Cotlet — Claude Code MCP server: what it does, how to install
Connects your AI agent to a cloud Chrome instance with your active logins. It allows agents to interact with web apps lacking public APIs.
claude mcp add --transport http cotlet https://cotlet.dev/mcp/v1/cotlet/connectWhat Cotlet does
Cotlet runs a persistent cloud Chrome instance where you sign in to web apps manually. Passwords are never stored. Background network calls appear in a log. The agent connects to this session through a remote MCP endpoint or a REST API.
The built-in catalog contains 259 web applications. When an integration lacks specific endpoints, the agent interacts with web pages directly. It clicks elements with cotlet_browser_click, fills inputs, or connects via Chrome DevTools.
Setup requires an API key. Testing begins with a 7-day trial offering 2000 credits. Standard tool calls consume 10 credits each, while raw browser control runs on a per-minute rate.
What it helps with
- automate workflows in web apps without public APIs
- reschedule appointments in booking portals
- export invoices and financial reports directly from web consoles
- interact with arbitrary web pages via DevTools protocols
Example prompts for the agent
- Check Skool for new member applications and summarize them
- Reschedule all appointments booked for Friday to next Monday
- Use cotlet_browser_open to navigate to the billing dashboard and extract the latest statement
How to install Cotlet
Platform CLI: remote server
claude mcp add --transport http cotlet https://cotlet.dev/mcp/v1/cotlet/connectPlatform CLI: remote server
codex mcp add cotlet --url https://cotlet.dev/mcp/v1/cotlet/connectConfig file
{
"mcpServers": {
"cotlet": {
"url": "https://cotlet.dev/mcp/v1/cotlet/connect"
}
}
}Config file
{
"servers": {
"cotlet": {
"type": "http",
"url": "https://cotlet.dev/mcp/v1/cotlet/connect"
}
}
}Platform CLI: remote server
gemini mcp add -t http cotlet https://cotlet.dev/mcp/v1/cotlet/connectStep by step, with commands for each platform: How to add an MCP server to Claude Code, Codex, Cursor, VS Code, Gemini CLI and more
Questions about Cotlet
How to install Cotlet in Claude Code?
Run the terminal command claude mcp add --transport http cotlet https://cotlet.dev/mcp/v1/cotlet/connect. You also need to supply your account API key for authorization.
What does Cotlet do?
It provides a persistent cloud browser session already authenticated with your credentials. Your agent can read data and perform UI actions across services that lack developer APIs.
How does Cotlet charge for usage?
New accounts receive a 7-day trial with 2000 credits, followed by credit packs starting at $29 without ongoing subscriptions. Each successful tool execution costs 10 credits, and direct browser sessions are billed per minute.
