An AI SDR (Sales Development Representative) is an autonomous agent that runs outbound prospecting end to end: it finds the right companies, identifies the decision-maker, scores fit, writes personalized messages, and sequences outreach across channels. Lead Scorer’s AI SDR does all of this from real, official data, drafts with a versioned outreach playbook, sanitizes placeholders and email HTML, then waits for you to review and launch. It’s built and priced for one person: solo founders and indie hackers, from €99/month rather than the $300–$1,000/month of enterprise AI SDRs.