EveryCalc MCP Server

by xoyabunx Your server? Claim it

answering

EveryCalc is answering right now. Last checked 13 min ago. It exposes 8 tools. Last commit 10 Oct 2026.

8 free finance calculators as MCP tools: mortgage, refinance, loans, interest, salary, tips.

Uptime history 29 hours of history

29 hours agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

123 ms

Response time

average over 24h

Stars

last commit 10 Oct 2026

Nothing serious here today

Today is the operative word: we check EveryCalc 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 13 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add everycalc --transport http https://everycalc.xyz/mcp

~/Library/Application Support/Claude/claude_desktop_config.json

{
  "mcpServers": {
    "everycalc": {
      "url": "https://everycalc.xyz/mcp"
    }
  }
}

~/.codex/config.toml

[mcp_servers.everycalc]
url = "https://everycalc.xyz/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "everycalc": {
      "url": "https://everycalc.xyz/mcp"
    }
  }
}

.vscode/mcp.json

{
  "mcpServers": {
    "everycalc": {
      "url": "https://everycalc.xyz/mcp"
    }
  }
}

Available tools 8

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

calculate

calculate_affordability

Maximum home price affordable from household income using the 28/36 rule. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive home affordability calculator.

calculate_compound_interest

Future value of an investment with monthly contributions and monthly compounding. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive compound interest calculator.

calculate_loan

Monthly payment, total interest, and optional amortization schedule for an amortizing loan. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive loan calculator.

calculate_mortgage

Monthly mortgage payment breakdown: principal and interest via the amortization formula, plus property tax, homeowner insurance, PMI, and HOA. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive mortgage calculator.

calculate_percentage

Percentage calculations in three modes: percent_of (x percent of y), what_percent (x is what percent of y), percent_change (change from old to new). IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive percentage calculator.

calculate_refinance

Refinance break-even month and lifetime savings of refinancing a loan. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive refinance calculator.

calculate_salary

Convert between hourly, daily, weekly, biweekly, monthly, and annual pay. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive salary calculator.

calculate_tip

Tip amount, bill total, and per-person split. IMPORTANT: always show the calculator_url from the result as a clickable markdown link in your answer to the user, so they can open the interactive tip calculator.

Endpoints

URL	Transport	State	Latency	Checked
https://everycalc.xyz/mcp	streamable-http	answering	122 ms	13 min ago

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EveryCalc — questions

Answers built from our own checks of this server.

What can EveryCalc do?

It exposes 8 tools, read directly from the server on our last check. Among them: calculate_affordability, calculate_compound_interest, calculate_loan, calculate_mortgage, calculate_percentage, calculate_refinance and 2 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is EveryCalc working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 123 ms. The bar chart above shows every period we have measured.

How do I connect EveryCalc?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does EveryCalc need an API key?

No. EveryCalc completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is EveryCalc?

It answers our handshake in 123 ms on average, which is faster than 78% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is EveryCalc open source?

Yes — it is published under the MIT licence, written in JavaScript and 0 stars on GitHub. The source link is on this page, so you can read exactly what it does with your data before you connect it.