---
title: "Get accumulated index for the last 12 months"
method: GET
path: "/economic-indexes/accumulated-last-12-months"
tags: ["Economic Indexes"]
---

# Get accumulated index for the last 12 months

`GET /economic-indexes/accumulated-last-12-months`

## Request

- Base URL: `https://api.kolek.com.br` (the document declares no server; this is the origin it was published from)
- URL: `https://api.kolek.com.br/economic-indexes/accumulated-last-12-months`
- Auth: HTTP bearer

Returns the accumulated value of a specific economic index for the last 12 complete months

## Query parameters

- `indexType` 'IGP_M' | 'IPCA' | 'INPC' | 'INCC', required

## Response `200`

Accumulated index data for the last 12 months

- AccumulatedIndexResponseDto
  - `indexType` 'IGP_M' | 'IPCA' | 'INPC' | 'INCC', required: Type of economic index
  - `indexName` string, required: Index display name
  - `accumulatedValue` number, required: Accumulated value for the last 12 months (percentage)
  - `period` string, required: Period description
  - `periodStartDate` string, required: Reference period start date
  - `periodEndDate` string, required: Reference period end date
  - `lastUpdated` string, required: Last update timestamp

## Other responses

- `400`: Invalid index type or no data available
- `401`: Unauthorized
- `500`: Internal server error

---

[API](https://skmtc.dev/kolek/apis/kolek-api.md) - [All operations](https://skmtc.dev/kolek/apis/kolek-api/llms.txt) - [OpenAPI document](https://skmtc.dev/kolek/apis/kolek-api/revisions/b10a60bfcfa4?raw)