MonsiTools Calculators is answering right now. Last checked 11 min ago. It exposes 3 tools.
Find and run exact business, finance and SaaS calculators instead of guessing the math.
What changed 1
Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 9 October 2026. No other catalogue keeps this.
Nothing serious here today
Today is the operative word: we check MonsiTools Calculators every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.
Connect this server
Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.
claude mcp add calculators --transport http https://monsitools.com/mcp{
"mcpServers": {
"calculators": {
"url": "https://monsitools.com/mcp"
}
}
}[mcp_servers.calculators]
url = "https://monsitools.com/mcp"{
"mcpServers": {
"calculators": {
"url": "https://monsitools.com/mcp"
}
}
}{
"mcpServers": {
"calculators": {
"url": "https://monsitools.com/mcp"
}
}
}Available tools 3
Read directly from the server with tools/list, grouped by what they act on.
If a tool disappears, we record the date.
calculate
search_calculators
describe_calculator
Endpoints
| URL | Transport | State | Latency | Checked |
|---|---|---|---|---|
| https://monsitools.com/mcp | streamable-http | answering | 68 ms | 11 min ago |
Alternatives to MonsiTools Calculators
same job, measured the same wayFree finance and trading calculators as MCP tools: risk/reward, RMD, Coast FIRE, inflation.
44 calculators for AI agents: US tax, finance, business + an MCP engineering & security suite.
8 free finance calculators as MCP tools: mortgage, refinance, loans, interest, salary, tips.
High-precision finance & business calculations for AI agents — exact decimals, never floats.
140+ calculators and data tools — finance, health, science, global comparisons and more.
Magic: The Gathering card prices, movers, arbitrage, sealed box EV, and seller inventory tools.
Free money calculators: option expiry risk, debt avalanche, cash runway, subscriptions, invoices.
30 finance, bookkeeping, legal-ops and SMB operations skill products. 6 of 8 tools free.
MonsiTools Calculators — questions
Answers built from our own checks of this server.