Browser DevTools MCP

Playwright-powered browser automation and debugging for VS Code and Cursor via the Model Context Protocol (MCP).

→ serkan-ozal/browser-devtools-mcp-vscode-extension · listed on glama

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// key findings

✅

No credential exfiltration, no sensitive file access, no obfuscation

Static analysis found nothing flowing your secrets to unexpected places.

✅

Open source with a license and README

Anyone can audit the code, the license is declared, and the publisher documents what it does.

🔐

You'll be asked for 1 credential: POSTHOG_API_KEY

These are read from process.env at runtime. Make sure you trust where they’ll be sent.

// known CVEs in dependencies1 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

lowws@8.20.0GHSA-58qx-3vcg-4xpx

ws: Uninitialized memory disclosure

Depend on this server? Get alerted when its CVEs change.Watch this server free →

// required environment variables

This server reads these from process.env. You'll be asked to provide them before it can run.

configPLAYWRIGHT_SKIP_BROWSER_DOWNLOAD— VSIX / CI: =1 is set when packaging so browser ZIPs are not part of the extension.

🔐 secretPOSTHOG_API_KEY

configTELEMETRY_ENABLE— 2. Environment variable: Set =false before starting VS Code/Cursor.

configVIS_UI_PORT

configVIS_WS_PORT— The UI reads in visualizer-ui/src/main.ts and connects to ws://localhost:<wsPort>.

// full audit trail

The full breakdown of what we checked, the deductions that landed, the network hosts, the dependency advisories, and concrete fix guidance is available to verified publishers.

// improvement guidance — verified publishers only

We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.

// embed badge in your README

[![M8ven Score](https://m8ven.ai/badge/mcp/serkan-ozal-browser-devtools-mcp-vscode-extension-103a0p)](https://m8ven.ai/mcp/serkan-ozal-browser-devtools-mcp-vscode-extension-103a0p)

commit: 0797c8ced4113ab1de9c041562565aa22c19824a

code hash: f1bb01bc739f8c55b02315c825d80209f7801b7fc519ca77f20091bffface026

verified: 6/10/2026, 10:13:43 AM

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