CPI Inflation Calculator

io.github.theluckystrike由 GitHub 帳號 theluckystrike 發布v1.0.0更新於 Nov 3, 2026

通脹計算器，採用BLS官方CPI資料，覆蓋1913年至最新月份，可計算加薪與通脹比較及SS COLA。

AI 翻譯由 AI 模型根據下方的原文描述翻譯，可能有誤。

原文描述

Inflation calculator with official BLS CPI 1913 to the latest month, raise vs inflation, SS COLA.

發布方自己的服務：Calculator Tools MCP

已驗證Streamable HTTP可網頁執行

概覽

CPI Inflation Calculator 的託管 MCP 服務（cpi-inflation-calculator-mcp.lipmichal.workers.dev）；無需登入；Streamable HTTP；5 個工具。

暫無 AI 概覽：以下資訊來自註冊中心條目和服務本身。

端點
cpi-inflation-calculator-mcp.lipmichal.workers.dev
最近檢查

安裝

在 SourceWeft 中

  1. 開啟 儀表板中的 CPI Inflation Calculator，將其新增到工作區。
  2. 為需要使用其工具的對話啟用該服務。

Web executable，透過 Streamable HTTP。 遠端服務在工作區中設定後即可從網頁執行環境執行。

交給代理程式安裝

把這段提示詞貼上到 Claude Code、Codex、Cursor 等代理程式，或 SourceWeft 對話中。代理程式會讀取該伺服器的安裝指南，先向你展示發布者、端點和登入方式，經你同意後再把它新增到你的客戶端。金鑰不會寫進任何命令。

閱讀 https://sourceweft.com/mcp/io.github.theluckystrike%2Fcpi-inflation-calculator-mcp/install.md，並按其中說明把這個 MCP 伺服器接入我的客戶端。修改任何設定之前，先告訴我它的發布者、端點和登入方式，等我確認。不要把 API 金鑰寫進命令或我會提交的檔案；問我金鑰應從哪裡取得。

檢視代理程式所依據的安裝指南

其他 MCP 客戶端

把它新增到你客戶端的 mcpServers 設定中。

{
  "mcpServers": {
    "cpi-inflation-calculator": {
      "type": "http",
      "url": "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

README

cpi-inflation-calculator-mcp

An MCP server that gives an AI assistant the official U.S. Consumer Price Index from the Bureau of Labor Statistics, from 1913 to the latest published month, so it can adjust any dollar amount for inflation, report the current inflation rate, check whether a raise kept pace, and compute the Social Security COLA. It checks the BLS API live for months newer than its training data.

Hosted endpoint, no sign-in and no token:

https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp

Tools

ToolWhat it does
calculate_inflationAdjusts an amount between any two months (YYYY-MM) or years (YYYY, annual average) from 1913 to the latest month. CPI-U by default, or CPI-W or core CPI. Returns the adjusted amount, cumulative and average annual inflation, and the index values used.
get_latest_cpiThe latest CPI month from BLS with the 12-month change for CPI-U, core CPI and CPI-W, the 1-month change and the year-to-date change.
get_inflation_rateAnnual-average and December-to-December inflation for any year since 1914, plus the latest 12-month rate for the current year.
compare_raise_to_inflationNominal raise, inflation, real raise, the pay needed to keep pace and the gain or shortfall.
calculate_social_security_colaThe COLA from Q3 CPI-W with the statutory formula, with the index values behind it.

Every result has structured JSON, a plain-English summary, data_status (live or bundled, latest month), as_of, source (the BLS series) and more (a pay raise calculator on statewage.com).

What it knows that your model does not

  • CPI index values through September 2026 (CPI-U 336.940), with a live check for anything newer.
  • Inflation was 3.7% over the 12 months to September 2026 (CPI-U, not seasonally adjusted). Core CPI was 2.6%.
  • BLS published no October 2025 CPI. Data were not collected during the 2025 lapse in appropriations. The tools say so instead of inventing a value, and still use the official 2025 annual average (321.943, 2.6% inflation).
  • The 2027 Social Security COLA is 3.6%. The tool reproduces it from Q3 2026 CPI-W (average 328.746 against 317.265), and also reproduces 2023 to 2026.

Install

Claude.ai custom connector or ChatGPT developer mode

Add a custom connector and paste the URL. No token is needed.

https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp

Claude Code

claude mcp add --transport http cpi-inflation https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp

Or run it locally:

claude mcp add cpi-inflation -- npx -y github:theluckystrike/cpi-inflation-calculator-mcp

Claude Desktop

Add this to claude_desktop_config.json:

json
{  "mcpServers": {    "cpi-inflation": {      "command": "npx",      "args": ["-y", "github:theluckystrike/cpi-inflation-calculator-mcp"]    }  }}

Cursor

Add this to ~/.cursor/mcp.json:

json
{  "mcpServers": {    "cpi-inflation": {      "url": "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"    }  }}

VS Code

Add this to .vscode/mcp.json:

json
{  "servers": {    "cpi-inflation": {      "type": "http",      "url": "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"    }  }}

Node 20 or newer is needed for the local npx version. Optional: set BLS_API_KEY to a free BLS registration key for a higher live-data quota.

