A side-by-side look at the Next Devtools MCP and ZennoBrowser MCP Server MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Next Devtools MCP for developer tools work as a local process; choose ZennoBrowser MCP Server for developer tools as a local process. You can also run both side by side in one mcpServers block.
nextjs_index, nextjs_call, nextjs_docs.ZB_API_TOKEN, ZB_API_BASE_URL.Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Developer Tools | Developer Tools |
| Quality signal | 86/100 · Excellent | 37/100 · Fair |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Local subprocess (stdio) |
| Auth | No auth required | Not declared |
| Pricing | Free | Not declared |
| Required env vars | None listed | ZB_API_TOKENZB_API_BASE_URL |
| Verified owner | Verified | Community listing |
| GitHub stars | 828 | 2 |
| Directory activity | 8 views 0 installs 1 upvotes | 0 views 0 installs 0 upvotes |
| Tools | 4 | Not listed |
| Full listing | View Next Devtools MCP | View ZennoBrowser MCP Server |
nextjs_indexDiscover running Next.js dev servers and list each one's runtime MCP tools.nextjs_callCall a runtime tool on a discovered server (errors, routes, logs, Server Actions).nextjs_docsGateway.** Point the agent at version-accurate docs in `node_modules/next/dist/docs/`.browser_evalGateway.** Point the agent at the [`agent-browser`](https://github.com/vercel-labs/agent-browser) CLI for browser automation.No tool names declared yet. Check the project README from the listing page.
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
{
"mcpServers": {
"vercel-next-devtools-mcp": {
"command": "npx",
"args": [
"-y",
"next-devtools-mcp@latest"
]
}
}
}
{
"mcpServers": {
"zennobrowser-mcp-server": {
"command": "npx",
"args": [
"-y",
"...",
"@zennolab/zennobrowser-mcp-server"
],
"env": {
"ZB_API_TOKEN": "YOUR_ZB_API_TOKEN_HERE",
"ZB_API_BASE_URL": "YOUR_ZB_API_BASE_URL_HERE"
}
}
}
}
