Spawner MCP

The Spawner MCP server enables coding agents to manage self-hosted preview environments. It provides tools to create, monitor, and interact with isolated app copies for each git branch, including starting environments, checking status, reading logs, executing commands, and generating shareable URLs.

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Package and access

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

Community listingLocal stdioSource reviewed; not executedPublished by Flosk6

You need:npm install -g spawner-cli

Vendor documentation

What you can do with it

Create and manage preview environments for git branches
Execute commands and read logs within preview environments
Generate secure URLs for reviewing code changes
Check environment status and capacity

Source and maintenance

Community listingRegistry 2.2.1

mcp-registry: io.github.Flosk6/spawner@2.2.1 Source repository Project website

Maintenance checked: Oct 31, 2026, 10:59 PM UTC

Packages and installation

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

spawner-cli 2.2.1

npm

spawner-cli package definition

{
  "version": "2.2.1",
  "transport": "stdio",
  "identifier": "spawner-cli",
  "registryType": "npm",
  "registryBaseUrl": "https://registry.npmjs.org",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "SPAWNER_URL",
      "format": "string",
      "description": "Address of your Spawner server's dashboard, such as https://spawner.preview.example.com. Without it, the server of spawner login"
    },
    {
      "name": "SPAWNER_TOKEN",
      "format": "string",
      "description": "Personal API token (spn_...), from spawner token create or the dashboard. Without it, the token of spawner login"
    }
  ]
}

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.

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Cursor

Merge this local stdio configuration, replace every placeholder environment value, and restart Cursor. Koskamo has not executed this package.

Cursor configuration

{
  "mcpServers": {
    "spawner-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "spawner-cli@2.2.1",
        "mcp"
      ],
      "env": {
        "SPAWNER_URL": "<YOUR_SPAWNER_URL>",
        "SPAWNER_TOKEN": "<YOUR_SPAWNER_TOKEN>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.

Cline configuration

{
  "mcpServers": {
    "spawner-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "spawner-cli@2.2.1",
        "mcp"
      ],
      "env": {
        "SPAWNER_URL": "<YOUR_SPAWNER_URL>",
        "SPAWNER_TOKEN": "<YOUR_SPAWNER_TOKEN>"
      }
    }
  }
}

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": {
    "spawner-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "spawner-cli@2.2.1",
        "mcp"
      ],
      "env": {
        "SPAWNER_URL": "<YOUR_SPAWNER_URL>",
        "SPAWNER_TOKEN": "<YOUR_SPAWNER_TOKEN>"
      }
    }
  }
}

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": {
    "spawner-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "spawner-cli@2.2.1",
        "mcp"
      ],
      "env": {
        "SPAWNER_URL": "<YOUR_SPAWNER_URL>",
        "SPAWNER_TOKEN": "<YOUR_SPAWNER_TOKEN>"
      }
    }
  }
}

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