MCP Server

MonsiTools Calculators

com.monsitools/calculators
Business & Operations Finance & Investing Public & reachable MCP 2026-07-28

What this MCP does

Searches, describes, and runs business, finance, and SaaS calculators using defined formulas and inputs.

calculate
Run a calculator
Runs a MonsiTools calculator on the given inputs and returns the result. Needs a MonsiTools Premium API key, sent as 'Authorization: Bearer mt_live_...' when connecting.
Read only
Input schema
{'type': 'object', 'required': ['slug', 'inputs'], 'properties': {'slug': {'type': 'string', 'description': 'Calculator slug from search_calculators.'}, 'inputs': {'type': 'object', 'description': 'Input name to number, for every input the calculator lists.', 'additionalProperties': {'type': 'number'}}}}
describe_calculator
Describe a calculator
Returns a calculator's name, category, formula, input names and page URL, given its slug.
Read only
Input schema
{'type': 'object', 'required': ['slug'], 'properties': {'slug': {'type': 'string', 'description': "Calculator slug, e.g. 'saas-runway-calculator'."}}}
search_calculators
Search MonsiTools calculators
Find 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.
Read only
Input schema
{'type': 'object', 'required': ['query'], 'properties': {'limit': {'type': 'integer', 'maximum': 50, 'minimum': 1, 'description': 'Maximum results (default 10).'}, 'query': {'type': 'string', 'description': 'Words to match against calculator names, categories and input names.'}, 'category': {'type': 'string', 'description': "Optional exact category name, e.g. 'SaaS Metrics'."}}}
Added
calculate
Oct. 3, 2026, 2:40 a.m.
Added
describe_calculator
Oct. 3, 2026, 2:40 a.m.
Added
search_calculators
Oct. 3, 2026, 2:40 a.m.