ViaCEP on new websites
Free Brazilian postal code (CEP) address lookup API widely used for address autofill.
479 sites
475 found by StackScope, 4 via launch platforms
- StackScope Wider Web 296
- StackScope Discovery (Indie) 179
- Product Hunt 4
ViaCEP appeared on about 140 new sites in the last 30 days.
These figures cover websites that went live since April 2026, not the web as a whole.
Get told when a new site ships with ViaCEP.
140 new sites with ViaCEP first seen in the last 30 days.
Stackdar watches every launch we detect and sends you the ones using ViaCEP, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workShare of new sites using ViaCEP
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.
The shaded areas were measured against a different set of sites, so the line can step there without ViaCEP itself changing.
Coverage details
Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.
Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: 8 July to 10 September 2026, before we improved our infrastructure to index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from 10 September. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.
What kind of sites use ViaCEP
125 sites with a known type, all time
Domain endings using ViaCEP
479 sites, all time
- .com 42.6%
- .br 23.2%
- .app 8.4%
- .online 6.7%
- .site 5.6%
- .store 2.3%
- .tech 2.1%
- .cloud 1.9%
- .net 1.0%
- .ai 0.8%
- .co 0.6%
- .io 0.6%
Country
Country known for 70 of 479 sites (14.6%), all time.
How we know
Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. We count a country only where it is stated plainly enough to be sure: a governing-law clause or company registration number on a legal page, a phone country code, or a country domain ending. Sites that publish none are not counted at all.
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Brazil
100.0%
Data API leaders
| Tool | % of sitesall time | % of categoryall time | ||
|---|---|---|---|---|
| #1 | – |
LocalLogic
|
0.1% | 23.2% |
| #2 | ▼1 |
The Movie Database
|
<0.1% | 6.6% |
| #3 | ▲1 |
Daum Postcode
|
<0.1% | 5.4% |
| #4 | ▼1 |
ViaCEP
Current page
|
<0.1% | 3.5% |
| #5 | ▼1 |
Frankfurter
|
<0.1% | 3.2% |
Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Data API tool. All 1488 in Data API →
Often used with
| Tool | Sites | vs all new sites |
|---|---|---|
Vercel
|
179 | 2.8x |
Lucide Icons
|
205 | 2.6x |
Next.js
|
164 | 2.5x |
Tailwind CSS
|
255 | 2.2x |
React
|
264 | 2.1x |
Tools that turn up far more often on ViaCEP sites than on new sites in general, and how many times as common each one is there.
Recent launches using ViaCEP
183 of the 479 sites using ViaCEP are product launches we list individually. The other 296 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works
NG DTF
Also detected
AgendaPrime — Sistema de gestão para clínicas com IA e WhatsApp
Also detected
UaiPedi: cardápio digital com pedidos pelo WhatsApp
Also detected
Iteraflow — Automação com inteligência artificial
Also detected
Affere · Bancada de diagnóstico
Also detected
CompartilheJá! – Pegue emprestado o que precisar
Also detected
Cartão fidelidade digital na Apple Wallet e Google Wallet · fieloo
Also detected
Gestão Nexus — gestão empresarial completa e modular
Also detected
Bixuco — Tecnologia que acompanha, acolhe e conecta
Also detected
LigaPro — Gestão Completa de Eventos Esportivos
Also detected
New Dent - Gestão de Clínica Odontológica
Also detected
Showing the most recent 12 of 183.
The StackScope API serves all 479 sites using ViaCEP, filterable and exportable, from £15 a month.