I

Instagram API

REST discovered

Details Spec supplied by APIs.guru
URL
https://api.instagram.com/v1
Spec
https://api.apis.guru/v2/specs/instagram.com/1.0.0/swagger.json
Docs
https://developers.facebook.com/documentation/instagram-platform/reference
Authentication
Instagram user/business access token + Instagram user/business access token ?access_token=<credential> discovered
Instagram user/business access token oauth2 Set up OAuth ↗

Create an app in Meta for Developers, add the Instagram product your integration needs, then follow the Instagram authorization flow documented under Instagram Platform. The current docs split setup between Instagram API with Instagram Login and Instagram API with Facebook Login; both ultimately issue an access token for calling the API.

Instagram user/business access token + Instagram user/business access token discovered