Who is this for Space Enthusiasts & Music Lovers : Discover new music paired with stunning cosmic visuals. Community Managers : specific Slack channels with engaging, creative daily content. n8n Learners : Learn how to chain Image Analysis (Vision), Logic, and API integrations (Spotify/Slack). How it works Schedule : The workflow runs every night at 10 PM. Mood Logic : It checks the day of the week to adjust the energy level (e.g., higher energy for Friday nights, calmer vibes for Mondays). Visual Analysis : OpenAI (GPT-4o) analyzes the NASA APOD image to determine its color palette, mood, and subject matter, converting these into musical parameters (Valence, Energy). Curation : Spotify searches for a track that matches these specific parameters. Creative Writing : OpenAI generates a short poem or caption linking the image to the song. Delivery : The image, track link, and poem are posted to Slack , and the track is automatically saved to a designated Spotify Playlist . Requirements NASA API Key (Free) OpenAI API Key (Must have access to GPT-4o model) Spotify Developer Credentials (Client ID and Client Secret) Slack Workspace and Bot Token How to set up Set up your credentials for NASA, OpenAI, Spotify, and Slack in n8n. Create a specific Playlist in Spotify and copy its Playlist ID . Copy the Channel ID from the Slack channel where you want to post. Paste these IDs into the respective nodes (marked with <__PLACEHOLDER__> ) or use the Set Fields node to manage them globally.