jp-postal-code-api on new websites

Free open source Japanese postal code lookup API.

Sites using jp-postal-code-api
1
since Oct 2026
Last 30 days
0.0%
of new sites, to Oct 22
no change on the 30 days before
Last 7 days
0.0%
of new sites, 7-day average
no change on the week before
Rank in Data API
#1167
of 1,526 tools, all time
First seen Oct 22, 2026

What we found

  1. jp-postal-code-api appeared on 1 new site in the last 30 days.[1]

Share of new sites using jp-postal-code-api

0.0000% 0.0001% 0.0002% 0.0003% 15 Oct

The line is the 7-day average share of new sites that use jp-postal-code-api, since 15 October. It starts at our first detection.

Data API on new sites

# Movement Tool Share of all sites Share of category Bar
1 – LocalLogic 0.1% 22.7%
2 ▼1 The Movie Database <0.1% 6.7%
3 ▲1 Daum Postcode <0.1% 5.4%
4 ▼1 ViaCEP <0.1% 3.6%
5 ▼1 Frankfurter <0.1% 3.3%
6 ▲2 Walk Score <0.1% 2.8%
7 ▼2 Dimensions <0.1% 1.9%
8 ▼2 Open Food Facts <0.1% 1.9%
9 ▼1 Postcodes.io <0.1% 1.7%
10 ▲9 NASA Open Data <0.1% 1.7%
11 ▼3 BigDataCloud <0.1% 1.5%
12 ▲7 Wikidata <0.1% 1.5%
…
1167 jp-postal-code-api <0.1% <0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Data API tool. All 1526 in Data API

Recently launched products built on jp-postal-code-api

1 of the 1 sites using jp-postal-code-api are product launches we list individually.

Site Found Also detected
LiquiChart liquichart.com · Japan Oct 22 Next.js React Vercel Google Analytics

Notes

  1. These figures cover websites that went live since April 2026, not the web as a whole.

How this page is made

FirstSited looks at each new website near the day it goes live and records what it was built with. We do not go back later, so these figures describe what sites launch with, not what they run today. A site counts towards jp-postal-code-api when we detect jp-postal-code-api on it at that look.

Every share on this page is a proportion of the new sites we were tracking at the time. Sites we found across the wider web count towards the figures, but only product launches are listed by name. How we detect technologies · How we find new sites

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.