ZeroGTM is an open-source AI SDR agent that replaces your entire sales stack. It runs a 5-step enrichment pipeline — Google Maps scraping, contact mining, AI-powered decision maker identification, email verification, and data sanitization. How to improve email deliverability for cold outreach? Better deliverability starts before you hit send — ZeroGTM pre-verifies every email address and ensures you're contacting the actual decision maker. MIT licensed, self-hostable with BYOK model. Free tier with 100 credits/month.