You asked about Web Development
52 people built something like it. 9 are gone.
That is 19% of the ones whose fate we could settle, against 23% across the whole register. 5 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2022-01-01 | We make Orca, MIT open source terminal-based agent orchestrator · onorca.dev | still up |
| 2025-01-01 | Open Source React.js Library for AI Chat · assistant-ui.com | still up |
| 2022-06-01 | AI Models for GIS · buntinglabs.com | still up |
| 2023-06-01 | YCRepaint Build a website by chatting with AI · repaint.com | still up |
| 2016-06-01 | YCScale AI Data-centric infrastructure to accelerate the development of AI · scale.com | still up |
| 2022-10-20 | durable.com | still up |
| 2022-11-13 | podcast.adobe.com | still up |
| 2023-04-05 | quadratichq.com | still up |
| 2023-03-28 | klavier.ai | gone |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2022-03-15 | zipy.ai | still up |
| 2023-10-30 | logopictureai.com | unverified |
| 2022-10-06 | durable.co | moved |
| 2022-06-01 | YCCODEXA AI Agent runs the entire international trade operation · codexa.com.br | still up |
| 2017-01-01 | YCScribe Scribe is an AI based Sales Development Representative that you can… · tryscribe.com | acquired |
| 2024-06-01 | YCSepal AI Data Development for Advanced AI · sepalai.com | acquired |
| 2019-06-01 | YCRamen VR Ramen VR is transforming game development with advanced XR + AI tools. · ramenvr.com | still up |
| 2023-12-23 | futurehurry.com | gone |
| 2023-05-31 | meoweler.com | still up |
| 2026-08-25 | keenable.ai | unverified |
| 2023-07-09 | landingsite.ai | still up |
| 2023-03-23 | trainengine.ai | still up |
| 2023-09-28 | semiform.ai | still up |
| 2023-04-19 | usedream.app | unverified |
| 2021-06-01 | AI-Powered Business Development for Scientific Organizations · firstignite.com | acquired |
| 2024-06-01 | YCSpur Spur is your AI QA Engineer. Test your websites with natural language. · spurtest.com | still up |
| 2023-03-29 | mighil.com | still up |
| 2023-04-26 | codedesign.ai | still up |
| 2023-05-07 | chabotix.com | unverified |
| 2023-01-23 | freyja.software | still up |
| 2026-08-31 | raq.com | unverified |
| 2022-06-01 | YCSuperbar Sales AI for your Website · superbar.ai | still up |
| 2023-06-01 | Building the AI-powered marketing ops platform that turns website… · withsurface.com | still up |
| 2023-10-04 | thesamur.ai | unverified |
| 2025-06-01 | YCEmbedder Hardware-Aware AI for Embedded Software Development · embedder.com | still up |
| 2020-01-01 | Build & launch your website in minutes with AI · typedream.com | acquired |
| 2023-07-18 | chatbotgen.com | still up |
| 2023-12-11 | statespotlight.com | unverified |
| 2023-06-01 | Open source GenAI development platform · flowiseai.com | acquired |
| 2023-04-14 | typegenie.it | gone |
| 2025-01-01 | YCNitrode Frontier AI research to advance game development · nitrode.com | still up |
| 2025-06-01 | YCLark The E2E testing layer for AI-driven development · getlark.ai | still up |
| 2023-08-02 | feedbase.co | gone |
| 2025-06-01 | YCAutosana AI agents for E2E testing across mobile & web · autosana.ai | still up |
| 2023-11-07 | booknote.cloud | gone |
| 2023-07-09 | biscuits.ai | gone |
| 2023-07-10 | researchinenglish.com | still up |
| 2021-06-01 | Web infra for AI agents · hyperbrowser.ai | still up |
| 2026-06-01 | AI cybersecurity for financial institutions' digital assets · verdictmachine.com | still up |
| 2024-01-01 | AI Website platform that grows revenue automatically · ion.design | still up |
| 2023-01-01 | YCAdri AI Your AI Partner for SAP Development · getadri.ai | still up |
| 2022-06-01 | AI Sales Rep for Website Intent Signals · penguinai.app | gone |
| 2023-06-01 | YCVango AI Development platform that makes it 10x easier to improve visual models · vango.ai | gone |
| 2024-06-01 | ideate.xyz is an AI-powered 3D art suite on the web · ideate.xyz | still up |
| 2024-06-01 | Turn any website into an API. · expand.ai | still up |
| 2025-09-01 | YCThe Hog Real-time web intelligence API for AI agents and GTM teams · thehog.ai | still up |
| 2022-06-01 | AI powered web & mobile automation · dev-tools.ai | gone |
| 2026-09-01 | YCORO AI Continuously improving evals for agentic commerce · oroagents.com | still up |
| 2026-06-01 | We give AI agents realtime web context via API · context.dev | still up |
| 2022-01-01 | YCAYC Fund AI-native crypto hedge fund · aycfund.com | still up |
How this compares
Y Combinator reports its own outcomes, including acquisitions. The other two are judged by asking the domain, so they are not measured the same way and are never averaged together.
The register re-probes every domain it holds. Some that answered last month stop answering. We send that list — what went quiet, and what it was — once a month. Nothing else.
How this was made. Show HN entries are every post from 2021 to 2023 with at least five points that linked to its own domain; code hosts and free hosting are excluded, because a repository outlives the effort behind it. Product Hunt entries needed 100 votes — a far higher bar, so they are the promoted top slice rather than a like-for-like sample. Both are judged by asking the domain whether it still answers: gone means it no longer resolves, refuses the connection, serves a parking page, or says plainly that it shut down. An HTTP error is not counted as gone — a server answering 404 is one somebody still pays for, and an audit of 25 gone-calls found two such sites alive with only a moved homepage. Y Combinator entries use the status YC publishes itself, which is why only those can say acquired. Squatted domains — a lapsed name now serving somebody else's site — are not detected, so these figures run slightly low.