Subnet Calculator MCP for ChatGPT

io.github.zekerutledge/subnet-calculator-mcp

Calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask

client:ChatGPT transport:streamable-http tools:1

Install Subnet Calculator MCP in ChatGPT

Settings → Connectors → Advanced → Developer mode

https://subnet-calculator.zekedoesai.com/mcp

Custom connectors are a paid-plan feature and take a remote URL only. ChatGPT cannot run a packaged server locally. ChatGPT docs