Iris MCP Server

MCP stdio adapter for Iris browser automation.

Local serverstdio

What is the Iris MCP server?

Iris MCP server is a locally run integration for AI assistants that speak the Model Context Protocol. MCP stdio adapter for Iris browser automation.

What you get

Iris is an open-source Chrome extension and local browser automation runtime for OpenCode. It lets OpenCode agents inspect and control the browser you actually use, with your real tabs, cookies, downloads, console logs, and authenticated sessions.

Configuration and credentials

You will need 2 environment variables: IRIS_EXTENSION_ID, OPENCODE_BROWSER_EXTENSION_ID. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.

  • macOS or Linux. - Chrome, Chromium, or Brave. - Node.js 22 or newer. - Bun for development/builds. - OpenCode if you want native OpenCode tools. Iris currently installs native messaging manifests for Chrome, Chromium, and Brave. Windows support is not implemented.

Setting it up

Setup follows the usual MCP pattern — install or clone the server, register it in your client's configuration file, restart the client. The configuration blocks on this page cover the common clients.

Choosing this one

This sits in the browser automation group, where several servers overlap in what they claim to do but differ sharply once you actually set them up. It is maintained by mizner; worth a glance at recent repository activity before you build anything load-bearing on it.

This entry was verified against Iris's own documentation before publication; SyncDev keeps the directory reviewed rather than auto-generated.

Before you rely on it

  • It runs with your machine's permissions. That is convenient and also the reason to think about what you point it at before you approve a tool call.
  • MCP clients confirm each tool call by default. Leave that on until you have watched what the iris mcp server does with a few real requests.

How to install the Iris MCP server

Example MCP config:

```json
{
  "mcpServers": {
    "iris": {
      "command": "node",
      "args": ["/absolute/path/to/iris/packages/mcp/dist/server.js"]
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Configuration

  • macOS or Linux. - Chrome, Chromium, or Brave. - Node.js 22 or newer. - Bun for development/builds. - OpenCode if you want native OpenCode tools. Iris currently installs native messaging manifests for Chrome, Chromium, and Brave. Windows support is not implemented.
VariableDescriptionRequired
IRIS_EXTENSION_IDConfiguration value read at startup.Optional
OPENCODE_BROWSER_EXTENSION_IDConfiguration value read at startup.Optional

Frequently asked questions

It connects Iris to MCP-compatible AI assistants such as Claude and Cursor. Instead of copying data back and forth by hand, the assistant works with Iris directly.