Home / Skills / cold-email-verifier
cold-email-verifier
Varnan-Tech/opendirectorySkill
Use when the user wants to verify cold emails, enrich a lead list, or autonomously guess email addresses from a CSV using ValidEmail.co or the open-source Reacher engine.
Why this score
This repo hosts 10 skills, so its 682 stars are split between them (about 68 each) for scoring.
Popularity score: 67/100 from public GitHub signals only. It shows how widely used and maintained this is, not how well it works. Not included yet: the fake-star check. The security scan is shown separately and doesn't change the score. How we rank
Security
Scanned Oct 20, 2026 at commit caac7cda5621, with Cisco's open-source skill-scanner.
What its code does:
- Reads environment variables and sends network requests with them API clients do this to send your key to the service. Check which service it talks to.scripts/email_verifier.py and 1 more
- Makes network requestsSKILL.md, scripts/email_verifier.py:22 and 2 more
- Uses dependencies without a pinned version A later version of a dependency could change what runs.requirements.txt:1 and 1 more
- Downloads content and runs it Whatever it downloads can change after we scanned it.scripts/email_verifier.py:114
Web addresses in its code:
- autocomplete.clearbit.comscripts/email_verifier.py:23
- validemail.coscripts/email_verifier.py:82
These are the sites named in the code, so it's where your data could go. It isn't a complete list: code can build addresses while it runs, and a few of these may be links rather than calls. Whatever you send also goes to the AI model you use.
A scan lists patterns in the code. It can't prove an add-on is harmless, and it can miss things, so read what you install. How we scan
Alternatives
Other makers' add-ons that do the same job, next to this one.
| Name | Score | Stars | Context | Updated |
|---|---|---|---|---|
| This onecold-email-verifier Varnan-Tech/opendirectory · Skill | 67 | ★ 682 | ≈48 always | 18d ago |
| cold-email coreyhaines31/marketingskills · Skill Same job: email & newsletters | 88 | ★ 56k | ≈153 always | 16d ago |
| cold-email-writer Paramchoudhary/ResumeSkills · Skill Same job: prospecting & leads | 63 | ★ 2.8k | ≈31 always | 5mo ago |
| cold-email-outreach hyperfx-ai/marketing-skills · Skill Same job: email & newsletters | 55 | ★ 106 | ≈124 always | 21d ago |
| cold-email-lemlist explorium-ai/gtm-skills · Skill Same job: email & newsletters | 60 | ★ 266 | ≈154 always | 24d ago |
| cold-outreach runxhq/runx · Skill Same job: email & newsletters | 58 | ★ 103 | ≈52 always | 16d ago |