You asked about Marketplace
22 people built something like it. 2 are gone.
That is 10% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2019-01-01 | YCLanded Generative AI for frontline worker hiring · gotlanded.com | still up |
| 2020-01-01 | YCTaiv AI-powered tech that makes business TV smarter, engaging, and… · taiv.tv | still up |
| 2020-01-01 | AI-enabled automation of diagnostic radiology workflow and reporting. · synapsica.com | gone |
| 2015-06-01 | AI-assisted electronics design · snapmagic.com | still up |
| 2023-01-01 | YC222 the AI social facilitator for offline human to human interactions · 222.place | still up |
| 2023-06-01 | AI enabled marketplace matching trucks with jobs · fleetworks.ai | still up |
| 2022-01-01 | YCKaso AI group purchasing for restaurants · kaso.ai | still up |
| 2022-01-01 | YCLumina AI+human powered automation on job-community platform with 1.5M… · lumibot.com | still up |
| 2021-01-01 | Dramatically better search and ads for marketplaces · promoted.ai | acquired |
| 2022-01-01 | YCLizza AI-assitant for managing creator-brand partnerships · lizza.link | still up |
| 2025-09-01 | YCSciloop Expert STEM reasoning data for frontier AI labs. · sciloop.dev | still up |
| 2025-06-01 | YCLiva AI Audio & Video Data · theliva.ai | still up |
| 2026-06-01 | YCStoa The market behind AI hardware. · stoaexchange.com | still up |
| 2023-06-01 | The API for LLM tool use · opentools.com | still up |
| 2021-01-01 | YCClear The unbiased AI and data layer for skin health. · getclearapp.com | still up |
| 2025-01-01 | YCRetrofit A vintage marketplace curated by AI · retrofit.shop | still up |
| 2022-06-01 | YCFlatX AI-Powered Rental Platform for Urban Renters · flatx.co | still up |
| 2017-06-01 | First agentic AI-powered community for 1 billion people with criminal… · commissary.club | gone |
| 2023-01-01 | YCPair AI Reimagining education with short form video and AI · pairai.com | still up |
| 2026-06-01 | YCTsenta AI career agent that finds matching jobs & applies on your behalf · tsenta.com | still up |
| 2026-01-01 | YCReframe AI-native, hardware procurement marketplace · usereframe.ai | still up |
| 2026-06-01 | YCPalisade AI-native sales agents that run marketplaces · palisade.run | still up |
How this compares
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.