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LEADBASE AI

A sales tool that finds companies worth pitching to and ranks them by how well they fit your business, an AI-powered B2B lead-intelligence CRM for the Finnish market. Claude learns an ideal customer profile from your existing clients, translates it into search filters for Apollo.io (a live company and contact database), and scores every prospect against an explicit rubric, saving each lead with fit signals, concerns and a suggested outreach angle.

Next.js 16SupabaseClaude APITailwind CSS
GitHub
Solo project · Full-stack & AI · 2026
95
HIGH

Olli Karejoki

qualified
Full-Stack DevelopmentFinland

Fast-progressing full-stack developer from Finland. Builds production apps end-to-end, and picks up new stacks fast.

01 / 06

Project Architecture

Leadbase system architecture diagram

Technologies used

  • Next.js
  • React
  • TypeScript
  • Tailwind CSS
  • Supabase
  • Postgres
  • Deno Edge Functions
  • Claude API
  • Apollo.io

01 · Set up your workspace

Fill in your company profile (what you sell, who you sell to) and add a handful of your existing best customers.

Leadbase company profile setup: what you sell and who you sell to
Leadbase: adding a handful of your existing best customers

02 · AI builds your Ideal Customer Profile

Claude studies your customer list and writes a profile of who to target: industries, company size, positive buying signals and red flags to avoid.

Leadbase generated ideal customer profile with target industries, size range, buying signals and anti-signals

03 · Find and score prospects

Search a live company database (Apollo.io): type a company name, or let the app auto-build the search straight from your ICP. Then, on demand, Claude compares each prospect against your ICP and returns a 0–100 fit score, a high/medium/low rating and specific reasons for and against.

Leadbase prospect search against the Apollo.io company database, auto-built from the ICP

04 · Work your ranked list

Scored leads land on a dashboard, sorted best-fit first, each with a plain-language summary and a tailored outreach angle to open the conversation.

Leadbase: a single prospect scored against the ICP with a 0–100 fit score and reasons for and against

Get in touch

Lets build something.

koodikommando@gmail.com→
GitHub