In-depth architectural comparison of the Phone and Uuid MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Phone
Developer Tools · Remote HTTP/SSE
Quality: 47/100 (Fair) | Auth: No auth required
Uuid
Developer Tools · Remote HTTP/SSE
Quality: 48/100 (Fair) | Auth: No auth required
Verdict Summary: Choose Phone if you need specialized Developer Tools tools running via a hosted cloud SSE transport. Choose Uuid if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
P
Choose Phone when:
You need dedicated capabilities in the Developer Tools domain.
You prefer remote streaming HTTP/SSE transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
Validate & parse a phone number against the E.164 / ITU calling-code plan (keyless, offline). Detects the country, normalizes to E.164, and checks the national-number length is plausible. Pass an international number (e.g. "+33 1 23 45 67 89") OR a national number plus a `country` ISO code (e.g. ph…
country_calling_codes
Look up international calling (dialing) codes. With no args, lists all. Pass `query` to filter by country name, ISO code, or calling code (e.g. "germany", "DE", "49").
Uuid Tools (2)
validate_uuid
Validate and parse a UUID (keyless, offline): checks the format and returns the version (1-8), variant, whether it is nil/max, and — for time-based versions (v1, v7) — the embedded timestamp as an ISO date.
generate_uuid
Generate one or more random v4 UUIDs.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Phone is categorized under Developer Tools and uses a remote streaming HTTP/SSE transport. In contrast, Uuid belongs to Developer Tools using remote streaming HTTP/SSE transport. Select Phone when you need capabilities focused on developer tools and Uuid when you require tools for developer tools.