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PopNx MCPMCP servers for people who use AI · explained in plain words

brawsr

by brawsrversion 0.2.0i★ 0iRuns on your computer
Registry nameio.github.brawsr/brawsr

How to install

Overview

Description from the maker (original English)

Browser sessions, checkpoints, rewind, fork, lineage, and lifecycle tools for brawsr.

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: BRAWSR_API_KEY

Install

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

Passed 2/2 checks · Runs on your computer

First: which AI do you use?

Pick your app and the steps appear below.

Works with Claude, with some setup first

You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a brawsr key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    Open the brawsr site ↗

  3. Open the Claude desktop app’s settings file

    SettingsDeveloperEdit Config

  4. Paste these settings and save the file

    {
      "mcpServers": {
        "brawsr": {
          "command": "npx",
          "args": [
            "-y",
            "@brawsr/mcp-server"
          ],
          "env": {
            "BRAWSR_API_KEY": "your-value",
            "BRAWSR_BASE_URL": "your-value",
            "BRAWSR_MCP_TIMEOUT_MS": "your-value"
          }
        }
      }
    }

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Quit Claude and open it again

  6. Try it

    Use brawsr and tell me what you can do for me, then show me one thing

    ✓ If Claude says it is using brawsr or shows a brawsr tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

ChatGPT cannot connect brawsr yet

brawsr runs on your computer, but ChatGPT can only connect servers that run on the web

What you can do instead

A · Use an app that can connect brawsr

  • You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time) · Only the Claude desktop app (Windows or Mac), not the web or phone
  • You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)
  • You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)
  • You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

B · Others in Web & browsers that work with ChatGPT

Picked from the most used in the same category, only ones that connect by address with no key

Works with Claude Code, with some setup first

You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a brawsr key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    Open the brawsr site ↗

  3. Open Terminal

    Mac: press Command+Space and type Terminal · Windows: open PowerShell

  4. Paste this command and press Enter

    claude mcp add brawsr --env BRAWSR_API_KEY=your-value --env BRAWSR_BASE_URL=your-value --env BRAWSR_MCP_TIMEOUT_MS=your-value -- npx -y @brawsr/mcp-server

    Replace “your-value” with your key before pressing Enter

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Type /mcp in Claude Code

    You should see brawsr listed as connected

  6. Try it

    Use brawsr and tell me what you can do for me, then show me one thing

    ✓ If Claude Code says it is using brawsr or shows a brawsr tool in the answer, you are connected

Menu names checked against Anthropic’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with Cursor, with some setup first

You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a brawsr key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    Open the brawsr site ↗

  3. Click this button to open Cursor

    Open in Cursor

    Cursor asks you to confirm; click Install

  4. Fill in your key

    In the brawsr settings, BRAWSR_API_KEY, BRAWSR_BASE_URL, BRAWSR_MCP_TIMEOUT_MS is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in Cursor in Agent mode

  6. Try it

    Use brawsr and tell me what you can do for me, then show me one thing

    ✓ If Cursor says it is using brawsr or shows a brawsr tool in the answer, you are connected

Menu names checked against Cursor’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Works with VS Code, with some setup first

You need a brawsr key (sign up on the maker’s site, may cost money) · Install Node.js on your computer first (one time)

  1. Install Node.js

    One time only; it works for every server that needs Node.js

    Open the Node.js download page ↗

  2. Sign up and create a brawsr key

    Open the maker’s site, sign up and create an API key for the next step. It may cost money.

    Open the brawsr site ↗

  3. Click this button to open VS Code

    Open in VS Code

    VS Code asks you to confirm; click Install

  4. Fill in your key

    In the brawsr settings, BRAWSR_API_KEY, BRAWSR_BASE_URL, BRAWSR_MCP_TIMEOUT_MS is empty; add your key and save

    Paste the key only into the app’s field, never into a chat or to anyone

  5. Open the AI chat in VS Code in Agent mode

  6. Try it

    Use brawsr and tell me what you can do for me, then show me one thing

    ✓ If VS Code says it is using brawsr or shows a brawsr tool in the answer, you are connected

Menu names checked against VS Code’s help page on Nov 11, 2026 · your screen may differ slightly by app version

Other apps that use MCP, such as Windsurf, Zed or Gemini CLI, each add servers differently. See how in the app list.

