---
title: "Each day's additions, removals and amended listings on the six US export lists (free)"
method: GET
path: "/changes"
---

# Each day's additions, removals and amended listings on the six US export lists (free)

`GET /changes`

## Request

- Base URL: `https://api.stratumapis.com/v1/export-screening`
- URL: `https://api.stratumapis.com/v1/export-screening/changes`
- Auth: API key in header `X-Stratum-Key`

What changed on each US export-control list, day by day, from the daily 04:00 UTC refresh. A listing whose reference changed but which is otherwise the same counts once, as amended; a step too large to be one day of listings (a change of source or file format) is withheld with its counts. Days with no change are left out. Free: does not count as a check.

## Query parameters

- `days` integer
- `list` string

## Response `200`

The change history

- object
  - `updatedAt` string, date-time: When the last refresh was compared
  - `from` string, date: First day covered
  - `lists` object[]
    - `slug` 'us_el' | 'us_dpl' | 'us_dtc' | 'us_uvl' | 'us_isn' | 'us_meu': `us_el` US Entity List, `us_dpl` Denied Persons List, `us_uvl` Unverified List, `us_meu` Military End User List (all BIS); `us_dtc` ITAR Debarred List, `us_isn` Nonproliferation Sanctions (both State Department)
    - `name` string
    - `url` string
    - `entryCount` integer
    - `lastRefreshed` string, date-time: When we last fetched the list
    - `lastChanged` string, date: Last day with a change on this list
  - `days` object[]
    - `date` string, date
    - `lists` object: Keyed by list slug; only lists that changed that day

## Other responses

- `400`: Bad days or list value (`invalid_days`, `invalid_list`)
- `503`: The change history starts with the next daily refresh (`changes_not_ready`)

---

[API](https://skmtc.dev/stratumapis/apis/export-controls-screening-api.md) · [All operations](https://skmtc.dev/stratumapis/apis/export-controls-screening-api/llms.txt) · [OpenAPI document](https://skmtc.dev/stratumapis/apis/export-controls-screening-api/revisions/19984f668877?raw)