n8n B2B Lead Gen Workflow: MrScraper + Gemini + Sheets + Slack

Turn niche leads into a Slack-ready pipeline—automatically

This n8n B2B Lead Gen Workflow uses MrScraper and Google Gemini to discover companies from Google SERPs, score them against your ICP, generate personalized icebreakers, save results to Google Sheets, and post a ranked top-10 summary to Slack.

What this workflow does

• Collects your targeting inputs (niche, location, ICP details, score threshold, and run limits) via an n8n form trigger.
• Generates search query variations using Google Gemini, then deduplicates and caps the list of queries.
• Scrapes prospect websites with MrScraper by running Google SERP searches for each query, filtering out directories/social sites, and selecting one prospect site per domain (up to your maximum company count).
• Extracts website details with MrScraper (business description, services, and any published contact details like email/phone).
• Scores fit to your ICP using Google Gemini, lists buying signals, and creates an outreach icebreaker.
• Qualifies vs disqualifies and appends each lead to the appropriate Google Sheets tab based on score and the presence of email/phone.
• Publishes a ranked summary of the top-10 qualified leads to a Slack channel after processing completes.

Use cases

• SaaS operators validating whether a target niche and location produces outreach-ready companies.
• Automation engineers building a repeatable lead-gen pipeline with SERP discovery, scoring, and CRM-adjacent outputs.
• Founder-led outbound generating personalized icebreakers and a prioritized daily shortlist in Slack.

Technical details (integrations + nodes)

• Community node: n8n-nodes-mrscraper (requires a MrScraper API credential)
• Google Gemini (PaLM) API for query generation and lead scoring (requires credential)
• Google Sheets OAuth to append leads into qualified/disqualified tabs
• Slack to post the top-10 ranked summary
• Workflow logic nodes: if, code, merge, slack, sticky note, form trigger

Get consistent, ICP-aligned B2B lead generation—from Google discovery to scored leads, sheets records, and Slack-ready outreach context.