We've been running an autonomous B2B outbound engine in production for 30 days. Today we open-sourced the entire thing.
What it does: Scrapes job boards for companies hiring roles your product or service can replace (the hiring signal = buying intent), verifies the decision maker's email via Hunter, writes a personalized cold email using any of 6 LLMs (Anthropic, OpenAI, Gemini, DeepSeek, Nemotron, Ollama), and sends it from your own email via SMTP.
Production results: 52.9% open rate on cold B2B email. 10/10 deliverability score on mail-tester.com. ~$0.03 per qualified lead. Total infrastructure cost: $19/day.
Why we open-sourced it: Every outbound tool we found on GitHub was a demo. They scrape a career page, generate an email, and stop. None verify emails. None actually send. None track costs. And none ship a deliverability guide. We hit 6 production failures in 30 days — runaway scrapers that burned $31 in two days, duplicate leads added 9x, zero cost visibility — and built fixes for all of them. The repo documents every failure and every fix.
What's included:
- 3 LLM adapters covering 6 providers
- SMTP default sender (no third-party platform needed)
- 3-layer dedup gate
- Rate-limited email verification with exponential backoff
- Per-run cost tracking with alerts
- Pre-built configs for 3 verticals (agency, SaaS, staffing)
- Complete 10/10 email deliverability guide (SPF/DKIM/DMARC)
- 46 automated tests
Free. MIT license.
getlemnos32
/
b2b-outbound-sniper
Autonomous B2B outbound that turns job board hiring signals into qualified pipeline. 6 LLMs. Your own email. Battle-tested in production.
B2B Outbound Sniper
Autonomous B2B outbound that turns job board hiring signals into qualified pipeline.
6 LLMs. Your own email. Battle-tested in production.
How It Works
If a company is posting a $70K job listing for a role your product or service can replace — that's a buyer. The Sniper finds them on job boards, verifies the decision maker's email, writes a personalized cold email using any LLM, and sends it from your email address. You wake up to replies.
┌─────────────────────────────────────────────┐
│ YOUR CONFIG.YAML │
│ │
│ LLM: anthropic | openai | gemini | │
│ deepseek | nemotron | ollama │
│ │
│ Scraping: apify │
│ Verification: hunter │
│ Sending: smtp (your email) | │
│ smartlead | instantly │
│ Vertical: agency | saas | staffing │
└──────────────────┬──────────────────────────┘
│
┌────────▼────────┐
│ SNIPER ENGINE │
│ │
│ 1. Scrape job │
│ boards │Built by Lemnos AI. We are operators first, developers second. If you'd rather have someone run it for you: getlemnos.ai
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