Environment API KEY for local install

[ChrisGVE]

Using Claude Code, I am able to connect context7 with

    "context7": {
      "type": "stdio",
      "command": "context7-mcp",
      "args": [
        "--api-key",
        "XXXXXXXXXX"
      ]
    }

But I'd like to use an environment variable such that I don't have to put a secret in my configuration, something like

  "env": {
    "CONTEXT7_API_KEY": "${CONTEXT7_API_KEY}"
  }

I could not find a way to make it work, is it possible?

[enesgules]

#743
Hopefully will be available with this PR