See every app that uses MCP →

JSON settings are under “For developers” below

Stuck? Ask people who use brawsr💬 Discussion →
For developers: Terminal commands and JSON settings

Installed on your computer

Claude Code

claude mcp add brawsr --env BRAWSR_API_KEY=your-value --env BRAWSR_BASE_URL=your-value --env BRAWSR_MCP_TIMEOUT_MS=your-value -- npx -y @brawsr/mcp-server

Claude Desktop (claude_desktop_config.json)

{
  "mcpServers": {
    "brawsr": {
      "command": "npx",
      "args": [
        "-y",
        "@brawsr/mcp-server"
      ],
      "env": {
        "BRAWSR_API_KEY": "your-value",
        "BRAWSR_BASE_URL": "your-value",
        "BRAWSR_MCP_TIMEOUT_MS": "your-value"
      }
    }
  }
}

Cursor (~/.cursor/mcp.json)

{
  "mcpServers": {
    "brawsr": {
      "command": "npx",
      "args": [
        "-y",
        "@brawsr/mcp-server"
      ],
      "env": {
        "BRAWSR_API_KEY": "your-value",
        "BRAWSR_BASE_URL": "your-value",
        "BRAWSR_MCP_TIMEOUT_MS": "your-value"
      }
    }
  }
}

VS Code (mcp.json)

{
  "servers": {
    "brawsr": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@brawsr/mcp-server"
      ],
      "env": {
        "BRAWSR_API_KEY": "your-value",
        "BRAWSR_BASE_URL": "your-value",
        "BRAWSR_MCP_TIMEOUT_MS": "your-value"
      }
    }
  }
}

Values you fill in

  • BRAWSR_API_KEY secret required env
    API key for the brawsr project used by this MCP server.
  • BRAWSR_BASE_URL env
    Optional explicit API endpoint override for local development or another deployment.
  • BRAWSR_MCP_TIMEOUT_MS env
    Optional default lifecycle wait in milliseconds, from 1 through 300000.

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

At a glance

Downloads per weeki
36/wk
Licencei
No licence stated
Connection
Runs on your computer
Latest versioni
0.2.0
Published to registryi
Aug 11, 2026
Code last changedi
Nov 4, 2026
Maker
brawsr
Packages
npm: @brawsr/mcp-server
Registry status
Active

Which apps can use it

Based on how this server connects and on each app’s own docs, checked Nov 10, 2026.

Run on your computer in

ClaudeGooseLM StudioMsty StudioCherry StudioCursorVS Code + GitHub CopilotVisual StudioWindsurf (Devin Desktop)ZedKiroClineContinueJetBrains AI AssistantClaude CodeCodex CLIGemini CLIOpenCodenodecodeWarpLibreChatRaycast

All apps, with pros and cons →

Related guides

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 11, 2026

  • ✓ Pass

    Maker matches the repo

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

  • ✓ Pass

    Still maintained

    Code last changed 7 days ago

  • … 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

Discussion

Ask, share a tip or report that it does not work. Sorted by what people marked helpful.

No posts yet. Be the first to ask or share.

Posts here are written by users, not the PopNx team.

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User reviews

No reviews yet

Sign in with Google to write a review

Compared with others in Web & browsersi

  • More stars than 0% of the other 1458 servers in this category
  • Published to the registry more recently than 21% of the other 1458 servers in this category
  • Basic checks equal to or better than 100% of the other 1458 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 brawsr safe?

