---
title: "Monthly US Consumer Price Index history for one series, newest first, with month-over-month and year-over-year percent changes. Covers headline and core CPI plus food, energy, shelter, and services since 1947."
method: GET
path: "/financial-datasets/macro/inflation"
tags: ["Financial Datasets"]
---

# Monthly US Consumer Price Index history for one series, newest first, with month-over-month and year-over-year percent changes. Covers headline and core CPI plus food, energy, shelter, and services since 1947.

`GET /financial-datasets/macro/inflation`

## Request

- Base URL: `https://api.orthogonal.com/mpp`
- URL: `https://api.orthogonal.com/mpp/financial-datasets/macro/inflation`
- Auth: none declared
- TypeScript: <https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/docs/financial-datasets/macro/inflation/get.ts> (a function with typed inputs; its response is checked against the schema)

## Query parameters

- `series` string, required
- `start_date` string
- `end_date` string
- `cursor` string

## Response `200`

Successful response

## Other responses

- `402`: Payment Required (x402 / MPP / np)

## Changes

- **2026-11-08** `857e915717f4`: 1 breaking, 3 info
  - added the new required `query` request parameter `series`
  - added the new optional `query` request parameter `cursor`
  - added the new optional `query` request parameter `end_date`
  - added the new optional `query` request parameter `start_date`
- **2026-09-26** `4d5d2c85d24e`: 1 info
  - endpoint added

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

---

[API](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace.md) - [All operations](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/llms.txt) - [OpenAPI document](https://skmtc.dev/orthogonal/apis/orthogonal-api-marketplace/revisions/fc2e1d26c8eb?raw)