Koskamo

MCP Session Bridge

An MCP server that drives the browser you are already signed into, exposing session automation tools via stdio. It supports extension mode for authenticated user profiles and a standalone mode using a dedicated automation browser, enabling agents to inspect CSS, capture screenshots, and fill forms without shipping session cookies.

Package and access

Local package with source-attributed installation metadata. Koskamo does not execute packages during review.

MCP Session Bridge logo, by t3ratechCommunity listingLocal stdioSource reviewed; not executedPublished by t3ratech
You need:Install — free Chrome Brave Edge Opera
Vendor documentation

What you can do with it

  • Inspect and copy CSS from any element
  • Capture full-page screenshots
  • Fill forms from MCP instructions
  • Read Markdown as a document

Source and maintenance

Community listingRegistry 1.2.0
mcp-registry: io.github.t3ratech/mcp-session-bridge@1.2.0Source repositoryProject website
Maintenance checked

Packages and installation

Source-provided package data. Koskamo has not executed or live-probed this package.

@t3ratech/mcp-session-bridge 1.2.0

npm
@t3ratech/mcp-session-bridge package definition
{
  "version": "1.2.0",
  "transport": "stdio",
  "identifier": "@t3ratech/mcp-session-bridge",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "environmentVariables": [
    {
      "name": "T3RNEL_SESSION_MODE",
      "default": "auto",
      "description": "auto (default) uses the extension when its relay socket exists and falls back to a standalone browser; extension forces the extension; standalone forces its own browser."
    },
    {
      "name": "T3RNEL_SESSION_HEADLESS",
      "description": "Set to 1 to run the standalone browser headless. Ignored in extension mode."
    },
    {
      "name": "T3RNEL_SESSION_TIMEOUT_MS",
      "default": "30000",
      "description": "How long a single tool call may take before it fails rather than hanging the client."
    }
  ]
}

Tools

Reported by the attributed source; not independently observed by Koskamo.

No tool definitions available.

Connect from your client

Each snippet configures the same source-provided package; replace placeholders before use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.
Cursor configuration
{
  "mcpServers": {
    "mcp-session-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@t3ratech/mcp-session-bridge@1.2.0"
      ],
      "env": {
        "T3RNEL_SESSION_MODE": "<YOUR_T3RNEL_SESSION_MODE>",
        "T3RNEL_SESSION_HEADLESS": "<YOUR_T3RNEL_SESSION_HEADLESS>",
        "T3RNEL_SESSION_TIMEOUT_MS": "<YOUR_T3RNEL_SESSION_TIMEOUT_MS>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "mcp-session-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@t3ratech/mcp-session-bridge@1.2.0"
      ],
      "env": {
        "T3RNEL_SESSION_MODE": "<YOUR_T3RNEL_SESSION_MODE>",
        "T3RNEL_SESSION_HEADLESS": "<YOUR_T3RNEL_SESSION_HEADLESS>",
        "T3RNEL_SESSION_TIMEOUT_MS": "<YOUR_T3RNEL_SESSION_TIMEOUT_MS>"
      }
    }
  }
}

VS Code

Merge this local stdio configuration, replace every placeholder environment value, and restart VS Code. Koskamo has not executed this package.
VS Code configuration
{
  "servers": {
    "mcp-session-bridge": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@t3ratech/mcp-session-bridge@1.2.0"
      ],
      "env": {
        "T3RNEL_SESSION_MODE": "<YOUR_T3RNEL_SESSION_MODE>",
        "T3RNEL_SESSION_HEADLESS": "<YOUR_T3RNEL_SESSION_HEADLESS>",
        "T3RNEL_SESSION_TIMEOUT_MS": "<YOUR_T3RNEL_SESSION_TIMEOUT_MS>"
      }
    }
  }
}

Claude Desktop

Merge this local stdio configuration, replace every placeholder environment value, and restart Claude Desktop. Koskamo has not executed this package.
Claude Desktop configuration
{
  "mcpServers": {
    "mcp-session-bridge": {
      "command": "npx",
      "args": [
        "-y",
        "@t3ratech/mcp-session-bridge@1.2.0"
      ],
      "env": {
        "T3RNEL_SESSION_MODE": "<YOUR_T3RNEL_SESSION_MODE>",
        "T3RNEL_SESSION_HEADLESS": "<YOUR_T3RNEL_SESSION_HEADLESS>",
        "T3RNEL_SESSION_TIMEOUT_MS": "<YOUR_T3RNEL_SESSION_TIMEOUT_MS>"
      }
    }
  }
}

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