It passed 2 of 2 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: BRAWSR_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 7 days ago, and the latest version (0.2.0) reached the registry 3 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, Scrapling MCP Server, Chrome DevTools MCP

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↓ 1.7M/wk★ 120.6KUpdated 21 days ago

Computer or cloud✓ browser-use.com

Scrapling MCP Server

Web scraping with stealth HTTP, real browsers, and Cloudflare bypass. CSS selectors supported.

by D4VinciWidely used↓ 396.9K/wk★ 101.2KUpdated 7 days ago

Runs on your computer

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★ 55.1KUpdated 20 days ago

Runs on your computer

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.

brawsr MCP server

The authenticated local MCP bridge for brawsr browser sessions, checkpoints, rewind, and fork. It uses the official packaged @brawsr/sdk; it does not duplicate API models, poll orchestration, or browser/CDP behavior.

The v0.2 transport is local stdio and requires Node.js 22+.

Install and configure

MCP clients spawn the server locally. Pin the package version in client configuration so an MCP client restart cannot silently select a newer release:

{

"mcpServers": { "brawsr": { "command": "npx", "args": ["-y", "@brawsr/mcp-server@0.2.0"], "env": { "BRAWSR_API_KEY": "your-brawsr-api-key" } } } }

The npm package includes the official @brawsr/sdk; no second package install is required. BRAWSR_API_KEY is the only required environment variable. The production endpoint https://api.brawsr.io is built in.

For local development or another deployment, BRAWSR_BASE_URL may explicitly override that endpoint. BRAWSR_MCP_TIMEOUT_MS optionally changes the default bounded operation wait from 30 seconds and accepts an integer from 1 through 300000.

The API key is never a tool argument or result. Standard output is reserved for MCP protocol messages. Redacted lifecycle diagnostics use standard error. A direct shell launch uses the same executable:

BRAWSR_API_KEY=... npx -y @brawsr/mcp-server@0.2.0

Tools

  • brawsr_create_session, brawsr_list_sessions, brawsr_get_session, brawsr_update_session_label, brawsr_close_session
  • brawsr_close_sessions
  • brawsr_create_checkpoint, brawsr_get_checkpoint, brawsr_list_checkpoints, brawsr_delete_checkpoint
  • brawsr_list_rewindable_checkpoints, brawsr_list_session_activity, brawsr_get_session_lineage
  • brawsr_rewind, brawsr_fork
  • brawsr_get_operation, brawsr_wait_operation

Session creation accepts an optional display_label. The same label can be changed or cleared with one brawsr_update_session_label call. Session lists are newest-first, bounded, and may include retained closed or expired sessions. brawsr_get_session includes a CDP URL only while the session is attachable.

brawsr_list_checkpoints is capture history: it can include deleted captures for audit and dashboard views. Use brawsr_list_rewindable_checkpoints when choosing a valid rewind or fork target. Lineage returns one session, its optional parent fork edge, and one bounded page of direct children; callers can follow child session IDs to browse a nested fork tree. Pagination cursors are opaque and may be passed back unchanged.

Checkpoint, rewind, and fork are one high-level tool call. The packaged SDK hides ordinary 202 polling. Rewind returns as soon as its result is CDP-usable; the operation may finish bounded post-restore work in the background. A timeout stops only local waiting and returns the operation/idempotency recovery fields; server work continues.

Fork children are independent peer sessions, not implicit winners or losers. There is no browser-state merge and no automatic sibling cleanup. Rewind restores browser/client state, not remote website side effects, and makes old CDP/browser handles stale. Long-lived WSS/SSE/WebRTC streams may need application-level reconnection.

CDP URLs are sensitive structured outputs. The MCP server never returns the Authorization header. Use the ordinary SDK or a supported framework to attach; the MCP server does not proxy CDP.

Remote Streamable HTTP, OAuth, hosted multi-tenancy, legacy HTTP+SSE, and resumable MCP sessions are deferred beyond the local v0.2 stdio boundary.

Development

npm ci

npm run verify

Release archives are built reproducibly with the pinned Node 24 and npm 11.5.1 toolchain. CI also exercises the server and its real MCP client boundary on Node 22 and Node 24. npm hosts the executable package; the official MCP Registry hosts discovery metadata for io.github.brawsr/brawsr.