Browser & data captureAgent skills

Holehe

megadose/holehe

Check if an email is registered on 120+ sites.

Repository
Stars
6.7k
Forks
900
Open issues
45
Language
Python
Licence
GPL-3.0
Created
2020-03-10
Last push
2026-08-14
Effort to adopt

Plug in

Install and use the same day. Little to no custom code.

01

What it actually does

Holehe is an OSINT (Open Source Intelligence) tool that takes an email address and checks if it is attached to an account on over 120 different websites (like Twitter, Instagram, Imgur, Github, etc.). It does this cleanly using the sites' 'forgot password' or account recovery mechanisms, meaning it does not alert the target that their email is being checked. When connected to an AI agent, it gives the agent instant visibility into the digital footprint of an email address.

02

Who it's for

  • 01

    Security teams verifying the digital footprint of their own employees for potential phishing risks

  • 02

    Sales teams trying to verify if an inbound lead's email is a real, active account

  • 03

    Fraud prevention analysts checking if a newly registered user has a legitimate online presence

OperationsSalesSaaSAgency
03

Where it earns its keep

  • Running a script to check if your company's corporate emails have been used to sign up for unauthorized shadow-IT services
  • Validating the authenticity of an anonymous whistleblower's email address
  • Enriching inbound sales leads by verifying they use professional platforms like GitHub or LinkedIn
04

Use it, or skip it

Reach for it when

  • You are doing authorized OSINT research or fraud prevention
  • You need to quickly validate if an email is a burner address or a real person

Skip it when

  • You are trying to dox people or violate privacy policies—use only on authorized targets
  • You need 100% guarantee; some sites frequently change their recovery endpoints, breaking the checks
05

10 automations

  1. 01Sales

    Inbound Lead Scorer

    When a lead fills out a form, an agent runs Holehe to verify the email exists on legitimate platforms, prioritizing the lead if it's a real person.

  2. 02Operations

    Shadow IT Detector

    Nightly script checks employee corporate emails against unauthorized SaaS platforms and alerts IT if accounts are found.

  3. 03Finance

    Fraudulent Account Blocker

    During sign-up, an agent checks the user's email. If it's not registered on any other internet site, it flags the account for manual review.

  4. 04Finance

    Automated KYC Enrichment

    Agent enriches KYC (Know Your Customer) profiles by summarizing the user's digital footprint across social platforms.

  5. 05Engineering

    Phishing Target Analyzer

    Agent analyzes which company emails have the largest public footprint to identify high-risk phishing targets.

  6. 06Sales

    Burner Email Rejector

    Agent automatically rejects free trial signups from emails that have zero footprint on major websites.

  7. 07Founders

    Recruitment Profile Builder

    Given an email, the agent finds the candidate's GitHub and StackOverflow profiles to summarize their coding history.

  8. 08Founders

    Security Incident Context

    When an unknown email emails the CEO, the agent instantly runs OSINT and replies in Slack with a risk assessment.

  9. 09Operations

    Data Breach Correlator

    Agent cross-references employee emails with known breach sites to enforce mandatory password resets.

  10. 10Marketing

    Customer Persona Extractor

    Agent determines if a B2B user is highly active on developer sites vs social media to route them to the right sales funnel.

Want one of these running by Friday?

LimeDock builds these as real workflows inside your stack — deployed to your cloud, wired into your Slack and CRM, with the code in your repo. You pay a build fee and your own API keys, nothing else.

Book a workflow call
07

Source

Repository stats were read from the GitHub API and reflect the last time we refreshed this entry. The editorial breakdown above is LimeDock’s own analysis — we are not affiliated with megadose.

https://github.com/megadose/holehe