Aethyn Browser MCP

Name: Aethyn Browser MCP
Author: aethynio

by aethynioversion 0.1.1i★ –iRuns on your computer

Registry nameio.github.aethynio/aethyn-browser-mcp

Install

Overview

Description from the maker (original English)

Local Playwright browser through residential proxies — agent picks country + sticky identity

PopNx MCP’s three pillars

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

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiVery new↓ 71/wk · ★ –

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: Web & browsers
You need to fill in: AETHYN_PASSWORD

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: AETHYN_USERNAME, AETHYN_PASSWORD, AETHYN_DEFAULT_TIER

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?

ClaudeClaude CodeCursorVS CodeChatGPT

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": {
    "aethyn-browser": {
      "command": "npx",
      "args": [
        "-y",
        "aethyn-browser-mcp"
      ],
      "env": {
        "AETHYN_USERNAME": "your-value",
        "AETHYN_PASSWORD": "your-value",
        "AETHYN_DEFAULT_TIER": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add aethyn-browser --env AETHYN_USERNAME=your-value --env AETHYN_PASSWORD=your-value --env AETHYN_DEFAULT_TIER=your-value -- npx -y aethyn-browser-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": {
    "aethyn-browser": {
      "command": "npx",
      "args": [
        "-y",
        "aethyn-browser-mcp"
      ],
      "env": {
        "AETHYN_USERNAME": "your-value",
        "AETHYN_PASSWORD": "your-value",
        "AETHYN_DEFAULT_TIER": "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": {
    "aethyn-browser": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "aethyn-browser-mcp"
      ],
      "env": {
        "AETHYN_USERNAME": "your-value",
        "AETHYN_PASSWORD": "your-value",
        "AETHYN_DEFAULT_TIER": "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

AETHYN_USERNAME env
Aethyn proxy username (e.g. aethyn-XXXXX). Omit if using a custom proxy via PROXY_*.
AETHYN_PASSWORD secret env
Aethyn proxy password (or PROXY_PASSWORD for a custom proxy).
AETHYN_DEFAULT_TIER env
Default proxy tier: premium (port 2099) or elite (port 5499).

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 9, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account aethynio, 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 Web & browsersi

More stars than 0% of the other 1387 servers in this category
Published to the registry more recently than 16% of the other 1387 servers in this category
Basic checks equal to or better than 100% of the other 1387 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 Aethyn Browser MCP 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: AETHYN_PASSWORD

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 (0.1.1) reached the registry 4 months 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: Browser Use, Chrome DevTools MCP, MCP Server Browser

Alternatives

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

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

Browser Use

Lets AI do web tasks for you, such as filling forms, searching and extracting data, in the maker’s cloud browsers or on your computer.

by browser-useWidely used↓ 1.6M/wk★ 120.1KUpdated 19 days ago

Computer or cloud✓ browser-use.com

Install

Chrome DevTools MCP

Lets AI use Chrome’s developer tools to inspect pages, find what makes them slow and spot errors. Made by the Chrome DevTools team.

by ChromeDevToolsWidely used↓ 1.9M/wk★ 54.8KUpdated 17 days ago

Runs on your computer

Install

MCP Server Browser

MCP server for browser use access

by bytedanceWidely used↓ 792/wk★ 39.6KUpdated 14 months ago

Runs on your computer

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.

Aethyn Browser MCP — residential-proxy browser control for AI agents (pick the country, one identity per task)

An MCP server that lets an AI agent drive a real browser through residential proxies, choosing the exit country / city, tier, and a sticky per-task session — at call time. The browser (Playwright Chromium) runs locally on your machine; you bring your own proxy credentials. Defaults to Aethyn residential proxies, and works with any HTTP proxy you configure.

The only browser MCP where the agent picks the country and holds one identity per task.

Why this exists

Playwright MCP drives a browser well, but its proxy is set once at server startup — one static exit for the whole session. The agent can't ask for a Japanese exit for one task and a German exit for the next.
Hosted "web scraping" MCPs hide the proxy and hand back JSON — no runtime control over geo or session identity, and it's their pool at their price.

This server gives the agent runtime, per-task, steerable geo + sticky identity as tools — exactly what browser agents need to pull country-specific data (pricing, SERPs, catalogs, availability) and feed it into a chart or pipeline.

Quickstart

Add the server to your MCP client — Claude Desktop (claude_desktop_config.json) or Cursor (~/.cursor/mcp.json):

"mcpServers": { "aethyn-browser": { "command": "npx", "args": ["-y", "aethyn-browser-mcp"], "env": { "AETHYN_USERNAME": "aethyn-XXXXX", "AETHYN_PASSWORD": "your-proxy-password", "AETHYN_DEFAULT_TIER": "premium" } } } }

Chromium is downloaded automatically on first install (~170 MB, one-time). If your environment blocks post-install scripts, run it yourself: npx playwright install chromium.

⚠️ Set the tier to match your plan. AETHYN_DEFAULT_TIER defaults to premium (port 2099). If your account is Elite, set it to elite (port 5499) — otherwise traffic hits the Premium port and the proxy returns 407 (auth rejected), even though the browser launched fine. The agent can also override per task with tier: "elite".

