---
title: "Inflation series"
method: GET
path: "/macro/inflation/series"
tags: ["Macroeconomics"]
---

# Inflation series

`GET /macro/inflation/series`

## Request

- Base URL: `https://api.financialdatasets.ai`
- URL: `https://api.financialdatasets.ai/macro/inflation/series`
- Auth: none required

The CPI series ids and what they are, with each series' first available month. Free; no API key required.

## Response `200`

Inflation series catalog

- InflationSeriesResponse
  - `resource` string: Always inflation.
  - `series` InflationSeries[]
    - `series_id` string: The series id to pass as the series parameter.
    - `title` string: What the series measures.
    - `seasonal_adjustment` string: sa (seasonally adjusted) or nsa (not seasonally adjusted).
    - `units` string: Units of value: Index 1982-84=100 for CPI series, Index 2017=100 for PCE series.
    - `frequency` string: monthly.
    - `first_date` string, nullable: The first available month in YYYY-MM-DD format.

## Changes

- **2026-11-03** `5872e134b56c`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/financialdatasets/apis/financial-datasets-api/changes/macro/inflation/series/get.md)

---

[API](https://skmtc.dev/financialdatasets/apis/financial-datasets-api.md) - [All operations](https://skmtc.dev/financialdatasets/apis/financial-datasets-api/llms.txt) - [OpenAPI document](https://skmtc.dev/financialdatasets/apis/financial-datasets-api/revisions/42ba45d24472?raw)