warmbly
Warmbly automates AI‑generated cold‑outreach emails and runs an email‑warm‑up schedule so your messages land in the inbox, not the spam folder.
- •You need to send personalized cold‑email sequences at scale without writing each line by hand.
- •Your outbound campaign is being blocked by spam filters because the sending address is new or inactive.
- •You want a self‑hosted, programmable alternative to paid cold‑outreach SaaS.
docker compose exec app warmbly outreach send --campaign "SeedRound" --to "alice@example.com" --variables "FirstName=Alice"
Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
Works after you add credentials — the setup agent will ask you for them.
mkdir -p ~/.claude/skills/warmbly && curl -fsSL https://workflowstacks.com/api/skills/warmbly/claude-skill -o ~/.claude/skills/warmbly/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.
Works after you add credentials — the setup agent will ask you for them.
mkdir -p ~/.claude/skills/warmbly && curl -fsSL https://workflowstacks.com/api/skills/warmbly/claude-skill -o ~/.claude/skills/warmbly/SKILL.mdOpens the app with this repo with the prompt ready to go — no copy-paste needed.
Are you the creator of this tool? and earn 85% of every sale.
Show it off in your README:
[](https://workflowstacks.com/skills/warmbly?utm_source=github&utm_medium=badge)The five fastest-growing open-source AI skills, ranked by GitHub star growth. One email a week, unsubscribe anytime.
Do this with a working workflow
Pages we wrote and tested that put a skill like this to work — importable n8n templates, outcome guides and Claude Desktop configs.
Cold Email Personalizer
Turn a list of prospects into genuinely specific, personalized cold-email openers — each scored 1-5 for specificity so you can kill the generic ones.
Outcome guidePersonalize your cold emails at scale
You keep prospects in a Google Sheet with a note about each. The workflow writes a specific one-line opener per prospect and scores it 1–5, so you can send the strong ones and fix the weak ones.
Free n8n templateAbandoned Cart Win-Back
Draft a personalized, non-pushy win-back email for every abandoned cart — referencing the exact product left behind. You approve before sending.
Lead Finder
Turn a business type + city into a spreadsheet of real leads.
Includes the tested workflow and a written setup playbook. Needs: Google Places API key (free tier).
Related skills
More sales tools founders pair with this one.