Changes feed

GET /v1/changes

Dates added, removed or modified by each release.

modified includes a date becoming verified. Page with cursor = the previous response's next_cursor.

Parameters

Name	In	Type	Default	Description
since	query	string	—	A date (YYYY-MM-DD): releases published on or after it. Or a release id: releases after it. Default: the last 30 days.
calendars	query	string	—	Comma-separated calendar ids, at most 10, e.g. USD,AUD or XNYS,JP:bank
limit	query	string	100
cursor	query	string	—

Example

curl "https://api.financecalendarapi.com/v1/changes?since=2026-01-01&limit=3"

Response, captured from the live API when this page was built:

{
  "data_release": {
    "id": "20261016T064343Z",
    "library_version": "0.106",
    "generated_at": "2026-10-16T06:45:33+00:00"
  },
  "changes": [
    {
      "release_id": "20261014T120959Z",
      "published_at": "2026-10-14T12:15:45Z",
      "calendar_id": "AE",
      "date": "2025-01-01",
      "kind": "holiday",
      "change_type": "modified",
      "before": {
        "date": "2025-01-01",
        "kind": "holiday",
        "names": {
          "en": "New Year's Day",
          "ar": "رأس السنة الميلادية",
          "th": "วันขึ้นปีใหม่",
          "ur_PK": "نئے سال کا دن"
        },
        "status": "confirmed",
        "observed": false,
        "close_time": null,
        "origin": "library",
        "coverage": "library",
        "sources": []
      },
      "after": {
        "date": "2025-01-01",
        "kind": "holiday",
        "names": {
          "en": "New Year's Day",
          "ar": "رأس السنة الميلادية",
          "th": "วันขึ้นปีใหม่",
          "ur_PK": "نئے سال کا دن"
        },
        "status": "confirmed",
        "observed": false,
        "close_time": null,
        "origin": "library",
        "coverage": "verified",
        "sources": [
          "dfm-eid-al-adha-2025",
          "fahr-eid-al-fitr-2025",
          "fahr-hijri-new-year-2025",
          "fahr-national-day-2025",
          "fahr-new-year-2025",
          "fahr-prophets-birthday-2025",
          "mohre-eid-al-adha-2025",
          "u-ae-public-holidays"
        ]
      }
    },
    {
      "release_id": "20261014T120959Z",
      "published_at": "2026-10-14T12:15:45Z",
      "calendar_id": "AE",
  …

Errors use problem details. Every response says which data release answered it, in data_release and the x-data-release header.