Claude (web and desktop)
- Open Settings → Connectors → Add custom connector.
- Paste the server's remote URL from its page here, then sign in if asked.
- For local servers, use Claude Desktop's config file or Claude Code:
claude mcp add <name> -- npx -y <package>.
ChatGPT
- Remote MCP servers connect through Settings → Apps & Connectors. Custom servers need Developer mode under Advanced.
- ChatGPT on the web can't launch local servers. Use a remote one.
Cursor
- Open Settings → MCP → Add new MCP server, or edit
~/.cursor/mcp.json. - Paste the JSON from the Cursor tab on any server page.
VS Code
- Add the server to
.vscode/mcp.jsonusing the VS Code tab on the server page.
Before you connect anything
- Check the status: green means it answered our live handshake recently.
- Check the publisher: a ✓ verified domain means the publisher proved they own that domain to the official MCP Registry.
- Prefer servers whose tools are marked read-only if you only need to look things up.