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CPI Inflation Calculator MCP Server

by theluckystrike Your server? Claim it
answering

CPI Inflation Calculator is answering right now. Last checked 5 min ago. It exposes 5 tools. Last commit 3 Nov 2026.

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

Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
91 of 91 checks
5
Tools
read from the server
225 ms
Response time
average over 24h
0
Stars
last commit 3 Nov 2026

Nothing serious here today

Today is the operative word: we check CPI Inflation Calculator every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 5 min ago.

run in your terminal
claude mcp add cpi-inflation-calculator-mcp --transport http https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp
Settings → Connectors → Add custom connector, then paste this address
https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp
~/.codex/config.toml
[mcp_servers.cpi-inflation-calculator-mcp]
url = "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "cpi-inflation-calculator-mcp": {
      "url": "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "cpi-inflation-calculator-mcp": {
      "type": "http",
      "url": "https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp"
    }
  }
}

Available tools 5

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

calculate
calculate_inflation
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.
calculate_social_security_cola
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.
compare
compare_raise_to_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.
inflation
get_inflation_rate
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.
latest
get_latest_cpi
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).

Endpoints

URLTransportStateLatencyChecked
https://cpi-inflation-calculator-mcp.lipmichal.workers.dev/mcp streamable-http answering 163 ms 5 min ago

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CPI Inflation Calculator — questions

Answers built from our own checks of this server.

What can CPI Inflation Calculator do?
It exposes 5 tools, read directly from the server on our last check. Among them: calculate_inflation, calculate_social_security_cola, compare_raise_to_inflation, get_inflation_rate, get_latest_cpi. 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 CPI Inflation Calculator 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 225 ms. The bar chart above shows every period we have measured.
How do I connect CPI Inflation Calculator?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does CPI Inflation Calculator need an API key?
No. CPI Inflation Calculator completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is CPI Inflation Calculator?
It answers our handshake in 225 ms on average, which is faster than 60% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is CPI Inflation Calculator open source?
The code is open source: it is published under the MIT licence, written in TypeScript and 0 stars on GitHub. The licence covers the code in the repository, not the hosted service at cpi-inflation-calculator-mcp.lipmichal.workers.dev, which runs on its operator's own terms.