Koskamo

Joinable MCP

An MCP server for the Joinable SDK that enables coding agents to make web games multiplayer by adding a single script tag. It supports features like invites, quick match, waiting rooms, synced countdowns, live standings, and rematches without requiring custom server code.

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Package and access

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

Joinable MCP logo, by JoinableVendor evidenceLocal stdioSource reviewed; not executedOperated by Joinable
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Vendor documentation

What you can do with it

  • Add multiplayer functionality to web games with one line of code
  • Run two-player self-tests to verify game synchronization
  • Generate agent prompts for integrating the Joinable SDK
  • Manage player connections via invite links or quick match

Source and maintenance

Vendor evidenceRegistry 0.2.0
mcp-registry: com.getjoinable/joinable@0.2.0Project website

Packages and installation

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

getjoinable 0.2.0

npm
getjoinable package definition
{
  "version": "0.2.0",
  "transport": "stdio",
  "identifier": "getjoinable",
  "registryType": "npm",
  "packageArguments": [
    {
      "type": "positional",
      "value": "mcp"
    }
  ],
  "environmentVariables": [
    {
      "name": "JOINABLE_RELAY",
      "default": "https://relay.getjoinable.com",
      "description": "The Joinable relay the kit and snippets come from"
    }
  ]
}

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": {
    "joinable-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "getjoinable@0.2.0",
        "mcp"
      ],
      "env": {
        "JOINABLE_RELAY": "<YOUR_JOINABLE_RELAY>"
      }
    }
  }
}

Cline

Merge this local stdio configuration, replace every placeholder environment value, and restart Cline. Koskamo has not executed this package.
Cline configuration
{
  "mcpServers": {
    "joinable-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "getjoinable@0.2.0",
        "mcp"
      ],
      "env": {
        "JOINABLE_RELAY": "<YOUR_JOINABLE_RELAY>"
      }
    }
  }
}

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": {
    "joinable-mcp": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "getjoinable@0.2.0",
        "mcp"
      ],
      "env": {
        "JOINABLE_RELAY": "<YOUR_JOINABLE_RELAY>"
      }
    }
  }
}

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": {
    "joinable-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "getjoinable@0.2.0",
        "mcp"
      ],
      "env": {
        "JOINABLE_RELAY": "<YOUR_JOINABLE_RELAY>"
      }
    }
  }
}

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