Address to ZIP
Actively maintained
≈ 6visits/mo
Little sign of use · estimate, read Oct 14, 2026
- For
- Developers and AI agent builders who need Japanese address-to-postal-code lookup in their apps or tools.
- Activity
- Actively maintainedsite updated 4 weeks ago
- Company
- since 2026per their site
- Runs as
- API
- Used for
- look up postal codes from Japanese addresses via API
- let AI assistants search addresses through MCP
- convert CSV lists of Japanese addresses to postal codes
- Has an MCP server (1 in the registry)public registry →
- Publishes llms.txt, a file written for AI assistantsaddresstozip.jp ↗
- Founded2026per their site ↗
- MCP serverjp.addresstozip/address-to-zipverified in the MCP registry
- Stateanswers, 2 toolschecked 2026-10-20
- Address to connectaddresstozip.jp/mcp
- OpenAPI spec3 pathsthe spec ↗
- API docsaddresstozip.jp/apithe vendor's page ↗
- MCP docsaddresstozip.jp/mcp-serverthe vendor's page ↗
- Status pagelinked from the homepagestats.uptimerobot.com/EBFohWGuoO ↗
This card as JSON, for your agent →
Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.
Figure and bar: visits/mo, estimate · year: online since
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betaThree tools from the Atlas for the job you describe, each with what fits and what does not.
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Sign in to leave a noteWhat is Address to ZIP?
Searches Japanese addresses and returns their postal codes through an API, with an MCP server for AI agents. It is listed in the Atlas under Developer tools.
Who is Address to ZIP for?
Developers and AI agent builders who need Japanese address-to-postal-code lookup in their apps or tools.
Do people use Address to ZIP?
Little sign of use: ≈ 6 visits/mo · estimate, 2026-10.
Is Address to ZIP still maintained?
Actively maintained: site updated 4 weeks ago.
What are alternatives to Address to ZIP?
In Developer tools, by use: Cloudflare, Twilio, Cursor, Softr, Microsoft AI, Postman.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one tool at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.
How we read every tool → · By INITE Atlas Desk