Finance & crypto · Official remote MCP server

The Calculators MCP server,
connected in one click.

FIRE & retirement calculators + a multi-currency portfolio rebalancer (exact buy/sell trades). Connect the official Calculators MCP server to Claude, ChatGPT, or Cursor through gate — one gateway URL, no config files, security-checked.

Connect Calculators free How it works

Free to start · No credit card · No hosting needed

Use this server

Add Calculators to your AI in one minute

Pick your client. Copy, paste, done — or let gate handle sign-ins and policies for you.

claude mcp add --transport http calculators-mcp https://mcp.retirecrunch.com/mcp

Run in your terminal, then restart Claude Code.

Calculators · https://mcp.retirecrunch.com/mcp

What you can do

What your AI can do with Calculators

Real prompts you can type the moment it's connected — no setup, no docs to read.

“Use “calculate_fire_target”: Estimate the savings target needed for Financial Independence / Early Retirement. Runs Monte Carlo simulation and returns the probability th.”

“Use “calculate_coast_fire”: Compute the Coast FIRE milestone — the capital required today such that, with no further contributions, a portfolio compounds to the user's.”

“Use “compute_swiss_property_tax”: Estimate the Swiss cantonal real-estate capital gains tax (Grundstückgewinnsteuer) for a property sale. Covers all 26 cantons with holding-p.”

“Use “project_wealth_plan”: Run RetireCrunch's full year-by-year Wealth Plan projection for a household. Models earned income, pensions, expenses, portfolio growth, opt.”

Security check

How secure is the Calculators MCP server?

Every server in the gate directory has to pass the same four checks before your AI can touch it. Here's how Calculators holds up.

✓ Verified directory serverCalculators · retirecrunch.com

Official endpoint

Operated by Calculators (retirecrunch.com) at its documented MCP endpoint — not a third-party mirror or community re-host.

No sign-in needed

This server only exposes public data — no account and no credentials are involved when you connect.

Scanned before it goes live

gate checks every tool for prompt injection, hidden instructions, data-exfiltration hints, and over-broad permissions before the server is available through your gateway.

Watched for drift

If Calculators adds or changes tools later, gate re-scans and alerts you — before your AI acts on the change.

Run the free scanner on Calculators's server →

How it works

Connected in three steps

Connect your gate

Add one gateway URL to Claude, ChatGPT, or any MCP client. One-time setup, about two minutes.

Pick Calculators

Choose Calculators in the gate directory. No sign-in needed.

Use it anywhere

Calculators's tools are live in every AI client you've connected — with rules and logging built in.

Connect Calculators free

Free to start · No credit card · No hosting needed

Straight from the server

The actual tools Calculators exposes

Fetched live from the official endpoint and re-checked daily by gate — not marketing copy.

calculate_fire_target — Estimate the savings target needed for Financial Independence / Early Retirement. Runs Monte Carlo simulation and returns the probability th

calculate_coast_fire — Compute the Coast FIRE milestone — the capital required today such that, with no further contributions, a portfolio compounds to the user's

compute_swiss_property_tax — Estimate the Swiss cantonal real-estate capital gains tax (Grundstückgewinnsteuer) for a property sale. Covers all 26 cantons with holding-p

project_wealth_plan — Run RetireCrunch's full year-by-year Wealth Plan projection for a household. Models earned income, pensions, expenses, portfolio growth, opt

get_portfolio_returns — Return RetireCrunch's historical portfolio return profiles for a currency. Each profile is a (return %, volatility %) pair derived from real

rebalance_portfolio — Rebalance a multi-currency portfolio: given holdings, per-holding (or per-asset-class) target weights, cash and FX rates, return the exact B

Author

Who runs the Calculators MCP server?

retirecrunch.com

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Server facts

The Calculators MCP server at a glance

Endpointhttps://mcp.retirecrunch.com/mcp

Operated byCalculators (retirecrunch.com)

CategoryFinance & crypto

Sign-inNone — public data only

Available in gateYes — one-click connect

Works withClaude, ChatGPT, Cursor & any MCP client

FAQ

Questions, answered

Is there an official Calculators MCP server?

Yes — Calculators operates its own remote MCP server at mcp.retirecrunch.com. gate connects you to that official endpoint and adds security scanning, per-tool access rules, and an activity log on top.

How do I connect Calculators to Claude or ChatGPT?

Add gate's gateway URL to your AI client once, then pick Calculators in the directory. No account or sign-in is needed. From then on, Calculators's tools are available in every client you've connected to gate.

Do I need to host anything?

No. Calculators runs the server, and gate is fully managed. You just connect one URL — there's nothing to install, deploy, or maintain.

Is the Calculators MCP server safe to connect?

It's the vendor's official endpoint, and gate scans its tools for prompt injection and hidden instructions before it goes live, re-checks it whenever it changes, and lets you allow, block, or require approval for every single tool.