Scheduled Instagram Auto-Liker with Phantombuster, GPT-4o & Cookie Rotation

Who’s it for

Social-media managers and brands that want to keep their Instagram
accounts active by automatically liking fresh posts under selected
hashtags—hands-free and rate-limited.

How it works / What it does

1. Schedule Trigger runs every 2 hours at a specified minute.
2. Select Cookie chooses a rotating Instagram session-cookie
   (time-slice logic).
3. Generate Random Hashtag (GPT-4o) outputs a realistic AI/BPA
   hashtag.
4. Instagram Hashtag Agent (Phantombuster) scrapes up to
   ENV_MAX_POSTS_PER_HASHTAG recent posts.
5. Get Random Post selects one; duplicate checker ensures it
   hasn’t been liked before (SharePoint CSV).
6. Builds instagram_posts_to_like.csv, uploads to SharePoint, then
   launches the Auto-like Agent which likes the post.
7. Post URL is appended to instagram_posts_already_liked.csv to avoid
   duplicates.
8. Wait nodes throttle launches to ~12 likes per profile daily.

How to set up

1. Add credentials: Phantombuster API, SharePoint OAuth2, OpenAI API
   key.
2. In SharePoint › “Phantombuster” folder create:
   • instagram_session_cookies.txt – one cookie per line.
   • instagram_posts_already_liked.csv with header postUrl.
3. Adjust Set ENV Variables to change max posts per scrape.
4. Activate the workflow; it will like one post every 2 hours.

Requirements

• n8n 1.33 +
• Phantombuster Growth plan (API access)
• OpenAI account
• Microsoft 365 SharePoint tenant

How to customize

• Target a different niche: edit hashtag prompt in Generate Random Hashtag.
• Like more posts: raise ENV_MAX_POSTS_PER_HASHTAG,
  numberOfPostsPerLaunch, or schedule frequency.
• Replace SharePoint with Drive/Dropbox by swapping storage nodes.