Which inflation? Fed's preferred measure of inflation PCE inflation
Links in this post
The Fed - Meeting calendars and information (federalreserve.gov)
Personal Consumption Expenditures Price Index | U.S. Bureau of Economic Analysis (BEA)
PCE inflation
FOMC uses PCE inflation as their key reference rather than the CPI. Originally, this is published by the US Bureau of Economic Analysis, and is a monthly number. There is one month lag of the release. The most current release is March 31, 2023 which shows a 5% increase of PCE price index from a year ago.
How do you retrieve this from the Fed Economic Data Center though? I assume you will be interested in seeing the historical charts and potentially retrieve the data from a api or sth.
In here, Personal Consumption Expenditures: Chain-type Price Index (PCEPI) | FRED | St. Louis Fed (stlouisfed.org), click to edit the graph and choose the “Units” to be “Percentage Change from Year Ago” and then you could replicate the data (more precise in digits actually) from BEA.