CPI Inflation Calculator MCP server

Gives an AI assistant the official U.S. Consumer Price Index from the Bureau of Labor Statistics, from 1913 to the latest published month, checked live against the BLS API. It knows CPI releases newer than its training data, and that BLS published no October 2025 CPI. Every result shows the index values used.

Connect

Hosted endpoint (Streamable HTTP, no sign-in, no token). Paste it into Claude.ai custom connectors or ChatGPT developer mode.

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

Local (stdio)

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

Tools

calculate_inflationAdjust a dollar amount between any two months or years from 1913 to the latest BLS release (CPI-U, CPI-W or core CPI).
get_latest_cpiLatest CPI month from BLS, checked live: 12-month inflation for CPI-U, core CPI and CPI-W.
get_inflation_rateAnnual-average and December-to-December inflation for any year, plus the current 12-month rate.
compare_raise_to_inflationWhether a raise beat inflation: real raise, pay needed to keep pace, gain or shortfall.
calculate_social_security_colaSocial Security COLA from Q3 CPI-W with the statutory formula (3.6% for 2027).

Check a raise after taxes: pay raise calculator on statewage.com. Source: github.com/theluckystrike/cpi-inflation-calculator-mcp.

Data: U.S. Bureau of Labor Statistics. General information, not financial advice. Part of the Zovo MCP collection: mcp.zovo.one.