US Consumer Price Index and Inflation (CPI)

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API Access

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Dataset Files

Each file has a stable URL (r-link) that you can use directly in scripts, apps, or AI agents. These URLs are permanent and safe to hardcode.

/core/cpi-us/

├ README.md

https://datahub.io/core/cpi-us/_r/-/README.md

├ UPDATE_SCRIPT_MAINTENANCE_REPORT.md

https://datahub.io/core/cpi-us/_r/-/UPDATE_SCRIPT_MAINTENANCE_REPORT.md

├ archive/cpiai_archived.csv

https://datahub.io/core/cpi-us/_r/-/archive/cpiai_archived.csv

├ data/cpiai.csv

https://datahub.io/core/cpi-us/_r/-/data/cpiai.csv

└ datapackage.json

https://datahub.io/core/cpi-us/_r/-/datapackage.json

Key Files

Start with these files — they give you everything you need to understand and access the dataset.

datapackage.json— metadata & schema

https://datahub.io/core/cpi-us/_r/-/datapackage.json

README.md— documentation

https://datahub.io/core/cpi-us/_r/-/README.md

Typical Usage

1. Fetch datapackage.json to inspect schema and resources
2. Download data resources listed in datapackage.json
3. Read README.md for full context

Data Views

Monthly Consumer Price Inflation

Monthly Consumer Price Index

Data Files

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cpiai

Field	Type	Format	Description
Date	date	default	Date of the observation in YYYY-MM-DD format, always the first day of the month.
Index	number		Monthly Consumer Price Index. Values are U.S. city averages for all items and 1982-84=100.
Inflation	number		Monthly Consumer Price Inflation. Values are for U.S. city averages for all items.

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About

Monthly CPI-U index values and derived month-on-month inflation rates for the US city average (all items), from January 1913 to the most recent available month. The first row (1913-01-01) has an empty Inflation value because percent-change calculation requires a prior month.
Last updated: 19 May 2026
Total rows: ...
Format: CSV
File size: 29.3 kB
Source: BLS Public API v2
License: Open Data Commons Public Domain Dedication and License v1.0

About this dataset

Consumer Price Index for All Urban Consumers (CPI-U) from U.S. Department Of Labor Bureau of Labor Statistics. This is a monthly time series from January 1913. Values are U.S. city averages for all items and 1982-84=100. Note that there are many price indices and this is only one of them (albeit the most standard and with the longest set of data).

Preparation

Run the following script to get the final data at data/ folder:

# Install libraries
pip install -r scripts/requirements.txt

# Run the script
python scripts/process.py

Data

Data is sourced from bls.gov and combined with previous data from 2014 which is now outdated and requires an API for this case.

Data notes

All Date values are formatted as YYYY-MM-DD and are always the first day of the month (e.g. 1913-01-01 represents January 1913).
The Inflation field is empty for the first row (1913-01-01) because month-on-month percent change requires a prior month value.

Automation

Up-to-date (auto-updates every month) cpi-us dataset could be found on the datahub.io: https://datahub.io/core/cpi-us Automated using Github Actions

License

This Data Package is made available under the Public Domain Dedication and License v1.0 whose full text can be found at: http://www.opendatacommons.org/licenses/pddl/1.0/