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.