Prototype · Preview: every server in the official registry, synced every 30 minutes. Reviews and accounts come in a later step.
PopNx MCPMCP servers for people who use AI · explained in plain words

OSINT.SX

by osintsxversion 0.1.3i★ –iRuns on your computer
Registry nameio.github.osintsx/osintsx-mcp

Install

Overview

Description from the maker (original English)

Search an email, phone, username or name across every OSINT.SX source, plus account history tools.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

  • Connection: Runs on your computer
  • Transport: stdio
  • Category: Chat & email
  • You need to fill in: OSINTSX_API_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

  • Basic checks: 1 of 1 passed
  • Runs on your computer with your user’s permissions (files, network, apps).
  • You fill in yourself: OSINTSX_API_KEY

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

  • npmNode.js installed (for the npx command)

Which app do you use?

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "osintsx": {
      "command": "npx",
      "args": [
        "-y",
        "osintsx-mcp"
      ],
      "env": {
        "OSINTSX_API_KEY": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add osintsx --env OSINTSX_API_KEY=your-value -- npx -y osintsx-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "osintsx": {
      "command": "npx",
      "args": [
        "-y",
        "osintsx-mcp"
      ],
      "env": {
        "OSINTSX_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "osintsx": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "osintsx-mcp"
      ],
      "env": {
        "OSINTSX_API_KEY": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

  • OSINTSX_API_KEY secret required env
    Your OSINT.SX API key, from https://osint.sx/keys

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 6, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified with the GitHub account osintsx, which owns the repo

  • … Not checked yet

    Still maintained

    We have not read this repo from GitHub yet

  • … Not checked yet

    Has a licence

    We have not read this repo from GitHub yet

  • – Not applicable

    Endpoint responds

    This one runs on your computer; there is no internet endpoint

  • – Not applicable

    Sign-in with OAuth

    Runs on your computer and uses local settings instead

  • … Not checked yet

    No hidden instructions in tool descriptions

    Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Chat & emaili

  • More stars than 0% of the other 1762 servers in this category
  • Published to the registry more recently than 79% of the other 1762 servers in this category
  • Basic checks equal to or better than 100% of the other 1762 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is OSINT.SX safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: OSINTSX_API_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (0.1.3) reached the registry 6 days ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Vexa, emailmd, MCP WhatsApp Cloud

Alternatives

Servers in the same category from other makers, sorted by stars.

Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

Vexa

by Vexa-ai

Meeting bot and transcripts for Google Meet, Teams and Zoom. Live or after, speakers labelled.

Runs in the cloud★ 2,949Apache-2.0Updated 2 months ago
Install

emailmd

by anypost

Render markdown into email-safe HTML, lint drafts for deliverability problems, and preview emails.

Computer or cloud★ 1,385MITUpdated 30 days ago
Install

MCP server for WhatsApp Cloud API (Meta) — messages, media, and templates via Graph API

Runs on your computer★ 277MITUpdated 5 months ago
Install

README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

osintsx-mcp

An MCP server for the OSINT.SX API.

It lets an AI assistant such as Claude, Cursor or VS Code run OSINT.SX searches for you. It can check an email, phone number, username or name against every source at once, or use one of the single-platform tools.

It runs on your own API key. Each search costs what it costs on the site: 1 credit. A search that finds nothing because most sources failed gives the credit back. Tool searches cost nothing when they find nothing.

Setup

  1. Make an API key at https://osint.sx/keys.
  2. Add the server to your MCP client with that key.

Claude Desktop, Cursor and most clients (claude_desktop_config.json, .cursor/mcp.json):

{

"mcpServers": { "osintsx": { "command": "npx", "args": ["-y", "osintsx-mcp"], "env": { "OSINTSX_API_KEY": "YOUR_API_KEY" } } } }

Claude Code:

claude mcp add osintsx --env OSINTSX_API_KEY=YOUR_API_KEY -- npx -y osintsx-mcp

Node.js 20.3 or newer is required.

Tools

ToolWhat it does
searchChecks an email, phone number (+E.164), username or full name against every source, and returns each site where it's registered with the details that site shows.
google_account_lookupFinds Google accounts and Gaia IDs by email, name or domain, or looks one up by Gaia ID.
microsoft_account_lookupFinds Microsoft accounts by email, name or domain, or looks one up by CID.
epic_games_lookupFinds Epic Games accounts by display name, account ID, or the username on a linked platform.
twitter_historyLooks up an X profile's archived history: earlier usernames, names, bios, locations and pictures.
steam_historyLooks up a Steam profile's archived history: earlier names, custom URLs and avatars, and other accounts that held the same custom URL.
instagram_share_traceFinds the account that shared an Instagram link copied from the app.
tiktok_share_traceFinds the account that shared a TikTok short link copied from the app.

A call waits up to 50 seconds by default, then returns whatever has come in, and the result says it was cut short. For search, the sources that hadn't answered are cancelled. A single-platform tool keeps running on OSINT.SX after the cut-off, so its credit may still be used. 50 seconds keeps the call under the 60-second timeout many MCP clients use, and in testing almost every source answered within that time.

If your client allows longer calls, set max_wait_seconds (up to 600). Clients that support progress notifications show progress while a search runs.

By default, search leaves out sources that may notify the person. Set include_alerting_sources to include them.

Replies are kept under about 48 KB, so they fit what MCP clients accept. If there are more results than that, the reply says how many were left out. The Google, Microsoft, Epic and share-trace tools return each result's main fields; set include_raw to get everything the source sent.

Settings

Variable
OSINTSX_API_KEYRequired. Your API key.
OSINTSX_API_URLOptional. Defaults to https://api.osint.sx.

Use responsibly

Only search for people and accounts you have a lawful reason to look into. See the terms.

API reference: https://osint.sx/api

Ask PopNx