Look up addresses by postal code
Retrieve the full standardized address details for a given Japanese postal code, useful for verifying customer locations or populating address fields in forms.
How it works
Read-onlyData and analysis
The agent takes a valid Japanese postal code as input. It calls the lookup_zipcode tool to retrieve the associated address components. The agent returns the prefecture, city, and town name to the user, ensuring the data is accurate and up-to-date with Japan Post's official data.
Prompt
Paste this into an agent that has the servers below connected. Adjust the names and dates to your own.
Prompt for Look up addresses by postal code
What is the full address for postal code 100-0005? Provide the prefecture, city, and town.MCP servers it needs
Source
The vendor page this playbook is drawn from, and the passage that supports it.
住所→郵便番号も、郵便番号→住所の逆引きも双方向対応。Address to ZIP MCP documentation