We're live on Product Hunt. If you have found StackScope useful, a comment would mean a lot. See the launch

← All technologies

Sites using OpenAI API

Programmatic access to GPT, embeddings, image generation, and other OpenAI models.

#2 of 152 in AI API Tracked since Apr 2026 Last seen: Sep 1, 2026 Website: platform.openai.com
Stackdar alerts

Get told when a new site ships with OpenAI API.

Stackdar watches every launch we detect and sends you the ones using OpenAI API, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

1,539 sites

1,190 found by StackScope, 349 via launch platforms

StackScope Discovery (Indie) 762 StackScope Wider Web 428 Product Hunt 283 PeerPush 44 Hacker News 11 Other 11
  • StackScope Discovery (Indie) 762
  • StackScope Wider Web 428
  • Product Hunt 283
  • PeerPush 44
  • Hacker News 11
  • Other 11
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.0% +0.0pp
Most used with HSTS, Google Search Console, Tailwind CSS
Top product types AI, Marketing, Productivity
Green hosting 30% vs 45% avg

OpenAI API has been detected on 1,539 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Dorak AI — Find the Work You Delivered but Never Billed, today.

It's most commonly paired with HSTS, Google Search Console, and Tailwind CSS. By product type, the launches using it are most often AI (15%), Marketing (15%), and Productivity (14%). By estimated origin, the United States leads (44%), ahead of the United Kingdom (16%). By domain ending, launches using it are 2.1 times as likely as the average launch to live on a .ai domain.

What kind of products ship with OpenAI API

879 launches

AI
15.24%
Marketing
14.90%
Productivity
14.22%
Education
12.06%
Health
9.90%
Finance
6.94%
Hiring & HR
6.03%
Content
5.35%
Developer Tools
4.55%
Social
3.64%
Crypto
2.62%
E-commerce
2.62%
Design
1.02%
Games
0.80%
Directory
0.11%

Domain endings using OpenAI API

1,538 sites

  • .com 38.82%
  • .app 14.17%
  • .ai 12.03%
  • .io 5.98%
  • .org 2.93%
  • .online 2.47%
  • .co 2.41%
  • .dev 2.28%
  • .site 1.82%
  • .xyz 1.82%
  • .net 1.69%
  • .in 1.56%
  • .tech 1.30%
  • .uk 1.30%
  • .ca 1.11%

Country

98 of 1,539 sites, where we are confident of the country.

  • United States United States 43.88%
  • United Kingdom United Kingdom 16.33%
  • India India 6.12%
  • Canada Canada 5.10%
  • Italy Italy 3.06%
  • Brazil Brazil 2.04%
  • Germany Germany 2.04%
  • France France 2.04%
  • Israel Israel 2.04%
  • Netherlands Netherlands 2.04%
  • Romania Romania 2.04%
  • Singapore Singapore 2.04%
  • United Arab Emirates United Arab Emirates 1.02%
  • Estonia Estonia 1.02%
  • Spain Spain 1.02%

Share of new sites using OpenAI API

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.

