---
title: "Past releases of the same indicator"
method: GET
path: "/rest/api/v1/projects/{projectId}/economicCalendar/{eventId}/history"
tags: ["News API"]
---

# Past releases of the same indicator

`GET /rest/api/v1/projects/{projectId}/economicCalendar/{eventId}/history`

## Request

- Base URL: `https://api.metacopier.io`
- URL: `https://api.metacopier.io/rest/api/v1/projects/{projectId}/economicCalendar/{eventId}/history`
- Auth: API key in header `X-API-KEY`
- TypeScript: <https://skmtc.dev/metacopier/apis/metacopier-api/docs/rest/api/v1/projects/:projectId/economicCalendar/:eventId/history/get.ts> (a function with typed inputs; its response is checked against the schema)

Actual against forecast for the last releases of this indicator, oldest first so the list can be charted directly. The sigma of each row is measured against the releases that came before it, and it stays null while the history is too thin to standardise against.

## Path parameters

- `projectId` string, uuid, required
- `eventId` string, required

## Query parameters

- `limit` integer

## Response `200`

OK

- IndicatorHistoryDTO
  - `countryCode` string
  - `currencyCode` string
  - `indicatorKey` string
  - `inverted` boolean: A higher number is bad news for this currency, so the surprise sign is flipped for the index
  - `releases` IndicatorReleaseDTO[]: Oldest first, so the list can be charted directly
    - `actual` string
    - `actualRaw` number, double
    - `eventId` string
    - `eventTimeUtc` string, date-time
    - `forecast` string
    - `forecastRaw` number, double
    - `period` string
    - `previous` string
    - `previousRaw` number, double
    - `surprise` number, double: actual minus forecast in the unit of the indicator
    - `surpriseSigma` number, double: Surprise in standard deviations of this indicator's own history, null when the history is too thin
  - `samples` integer: How many past releases carry both an actual and a forecast
  - `sigmaReliable` boolean: False when the history is too thin for a standard deviation, in which case no sigma is shown
  - `title` string
  - `unit` string

## Changes

- **2026-08-30** `69d2d39c695e`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/metacopier/apis/metacopier-api/changes/rest/api/v1/projects/:projectId/economicCalendar/:eventId/history/get.md)

---

[API](https://skmtc.dev/metacopier/apis/metacopier-api.md) - [All operations](https://skmtc.dev/metacopier/apis/metacopier-api/llms.txt) - [OpenAPI document](https://skmtc.dev/metacopier/apis/metacopier-api/revisions/2ac6d7461345?raw)