Financial calculators for trading, investing, retirement and inflation adjustments.
Free calculators for personal finance: risk/reward ratios, position sizing, profit/loss, retirement required minimum distributions, FIRE planning, emergency fund runway, Series I bond values, and inflation adjustments using US CPI data.
Try asking Muse: "Calculate how much I need to have invested today to reach my retirement goal without adding more money."
Source: Found in the official MCP Registry (com.economicium/mcp) · First listed September 24, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 19 min ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
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Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://economicium-mcp.economicium.workers.dev/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
Economicium is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://economicium-mcp.economicium.workers.dev/mcpResponse time at the last check: 279ms. Worked in 99.5% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
risk_rewardReward:risk ratio, breakeven win rate, and expectancy in R multiples from an entry, stop and target.position_sizeLot size, units and per-lot pip value from account risk, a stop distance, and an instrument.pip_valueCash value of one pip/point for a given instrument, lot size and account currency.marginNotional value, required margin, and effective leverage for a leveraged position.profit_lossCash result, pips, and return-on-margin for a closed or hypothetical trade.compoundingAccount growth curve, total return and the gain from compounding vs. simple interest.pivot_pointsClassic, Fibonacci, Camarilla and Woodie support/resistance levels from a prior high, low and close.fibonacci_levelsRetracement (0-100%) and extension (127.2-261.8%) price levels for a swing high/low.liquidation_priceEstimated liquidation price and distance from entry for a leveraged crypto position.rmdThis year's RMD from a prior-year-end IRA/employer-plan balance and age, per the IRS Uniform Lifetime Table.ibond_valueAccrued and redeemable value of a Series I savings bond, from its issue month, face value and an as-of month.financial_health_scoreA 0-100 score from savings rate, emergency fund coverage and debt-to-income, each against a named benchmark.real_wageWhether a pay change kept pace with inflation, in real (inflation-adjusted) terms, using annual US CPI.emergency_fundHow many months of runway a set of resources covers against monthly expenses, net of unemployment benefits and COBRA.coast_fireThe amount invested today that, growing alone with no further contributions, reaches a full FIRE number by retirement age.inflation_adjustWhat a dollar amount in one year is worth in another year's dollars, based on annual US CPI-U.fx_rateDaily ECB reference cross rate between two currencies.cpi_indexThe annual (yearly-average) US CPI-U index value for a given year.https://economicium-mcp.economicium.workers.dev/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use Economicium to help me. It is a free service with an MCP server at https://economicium-mcp.economicium.workers.dev/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 14:45 UTC) the endpoint was working, answering in 279ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on September 24, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
It exposes 18 tools, including risk_reward, position_size, pip_value, margin. For example, you could ask Muse: "Calculate how much I need to have invested today to reach my retirement goal without adding more money."
This listing was added from public sources (Found in the official MCP Registry (com.economicium/mcp)). If you build Economicium, claim it to correct the details and get your badge.
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