0.0%
last 7 days
+0.0pp vs prior week
1,539
sites all time
since Apr 2026
OpenAI API daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug Weekly averages before this point, daily after. Jun 3 · 6 / 714 = 0.8% Jun 4 · 1 / 599 = 0.2% Jun 5 · 1 / 581 = 0.2% Jun 6 · 2 / 436 = 0.5% Jun 7 · 1 / 404 = 0.2% Jun 8 · 2 / 515 = 0.4% Jun 9 · 3 / 876 = 0.3% Jun 10 · 1 / 722 = 0.1% Jun 11 · 2 / 577 = 0.3% Jun 12 · 1 / 449 = 0.2% Jun 13 · 1 / 380 = 0.3% Jun 14 · 3 / 345 = 0.9% Jun 15 · 0 / 532 = 0.0% Jun 16 · 3 / 1052 = 0.3% Jun 17 · 3 / 907 = 0.3% Jun 18 · 7 / 674 = 1.0% Jun 19 · 2 / 547 = 0.4% Jun 20 · 2 / 443 = 0.5% Jun 21 · 3 / 383 = 0.8% Jun 22 · 2 / 576 = 0.3% Jun 23 · 6 / 900 = 0.7% Jun 24 · 5 / 737 = 0.7% Jun 25 · 4 / 618 = 0.6% Jun 26 · 1 / 534 = 0.2% Jun 27 · 1 / 431 = 0.2% Jun 28 · 3 / 383 = 0.8% Jun 29 · 4 / 503 = 0.8% Jun 30 · 5 / 801 = 0.6% Jul 1 · 3 / 795 = 0.4% Jul 2 · 1 / 604 = 0.2% Jul 3 · 0 / 499 = 0.0% Jul 4 · 2 / 411 = 0.5% Jul 5 · 0 / 367 = 0.0% Jul 6 · 2 / 551 = 0.4% Jul 7 · 4 / 1171 = 0.3% Jul 8 · 20 / 12590 = 0.2% Jul 9 · 33 / 23745 = 0.1% Jul 10 · 22 / 22551 = 0.1% Jul 11 · 23 / 15979 = 0.1% Jul 12 · 11 / 20291 = 0.1% Jul 13 · 16 / 20922 = 0.1% Jul 14 · 20 / 20408 = 0.1% Jul 15 · 20 / 17242 = 0.1% Jul 16 · 15 / 14264 = 0.1% Jul 17 · 23 / 19732 = 0.1% Jul 18 · 19 / 22700 = 0.1% Jul 19 · 27 / 26075 = 0.1% Jul 20 · 23 / 22586 = 0.1% Jul 21 · 18 / 21649 = 0.1% Jul 22 · 21 / 23202 = 0.1% Jul 23 · 15 / 16863 = 0.1% Jul 24 · 9 / 12855 = 0.1% Jul 25 · 7 / 8946 = 0.1% Jul 26 · 17 / 19976 = 0.1% Jul 27 · 31 / 33865 = 0.1% Jul 28 · 13 / 38221 = 0.0% Jul 29 · 19 / 50103 = 0.0% Jul 30 · 17 / 43951 = 0.0% Jul 31 · 29 / 51109 = 0.1% Aug 1 · 31 / 50479 = 0.1% Aug 2 · 43 / 49661 = 0.1% Aug 3 · 25 / 48190 = 0.1% Aug 4 · 20 / 37326 = 0.1% Aug 5 · 8 / 32706 = 0.0% Aug 6 · 28 / 36580 = 0.1% Aug 7 · 15 / 37888 = 0.0% Aug 8 · 17 / 39680 = 0.0% Aug 9 · 20 / 34205 = 0.1% Aug 10 · 12 / 28846 = 0.0% Aug 11 · 16 / 32017 = 0.0% Aug 12 · 21 / 33478 = 0.1% Aug 13 · 13 / 49911 = 0.0% Aug 14 · 18 / 51428 = 0.0% Aug 15 · 23 / 51492 = 0.0% Aug 16 · 31 / 51804 = 0.1% Aug 17 · 22 / 41406 = 0.1% Aug 18 · 27 / 53842 = 0.1% Aug 19 · 18 / 49414 = 0.0% Aug 20 · 24 / 66830 = 0.0% Aug 21 · 40 / 90357 = 0.0% Aug 22 · 41 / 91514 = 0.0% Aug 23 · 47 / 90226 = 0.1% Aug 24 · 25 / 78837 = 0.0% Aug 25 · 22 / 69248 = 0.0% Aug 26 · 27 / 65053 = 0.0% Aug 27 · 42 / 83367 = 0.1% Aug 28 · 36 / 83305 = 0.0% Aug 29 · 45 / 84154 = 0.1% Aug 30 · 40 / 92073 = 0.0% Aug 31 · 30 / 88567 = 0.0%
Mar 30, 2026 90 days Aug 31, 2026

The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

AI API leaders

Tool % of launches % of category
#1 ▼1 Anthropic 0.10% 28.44%
#2 ▼1 OpenAI API Current page 0.06% 18.38%
#3 ▲3 Abacus.AI 0.06% 17.81%
#4 ▼1 Google Gemini API 0.04% 12.14%
#5 – One API 0.02% 6.70%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any AI API tool.OpenAI API is typically used alongside Anthropic rather than instead of it. All 152 in AI API →

Often used with

Tool Launches
HSTS 320
Google Search Console 256
Tailwind CSS 252
React 227
Next.js 223

Tools most often detected on the same launches as OpenAI API.

Recent launches we can show

1,111 of the 1,539 sites using OpenAI API are product launches we list individually. The other 428 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works

Dorak AI — Find the Work You Delivered but Never Billed Sep 1, 2026 HoodPools: Robinhood Chain pool scanner for tokenized stocks and memecoins Sep 1, 2026 Crypto Folio — The integrity-first research workspace Sep 1, 2026 PolymerHub — India's Plastic Polymer Engineering Knowledge Platform Sep 1, 2026 Education Screenshot of StayFocus, a launch using OpenAI API StayFocus Sep 1, 2026 · score 10.0 Productivity Screenshot of Practix, a launch using OpenAI API Practix Sep 1, 2026 · score 10.0 Education Screenshot of EAS Observe, a launch using OpenAI API EAS Observe Sep 1, 2026 · score 9.5 Developer Tools Screenshot of Love Languages: Learn Solo, a launch using OpenAI API Love Languages: Learn Solo Sep 1, 2026 · score 10.0 Screenshot of CopyThat, a launch using OpenAI API CopyThat Sep 1, 2026 · score 10.0 United States Productivity AmbiWrite Sep 1, 2026 Productivity Australian Livestreaming for Funerals & Events | Legacy Live Sep 1, 2026 Content Australian Livestreaming for Funerals & Events | Legacy Live Sep 1, 2026 Content

Showing the most recent 12 of 1,111.

The StackScope API serves all 1,539 sites using OpenAI API, filterable and exportable, from £15 a month.

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