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Inflation (Snapshot)

Overview

The Inflation Snapshot API returns the most recent month of every inflation series we track, fourteen rows (twelve CPI, two PCE), each with the month-over-month and year-over-year percent changes computed for you. Pass series to get one row. We source the data directly from authoritative government sources. The snapshot refreshes within minutes of each release: CPI in the middle of the month, PCE about two weeks later, so for part of each month the two families show different months. To receive each new print without polling, subscribe to the inflation.created webhook. To get started, please create an account and grab your API key at financialdatasets.ai. You will use the API key to authenticate your API requests.

Coverage

Series

CPI: six concepts, each seasonally adjusted (_sa) and not seasonally adjusted (_nsa): cpi_all, cpi_core, cpi_food, cpi_energy, cpi_shelter, cpi_services_less_energy. PCE: pce_all_sa and pce_core_sa, seasonally adjusted only. The full list is one free GET request away: https://api.financialdatasets.ai/macro/inflation/series/

Reading the fields

  • date is the reference month as its first day, not the release date.
  • value is the published index level (1982-84 = 100 for CPI, 2017 = 100 for PCE).
  • change_1m_pct and change_12m_pct are percent changes from the prior month and from a year earlier, rounded to one decimal. The headline “inflation rate” is change_12m_pct of cpi_all_nsa; the Fed’s preferred measure is change_12m_pct of pce_core_sa.
  • A change is null when the comparison month was not published (for example, October 2025).

Getting Started

There are only 2 steps for making a successful API call:
  1. Add your API key to the header of the request as X-API-KEY.
  2. Execute the API request. Add series to get one series instead of all fourteen.

Example

Inflation Snapshot

Example Response

The live response has one row per series, fourteen in total: the twelve CPI series on their newest month, then the two PCE series on theirs.

Authorizations

X-API-KEY
string
header
required

API key for authentication.

Query Parameters

series
string

Optional series id to return one row instead of all fourteen, e.g. cpi_core_sa or pce_core_sa.

Response

Inflation snapshot response

inflation
object[]