MonsiTools Calculators
Find and run exact business, finance and SaaS calculators instead of guessing the math.
Connect it
Settings → Connectors → Add custom connector
URL: https://monsitools.com/mcpSettings → Apps & Connectors → Advanced → Developer mode
Create connector with URL: https://monsitools.com/mcp{
"mcpServers": {
"calculators": {
"url": "https://monsitools.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}claude mcp add --transport http calculators https://monsitools.com/mcp --header "Authorization: <value>"{
"servers": {
"calculators": {
"type": "http",
"url": "https://monsitools.com/mcp",
"headers": {
"Authorization": "<YOUR_AUTHORIZATION>"
}
}
}
}3 tools, verified live
search_calculatorsread-onlyFind MonsiTools calculators by keyword (for example 'runway', 'break even', 'roas', 'loan payment'). Returns each match's slug, name, category and input names. Use describe_calculator for details, then calculate to run one.
describe_calculatorread-onlyReturns a calculator's name, category, formula, input names and page URL, given its slug.
calculateread-onlyRuns a MonsiTools calculator on the given inputs and returns the result. Works without a key for 10 calculations a day per IP address. A MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting, removes the daily limit.
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