experimental-ext-variants

Status: Experimental. This repository provides a multi-language reference implementation of the variants proposal for the Model Context Protocol (MCP), as described in SEP-2053.

#experimental#extension

Install

go install github.com/modelcontextprotocol/experimental-ext-variants@latest

Auto-generated from the repo's primary language — check the repo's own README for its exact install instructions.

Claude Desktop config

A starting point for your claude_desktop_config.json (auto-generated — the repo's README may specify a published package name or required env vars):

{
  "mcpServers": {
    "experimental-ext-variants": {
      "command": "npx",
      "args": [
        "-y",
        "github:modelcontextprotocol/experimental-ext-variants"
      ]
    }
  }
}

From the README

> #### **Status:** Experimental. This work is for prototyping and feedback only, and is not an accepted or official MCP extension. This repository provides a multi-language reference implementation of the variants proposal for the Model Context Protocol (MCP), as described in [SEP-2053](https://github.com/modelcontextprotocol/modelcontextprotocol/pull/2053). | Language | Directory | Package | Status | |----------|-----------|---------|--------| | Go | | | Planned | | Python | | | Planned | | TypeScript | | | Planned | The Go implementation includes runnable example servers under [](go…

Read full README on GitHub →