MCPVault

browser_eval

MCP tool from Next Devtools MCP by vercel

Gateway. Point the agent at the agent-browser CLI for browser automation.

How to use it

browser_eval is exposed by the Next Devtools MCP MCP server. Add the server to your MCP client (Claude Desktop, Cursor, Windsurf and others), and the browser_eval tool becomes available to the model automatically. See the full listing for setup details and every tool this server provides.

Install Next Devtools MCP

$npx add-mcp next-devtools-mcp@latest
FULL NEXT DEVTOOLS MCP LISTING

Other tools in Next Devtools MCP (11)

args

(optional) — arguments object, only if the tool requires them

get_errors

current build, runtime, and type errors

get_logs

path to the dev log file (browser console + server output)

get_page_metadata

routes, pages, component metadata

get_project_metadata

project structure, config, dev server URL

get_server_action_by_id

resolve a Server Action ID to its source file

nextjs_call

Call a runtime tool on a discovered server (errors, routes, logs, Server Actions).

nextjs_docs

Gateway. Point the agent at version-accurate docs in nodemodules/next/dist/docs/.

nextjs_index

Discover running Next.js dev servers and list each one's runtime MCP tools.

port

(required) — dev server port

toolName

(required) — runtime tool to invoke