Calcfi Mcp

Name: Calcfi Mcp
Author: jeresalmisto

@jeresalmisto

关于 Calcfi Mcp

24 free personal-finance + macro tools (mortgage, paycheck, tax, FRED, BLS) for LLM agents. Zero API keys, stdio transport.

#finance #fintech #calculators #mortgage #tax #fred #bls #irs #personal-finance #stdio #claude #cursor

基本信息

分类

其他

传输方式

stdio

发布者

jeresalmisto

提交者

Jere Salmisto

配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "calcfi": {
      "command": "npx",
      "args": [
        "-y",
        "calcfi-mcp-server"
      ]
    }
  }
}

工具

未检测到工具

工具是从 README 中自动提取的。维护者可以在 ## Tools 标题下列出工具,即可填充这部分内容。

概览

What is CalcFi MCP?

CalcFi MCP is a free, open-source server exposing 24 personal-finance and macroeconomic tools to LLM agents. It covers mortgage calculations, paycheck withholding, tax brackets, FRED data, BLS labor statistics, and more without requiring any API keys.

How to use CalcFi MCP?

Install the server via npm (npx -y calcfi-mcp-server) or pip (pip install calcfi-mcp), then add the configuration to any MCP client (Claude Desktop, Cursor, Cline, etc.). The server uses stdio transport.

Key features of CalcFi MCP

24 deterministic calculators across personal finance and macro data
No API keys, no signup, MIT licensed
Source-cited outputs (IRS, Fed, BLS, Treasury, Census, HUD, Freddie Mac)
Live FRED, BLS, mortgage rate, and Treasury yield data
Tools run in code, not LLM‑predicted

Use cases of CalcFi MCP

Calculate mortgage payments and amortization schedules with current rates
Estimate take‑home pay including federal and state withholding
Look up FRED economic series or BLS labor statistics
Plan retirement savings with Monte Carlo simulations
Compare debt payoff strategies (snowball vs. avalanche)

FAQ from CalcFi MCP

Does CalcFi MCP require an API key?

No. All tools are free and work without any API keys or signup. The server uses public financial data updated daily.

What data sources power the calculations?

Every tool references primary sources: IRS publications, Federal Reserve Economic Data (FRED), BLS tables, Treasury yield curves, Census ACS, HUD FMR, and Freddie Mac PMMS.

How is CalcFi MCP different from an LLM answering financial questions?

All calculations are deterministic and run in code, not predicted by the model. Outputs include the specific source reference, eliminating hallucinated tax brackets or mortgage rates.

What transport does CalcFi MCP use?

The server communicates over stdio transport, making it compatible with any MCP client that supports stdin/stdout.

Is CalcFi MCP free to use?

Yes, it is completely free and open source under the MIT license. No paid tiers or usage limits are mentioned.

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