{
  "markdown": "# Subnet Calculator MCP\n\nSubnet Calculator MCP is a Cloudflare Workers-hosted Model Context Protocol server that calculates IPv4 subnet information from an IP address and CIDR prefix or dotted decimal subnet mask.\n\n## Public endpoint\n\n```text\nhttps://subnet-calculator.zekedoesai.com/mcp\n```\n\nTransport: **Streamable HTTP**\n\nAuthentication: **none currently required**\n\n## Tools\n\n### `calculate_subnet`\n\nCalculates IPv4 subnet details.\n\nAccepted input forms:\n\n```json\n{ \"address\": \"192.168.1.10/24\" }\n```\n\n```json\n{ \"address\": \"192.168.1.10\", \"prefixLength\": 24 }\n```\n\n```json\n{ \"address\": \"192.168.1.10\", \"subnetMask\": \"255.255.255.0\" }\n```\n\nReturns:\n\n- network address\n- broadcast address\n- subnet mask\n- wildcard mask\n- first usable host\n- last usable host\n- total address count\n- usable host count\n- CIDR prefix\n- IP class\n- scope: private, public, loopback, link-local, multicast, or reserved\n- notes for `/31` and `/32` networks\n\n## Connect from an MCP client\n\n```json\n{\n  \"mcpServers\": {\n    \"subnet-calculator\": {\n      \"url\": \"https://subnet-calculator.zekedoesai.com/mcp\"\n    }\n  }\n}\n```\n\nSome clients may require explicitly setting the transport type to `streamable-http`.\n\n## Local development\n\nInstall dependencies:\n\n```bash\nnpm install\n```\n\nRun type checking:\n\n```bash\nnpm run typecheck\n```\n\nStart a local Cloudflare Workers development server:\n\n```bash\nnpm run dev\n```\n\nThe MCP endpoint is available at `/mcp` on the local Wrangler dev URL.\n\n## Deploy\n\nAuthenticate with Cloudflare Wrangler if needed:\n\n```bash\nwrangler login\n```\n\nDeploy to Cloudflare Workers:\n\n```bash\nnpm run deploy\n```\n\n## MCP Registry\n\nThis repository includes `server.json` for MCP Registry publication. The registry entry describes the hosted remote server and its Streamable HTTP endpoint.\n",
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