Developer Tools & Repos MCP Servers for Claude Code

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Japanese holiday and business-day calculations using official Japan Cabinet Office data.

Whether 110 is a common TCP/UDP port.

Whether 143 is a common TCP/UDP port.

Whether 20 is a common TCP/UDP port.

Whether 21 is a common TCP/UDP port.

Whether 22 is a common TCP/UDP port.

Whether 25 is a common TCP/UDP port.

Whether 3306 is a common TCP/UDP port.

Whether 465 is a common TCP/UDP port.

Whether 6379 is a common TCP/UDP port.

Whether 80 is a common TCP/UDP port.

Whether 8080 is a common TCP/UDP port.

Whether 993 is a common TCP/UDP port.

Whether 995 is a common TCP/UDP port.

See what's on your ports, the processes behind them, and diagnose conflicts and leaks.

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Check a Postgres URL shape. Credentials discarded.

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MCP server for process management and monitoring with strict security boundaries. Launch processes, monitor resources, manage services, and

Knowledge graph CLI for managing features, ADRs, and test criteria as MCP-discoverable artifacts.