muse?
It exposes 4 tools, including search_calculators, calculate, run_calculator, get_embed_link. For example, you could ask Muse: "What would my monthly mortgage payment be on a $400,000 home at 6.5% interest?"
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This listing was added from public sources (Found in the official MCP Registry (io.calcupedia/calcupedia)). If you build Calcupedia, claim it to correct the details and get your badge.
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/calcupedia"><img src="https://musedirectory.ai/badge/calcupedia.svg" alt="Calcupedia on musedirectory.ai" width="236" height="40"></a>