That's it. Ask your agent something like *"Launch a browser in Japan, open example.co.jp, verify the exit IP is Japanese, and give me the page as markdown."*

Tools

Tool	What it does
`aethyn_launch_browser`	Launch local Chromium through a residential exit in a chosen `country` (+ `city`/`state` on Elite), `tier`, and sticky `session`. Returns a `session_id`.
`aethyn_navigate`	Go to a URL; waits for load and returns the HTTP status, final URL, and title.
`aethyn_get_content`	Return the page cleaned for reading (`markdown` / `text` / `html`).
`aethyn_snapshot`	Accessibility snapshot (roles, names, `[ref=..]` handles) — how the agent decides what to click.
`aethyn_click`	Click by `ref` (from the snapshot) or a CSS/role/text `selector`.
`aethyn_type`	Type into an input (optionally submit with Enter).
`aethyn_check_exit_ip`	Fetch IP info through the session's proxy to verify the geo actually landed.
`aethyn_new_identity`	Rotate to a fresh exit IP (same country) and clear cookies.
`aethyn_close`	Close the session's context and free memory.
`aethyn_list_countries`	Discover available countries (and Elite cities) at runtime.

How it's different

	Aethyn Browser MCP	Playwright MCP	Hosted scraping MCPs
Runs the browser	Local (yours)	Local	Their cloud
Proxy geo chosen by the agent per task	✅ at call time	❌ fixed at startup	❌ not exposed
Sticky identity per task (pinned exit IP)	✅	❌	❌
Verify the exit geo landed	✅ `check_exit_ip`	❌	❌
Bring your own proxy	✅ any HTTP proxy	one static proxy	❌

No trash-talk — just the capability delta. (Playwright MCP is great; it just wasn't built for per-task geo.)

Bring your own proxy

Aethyn is the default, but any HTTP proxy works — point PROXY_HOST at it and describe its username format with a template. [ ... ] segments are dropped when empty, and {country} {city} {state} {session} {lifetime} are filled from the agent's call:

"mcpServers": { "browser": { "command": "npx", "args": ["-y", "aethyn-browser-mcp"], "env": { "PROXY_HOST": "gate.your-provider.com", "PROXY_PORT": "7000", "PROXY_USERNAME": "your-user", "PROXY_PASSWORD": "your-pass", "PROXY_USERNAME_TEMPLATE": "{username}-country-{country}[-city-{city}]-session-{session}-lifetime-{lifetime}" } } } }

For a plain fixed proxy with no geo in the username, use "PROXY_USERNAME_TEMPLATE": "{username}".

Configuration

Env var	Default	Notes
`AETHYN_USERNAME` / `AETHYN_PASSWORD`	—	Your Aethyn proxy credentials (default provider).
`AETHYN_DEFAULT_TIER`	`premium`	`premium` (HTTP `2099`) or `elite` (HTTP `5499`, unlocks city/state).
`AETHYN_HEADLESS`	`true`	Set `false` to watch the browser.
`AETHYN_MAX_SESSIONS`	`8`	Oldest session is evicted past this cap.
`AETHYN_IDLE_TIMEOUT_MIN`	`10`	Idle sessions auto-close after this many minutes.
`AETHYN_IPINFO_URL`	`https://ipinfo.io/json`	Endpoint `check_exit_ip` hits (through the proxy).
`PROXY_HOST` / `PROXY_PORT` / `PROXY_USERNAME` / `PROXY_PASSWORD` / `PROXY_USERNAME_TEMPLATE`	—	Bring-your-own proxy (overrides the Aethyn default).

HTTP proxies only — Chromium can't authenticate SOCKS5, so this server is HTTP-only by design.

Guardrails

This tool is for collecting public data. Please:

Respect robots.txt, rate limits, and each site's terms and the law. *Can reach ≠ should.*
No login/credential-wall automation, and no CAPTCHA solving — there's no such capability. If a site shows a challenge, read the page and stop rather than trying to bypass it.
Pace yourself. A residential IP firing dozens of requests per second is still obviously a bot.
Your credentials stay in your MCP config on your machine; the proxy password is never logged.

Get credentials

Need residential proxy credentials? The free trial needs no card:

[→ Create an Aethyn account](https://www.aethyn.io/signup?utm_source=github&utm_medium=referral&utm_campaign=browser-mcp&utm_content=readme-cta) · Quickstart docs · Pricing

Contributing

PRs welcome — especially extending [`data/locations.json`](./data/locations.json) with more countries, cities, and states (single lowercase alphanumeric tokens), and new client examples. Keep it real and runnable; use placeholder credentials only.

License

MIT — free to use, copy, and adapt.

Aethyn Browser MCP

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Web & browsersi

Common questions

Alternatives

Browser Use

Chrome DevTools MCP

MCP Server Browser

README from the maker

Aethyn Browser MCP — residential-proxy browser control for AI agents (pick the country, one identity per task)

Why this exists

Quickstart

Tools

How it's different

Bring your own proxy

Configuration

Guardrails

Get credentials

Contributing

License