No tools found - MCP server within Cursor

[hende8]

Hi all!

Seems like the cursor cant configure the mcp server
Moreover, i got this error in the chrome extension :

can someone help me please?

[SaschaDoe]

I have the same problem

[batman2201]

Perhaps the docs is unclear if you are using on Windows

1. Run this on cmd or powershell to install first: npx -y @agentdeskai/browser-tools-mcp@1.2.0, then you will see the IP of the server
2. Press F12 on browser -> Switch to BrowsertoolMCP -> Put the IP you got from step 1 and test connection

[hende8]

I ran first step and i got :
Checking localhost:3031... Error checking localhost:3031: fetch failed Checking localhost:3032... Error checking localhost:3032: fetch failed Checking localhost:3033... Error checking localhost:3033: fetch failed Checking localhost:3034... Error checking localhost:3034: fetch failed Checking localhost:3035... Error checking localhost:3035: fetch failed No server found during discovery Initial server discovery failed. Will try again when tools are used.

@batman2201

[lifeinchords]

Similar issue, my approach is to set it up slightly differently than the docs:

It's working by

• running the server from source
• setting up the MCP Json config file in my project, instead of manually add configuration in Cursor Settings

steps

• git clone https://github.com/AgentDeskAI/browser-tools-mcp
• cd browser-tools-mcp/browser-tools-server
• npm install
• npm run start
• in a new terminal tab, cd into your project root
• cd .cursor ... if it doesnt exist do mkdir .cursor to make it, then cd into it
• make a mcp.json file here, so it'll be in [your-project-folder]/.cursor/mcp.json
• paste this into the file and save it:

{
    "mcpServers": {
        "browser-tools": {
            "command": "npx",
            "args": ["-y", "@agentdeskai/browser-tools-mcp@1.2.0"]
        }
    }
}

• in Cursor app, go to Cursor -> Settings -> Cursor Settings in the menu bar. Then go to the MCP tab
• Now you should see the browser tools enabled, and the tools listed like so
• 
• When Cursor says 'Project Managed' thaht means it's seeing the config you made in [your-project-folder]/.cursor/mcp.json
• Now Quit Cursor completely. Not just close all windows. Make sure it's closed. If you are not sure, double check Activity Monitor to kill the app. Then reopen Cursor
• Go back to the settings, now you should see the tools listed
• if in the top right, it says Disabled.. click that to Enable it. You might have to restart Cursor again.
• finally, set up the extension as described in the docs

So now you'll always need the browser-tools server running in one tab. then another tab you'll start you project's dev server/
This is a good tool to set up diff processes in multipe iTerm tabs at once
itermocil

I think these are all the steps. Going off of memory. @tedjames did I get this right?

one more thing - make sure you have the latest version of Cursor. Lots of fixes lately on MCP server functionality
https://changelog.cursor.sh/

[atrefonas]

I ran first step and i got : Checking localhost:3031... Error checking localhost:3031: fetch failed Checking localhost:3032... Error checking localhost:3032: fetch failed Checking localhost:3033... Error checking localhost:3033: fetch failed Checking localhost:3034... Error checking localhost:3034: fetch failed Checking localhost:3035... Error checking localhost:3035: fetch failed No server found during discovery Initial server discovery failed. Will try again when tools are used.

@batman2201

You have to run npx @agentdeskai/browser-tools-server@1.2.0 in a terminal before you do anything with npx @agentdeskai/browser-tools-mcp@1.2.0. This is a different command. There are two separate commands that look almost the same. I get this is highly confusing and never explained anywhere.