Mosint — Email OSINT ToolMosint Guide - step-by-step reference to install and use Mosint, a fast Go-based automated email OSINT tool. Educational purposes only, online free.FAQ

What is Mosint?

Mosint is a fast, automated email OSINT tool written in Go. Given an email address, it quickly gathers and consolidates publicly available information about it from multiple sources.

Is Mosint illegal?

The tool is open source and legal to use for OSINT research. It only queries publicly available sources. Using it to harass, stalk or target someone you have no legitimate reason to investigate may break laws and platform terms. Use it responsibly and only for authorized research.

What do I need to install it?

You need Go installed. Then run: go install -v github.com/alpkeskin/mosint/v3/cmd/mosint@latest. Make sure your Go bin directory is on your PATH.

How do I run a scan?

Simply pass an email address: mosint example@email.com. It automatically runs the enabled checks and prints the results in the terminal.

What information can it find?

It can validate the email address and surface related information such as linked accounts, associated domains and breach data, depending on the sources and API keys you have configured.

Why are some checks empty or skipped?

Many sources require free API keys that you must add to the .env configuration file. Without a key, that source is skipped. Set the keys you have and re-run.

Is it lightweight?

Yes. It is optimized to be fast and easy on system resources, and it runs entirely from the command line.

What is Mosint good for?

It is a great starting point for email-based reconnaissance in authorized OSINT, social-engineering-awareness and red-team engagements.

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