n8n Reddit Lead Qualifier: OpenAI Buying Intent + Gmail Digest

Turn Reddit buying intent into a daily Gmail lead digest—automatically

This n8n workflow scans Reddit every morning, uses OpenAI to identify posts that signal buying intent, and sends you an HTML Gmail digest containing only the newly qualified leads—so you can act fast without manually searching.

What this workflow does

• Runs on a daily schedule (Schedule Trigger) to keep your pipeline current.
• Searches Reddit via API Direct (newest first) using your configured query.
• Deduplicates across runs by filtering out posts already processed in earlier active runs using persisted workflow memory.
• Classifies each remaining post with an OpenAI chat model to determine whether it matches your buying-intent criteria based on your product description.
• Builds an HTML email digest with links and key metadata for only the newly found qualified posts.
• Sends the digest via Gmail to your chosen recipient.

Use cases

• SaaS operators tracking prospects discussing tools they need right now (e.g., “looking for” CRM or sales automation).
• Automation engineers staying on top of communities like Reddit for leads relevant to n8n workflows and integrations.
• Product marketing or founders monitoring buyer language to refine positioning and outreach.

Technical details

• Schedule Trigger for daily runs.
• API Direct (n8n-nodes-apidirectap i direct) to query Reddit using boolean search syntax (e.g., "looking for" (crm OR "sales tool")).
• OpenAI chat model for buying-intent classification using a category description you can edit to tighten/loosen results.
• Persisted workflow memory to avoid processing duplicates across active runs.
• Gmail node to send the HTML digest.
• Support nodes: set, code, and sticky note.

Setup requirements

• An API Direct API key
• An OpenAI API key for the chat model
• A Gmail account with OAuth2 enabled

Customization: update the Reddit search query, your product description for classification, and the digest recipient email. You can also duplicate the search with a second phrase and merge results.