# NeutrOSINT (otlite)

Check if an email address or username exists on ProtonMail.

- Takes: Email, Username
- Install: `otlite install neutrosint`, into its own virtualenv
- Pinned: [github.com/Kr0wZ/NeutrOSINT at a51a133](https://github.com/Kr0wZ/NeutrOSINT/tree/a51a133444c366ea3a60a8c400a3624625d79e6d)
- Command: `neutrosint`
- Python: any otlite runs on (3.10 or newer)
- Verified: 29 Sept 2026, version main on Ubuntu 26.04 LTS, Python 3.14.4
- Licence: MIT
- Source: https://github.com/Kr0wZ/NeutrOSINT

otlite is the no-Docker edition of OTInstaller for Linux and macOS: [install it](https://otinstaller.com/otlite) with `curl -fsSL https://get.otinstaller.com/otlite | sh`.

## Run it

| Input | otlite command | NeutrOSINT receives |
| --- | --- | --- |
| Email | `otlite run neutrosint -- e:ada@example.com` | `neutrosint --email ada@example.com` |

Arguments after `--` that aren't typed inputs go to the tool unchanged.

## What a run leaves

- `results/neutrosint/ada@example.com/<time>_neutrosint_ada@example.com_<run id>.txt`
- `results/neutrosint/ada@example.com/<time>_neutrosint_ada@example.com_<run id>.meta.json`
- `results/neutrosint/ada@example.com/<time>_neutrosint_ada@example.com_<run id>.envelope.json`

The envelope is the same shape for every tool: the tool and version, the input, timing, exit code and status, the emails, domains, IP addresses and URLs found in the output, and the output file's path, hash and size. `otlite results --tool neutrosint` lists saved runs, `otlite extract neutrosint` pulls out indicators and `otlite diff neutrosint ada@example.com` compares the two latest runs.

## With other tools

`otlite run --all e:ada@example.com` and `otlite auto ada@example.com` run it with every other installed tool that takes the same input.

## Related tools

- [Spiderfoot](https://otinstaller.com/otlite/tools/spiderfoot.md): SpiderFoot automates OSINT for threat intelligence and mapping your attack surface
- [Blackbird](https://otinstaller.com/otlite/tools/blackbird.md): OSINT tool to search for accounts by username and email across social networks
- [User Scanner](https://otinstaller.com/otlite/tools/user-scanner.md): (2-in-1) Email & Username OSINT suite featuring native MCP support for deep data extraction just from a single Email/Username
- [Socialscan](https://otinstaller.com/otlite/tools/socialscan.md): Python library for accurately querying username and email usage on online platforms
- [Fsociety](https://otinstaller.com/otlite/tools/fsociety.md): A Modular Penetration Testing Framework
- [Openosint](https://otinstaller.com/otlite/tools/openosint.md): AI-powered OSINT agent with interactive REPL, MCP server, and direct CLI modes

[All 47 otlite tools](https://otinstaller.com/otlite/tools) · [otlite docs](https://otinstaller.com/docs/otlite.md)