Gemini CLI

The Context.dev extension gives Gemini CLI live web and document context through a hosted MCP server and an on-demand skill. Search the web, follow company news, scrape pages and YouTube transcripts, crawl sites, extract structured data, parse documents, and retrieve brand intelligence without copying an API key into Gemini CLI.

Install Context.dev for Gemini CLI

Review the official extension source and latest release on GitHub.

Prerequisites

Gemini CLI installed and signed in
A browser available for Context.dev authorization
A Context.dev account with credits for tool calls

Install and connect

Install the extension

Run the following command in your terminal:

gemini extensions install https://github.com/context-dot-dev/gemini-cli-context --auto-update --consent

The extension is installed from the latest public Context.dev release and will receive future updates automatically.

Start a new Gemini CLI session

Exit any session that was already open, then start Gemini CLI again. The extension loads the context MCP server and the context-dev skill when the new session starts.

Authorize Context.dev

Make your first Context.dev request. Gemini CLI opens your browser so you can sign in or create an account, approve access, and return to the terminal.If the browser does not open, run this inside Gemini CLI:

/mcp auth context

Confirm the extension loaded

Run gemini extensions list in your terminal. The output should show gemini-cli-context, the context MCP server, and the context-dev agent skill.Inside Gemini CLI, use /mcp to inspect the connected tools and /skills list to confirm that context-dev is available.

The extension uses Context.dev’s browser-based OAuth flow. Do not add an API key, bearer token, or custom header to the extension configuration.

Verify the setup

Send a small, read-only request whose output is easy to inspect:

Use Context.dev to scrape https://www.context.dev and return the page title and source URL.

Confirm that Gemini CLI shows a successful Context.dev tool call with live output. A response produced without a Context.dev tool call does not verify the connection.

Use the extension

Ask for the result you want. The bundled skill routes the task to the smallest suitable Context.dev tool.

Task	Example request
Search the live web	`Use Context.dev to find the latest official Gemini CLI announcements and cite the source URLs.`
Search company news	`Use Context.dev to find Stripe's latest company news and link every source.`
Read a known page	`Use Context.dev to scrape this page as clean Markdown: <url>`
Summarize a YouTube video	`Use Context.dev to scrape this YouTube video as a timestamped transcript and summarize it: <youtube-url>`
Extract structured data	`Use Context.dev to extract every pricing plan from this site as JSON with name, price, and limits: <url>`
Parse a document	`Use Context.dev to parse this PDF and summarize the findings with page references: <file-url>`
Retrieve a brand profile	`Use Context.dev to retrieve the logo, colors, fonts, and social profiles for linear.app.`
Research one website	`Use Context.dev to discover and crawl the documentation pages about authentication on this site: <url>`

Context.dev also exposes screenshots, website style guides, industry classification, monitors, and asynchronous batches through the same connection.

Monitor and batch tools can create or change persistent account state. Ask for create, update, run, cancel, or delete operations explicitly and review the tool call before approving it.

Manage the extension

gemini extensions update gemini-cli-context

gemini extensions list

gemini extensions uninstall gemini-cli-context

Troubleshooting

Symptom	Fix
The extension is not listed	Install it again from the GitHub URL, then run `gemini extensions list`.
The `context` server is missing	Start a new Gemini CLI session and inspect `/mcp`. If the extension is disabled, run `gemini extensions enable gemini-cli-context`.
Authorization does not start	Run `/mcp auth context`, finish the browser flow, and return to Gemini CLI.
Gemini reports `401` or authentication required	Reconnect with `/mcp auth context` and complete authorization again.
The `context-dev` skill is missing	Start a new session and run `/skills list`. Update or reinstall the extension if it remains unavailable.
Calls fail for insufficient credits	Review usage in the Context.dev dashboard; repeated retries will not add credits.

Reference

Extension source

Inspect the manifest, MCP configuration, skill, tests, and releases.

Gemini CLI extension docs

Official installation, management, and extension-authoring guidance.

Context.dev MCP guide

Hosted server capabilities and OAuth details.

Context.dev dashboard

Review account credits and usage.

AI chat

Frameworks

No-code tools

Install Context.dev for Gemini CLI

Prerequisites

Install and connect

Verify the setup

Use the extension

Manage the extension

Troubleshooting

Reference

Extension source

Gemini CLI extension docs

Context.dev MCP guide

Context.dev dashboard

Install Context.dev for Gemini CLI

​Prerequisites

​Install and connect

​Verify the setup

​Use the extension

​Manage the extension

​Troubleshooting

​Reference

Extension source

Gemini CLI extension docs

Context.dev MCP guide

Context.dev dashboard

Prerequisites

Install and connect

Verify the setup

Use the extension

Manage the extension

Troubleshooting

Reference