How to install Spectra in Gemini CLI

Gemini CLI was replaced by Antigravity CLI in June 2026. On an enterprise licence or paid API key you can still install Spectra by running "gemini mcp add spectra npx -y @progen-labs/spectra", then type /mcp to check it.

Built from the published package · server updated 4 days ago

Run the install command

In a terminal, run:

gemini mcp add spectra npx -y @progen-labs/spectra

2
Check it
Inside Gemini CLI, type /mcp to list servers and tools.

MCP servers run with your permissions. If Spectra needs an API key, add it under env in the config. Check its README.

Install Spectra in another app

Claude Code Claude Desktop Cursor VS Code Windsurf Codex Antigravity CLI ChatGPT

Similar servers

browser-use browser-use

100

Control a real Chrome browser to complete any task: fill forms, extract data, book flights.

AAA Local 119k

Actionbook actionbook

Let your AI agent operate any website through a real, logged-in browser session.

AAA Remote 1.6k

Robin: AI-Powered Dark Web OSINTapurvsinghgautam

Dark web OSINT over Tor: search onion engines, scrape pages, report with your own model.

AAA Local 7.6k

Questions

Does Spectra work in Gemini CLI?

Yes. Gemini CLI supports local and remote mcp servers, extensions (legacy), and Spectra installs with the steps above.

Spectra does not show up in Gemini CLI. What now?

Restart Gemini CLI fully, check the JSON is valid, and make sure Node.js (for npx) is installed. See common MCP errors and fixes.

Is Spectra safe?

It scores 80 of 100. Review the code before you install it, and only give it the access it needs. Grades and details.