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| Useful tools Small, focused tools that solve real problems. |
Explore AI Using AI to make development more fun and productive. |
Keep it simple Few dependencies, readable code, works offline. |
Offline MCP servers that teach AI agents how things work in Japan.
- japan-mcp — Give your AI agent a Japanese calendar: holidays, business days and 和暦.
- japan-postal-mcp — Postal codes (郵便番号): code → address and address → code.
- japan-bank-mcp — Bank and branch codes, and account names in 全銀 kana for transfers.
- japan-invoice-mcp — Invoices: registration numbers, consumption tax per rate and 源泉徴収.
- Working on — MCP servers and small tools for AI agents
- Learning — AI, automation, and better workflows
- Interested in — developer tools and simple design
