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Claude MCP - with NVM

As documented by Jonathan Gastón Löwenstern (hereafter, JGL), loading Claude Desktop MCP servers while using Node Version Manager (NVM) can be fraught, and there is little assistance in the community. Thankfully, Jonathon describes and solves the problems.

My modification is the ability to configure and use an NVM alias for use with Claude MCPs, without hardcoding the node version.

Caveats: This is tested and known to work on MacOS Monterey with ZSH. I have not tried other flavors of MacOS, Linux, or shells.

The Strategy

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from hashlib import md5, sha1
from cryptography.hazmat.primitives.ciphers import Cipher, algorithms, modes
from cryptography.hazmat.backends import default_backend
from base64 import b64encode, b64decode
import sys, time
import requests

DEFAULT_MASTERKEY=b'p1a2l3o4a5l6t7o8'

class PanCrypt():