Example prompts

  • "What is $1,000 from 2000 worth today?"
  • "What is the current inflation rate, and what was core inflation?"
  • "What was inflation in 2025? Was any month missing?"
  • "My salary went from $60,000 in January 2025 to $63,000 now. Did I beat inflation?"
  • "How is the 2027 Social Security COLA calculated?"
  • "Convert $50 in 1970 to 2026 dollars using CPI-W."

Data sources

U.S. Bureau of Labor Statistics CPI series CUUR0000SA0, CWUR0000SA0 and CUUR0000SA0L1E, fetched from the BLS Public Data API on 2026-11-03, plus a live check on each call. The COLA rule is 42 U.S.C. 415(i). See DATA_SOURCES.md.

Limitations

  • General information, not financial advice.
  • U.S. city average, not seasonally adjusted. No regional or item-level indexes (food, rent, gas).
  • The keyless BLS API caps daily requests per IP address. When the cap is hit, the hosted server answers from bundled data through September 2026 and says so in data_status.
  • Periods with no annual average yet (the current year) use the latest month of that year, with a note.

More

Check a raise after taxes with the pay raise calculator and the Social Security tax calculator on statewage.com.

Part of the Zovo MCP collection: https://mcp.zovo.one

Development

npm installnpm run buildnpm test

src/core.ts holds the CPI math and has no I/O. src/data.ts is the bundled BLS data. src/live.ts checks the BLS API for newer months. src/stdio.ts is the local entry and src/worker.ts is the Cloudflare Worker entry. Both use the same tool registry in src/tools.ts.

License

MIT

More data servers from the same author

Each one is free, needs no API key and has a hosted URL you can paste into Claude or ChatGPT.

servertoolshosted URL
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The paid back-office collection (invoices, VAT, PDFs, spreadsheets) is at https://mcp.zovo.one

來源：README.md，提交 005d1e7

工具

5

calculate_inflation

Inflation calculator (CPI, 1913 to latest month)

Adjusts a dollar amount for inflation between any two periods from 1913 to the latest month the U.S. Bureau of Labor Statistics has published, using the official CPI-U (or CPI-W or core CPI). Checks the BLS Public Data API live for months newer than its bundled data (bundled through September 2026, fetched 2026-11-03), so it knows CPI figures newer than a model's training data. Handles the October 2025 gap: BLS published no October 2025 CPI because of the 2025 lapse in appropriations. Returns the adjusted amount, cumulative and average annual inflation, and the exact index values used.

輸入參數tofrom必填amount必填series

get_latest_cpi

Latest CPI release (live from BLS)

Returns the most recent CPI index values published by the Bureau of Labor Statistics, checked live against the BLS Public Data API: the latest month, the 12-month inflation rate for headline CPI-U, CPI-W and core CPI (less food and energy), the not seasonally adjusted 1-month change, and the year-to-date change. Use it to answer 'what is inflation right now'. If the live check fails it says so and falls back to bundled BLS data (through September 2026).

無需輸入參數。

get_inflation_rate

Annual inflation rate for a year

Returns the official U.S. inflation rate for a calendar year from BLS CPI data: annual-average change (BLS annual averages, including the 2025 average published despite the missing October 2025 index), December-to-December change, and for the current year the latest 12-month rate. Years 1914 to the present for CPI-U and CPI-W, 1958 onward for core CPI.

輸入參數year必填series

compare_raise_to_inflation

Did a pay raise beat inflation?

Compares a pay change with CPI inflation over the same period using official BLS data through the latest published month (checked live). Returns the nominal raise, inflation, the real (inflation-adjusted) raise, the pay needed to keep pace, and the gain or shortfall. Works for salaries, hourly wages, rents or any recurring amount.

輸入參數tofrom必填seriesnew_pay必填old_pay必填

calculate_social_security_cola

Social Security COLA from CPI-W

Computes the Social Security cost-of-living adjustment for a year with the statutory formula: average CPI-W for July-September of the prior year over the same quarter a year earlier, rounded to 0.1%. Uses official BLS CPI-W values (live check). Reproduces the 3.6% COLA for 2027 that SSA announced in October 2026, and shows the Q3 index values behind it. Covers 1976 onward.

輸入參數cola_year必填

版本歷史

1
  1. v1.0.0最新Nov 3, 2026

評分

已滿足適用檢查項的 100%

該評分衡量此收錄條目的完整程度，依據註冊中心條目、端點與公開來源計算得出。它不是對伺服器本身的評價，也不表示伺服器安全或目前可用：可連通性是帶日期的檢查結果，評分也不包含安裝量或使用者評價。

  • 近 30 天內可連通必需25 分
  • 已宣告認證方式必需10 分
  • 已列出工具必需15 分
  • 描述必需15 分
  • 圖示10 分
  • 文件15 分
  • 授權條款10 分

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