You asked about Cryptocurrency
16 people built something like it. 5 are gone.
That is 33% of the ones whose fate we could settle, against 23% across the whole register. 1 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2018-01-01 | The gold standard in cryptocurrency portfolio tracking and taxes · cointracker.com | still up |
| 2021-01-01 | YCHapi Stocks and cryptos trading app with zero commissions and no minimums… · hapi.trade | still up |
| 2018-06-01 | Cryptocurrency infrastructure for Africa. · helicarrier.studio | still up |
| 2022-06-01 | YCThera AI-Native Finance OS · getthera.com | still up |
| 2023-01-01 | YCInfinia Move money programmatically · infiniaweb.com | still up |
| 2016-06-01 | Abundance Labs incubates and builds alternative currency marketplace… · abundancelabs.io | gone |
| 2022-01-01 | The NFT exchange for traders · nftscoring.com | gone |
| 2022-01-01 | YCDecent Cross-chain routing + trading APIs. One-click transactions with any… · decent.xyz | acquired |
| 2026-01-01 | YCInstinct Trade your instinct · instinct.xyz | still up |
| 2021-06-01 | YCHedgehog Cryptocurrency Robo-adviser. Buy. Balance. Relax. · hedgehog.app | gone |
| 2022-06-01 | Palantir for Web3 · blockscope.co | still up |
| 2018-01-01 | YCHexel Create a cryptocurrency for your community. · onhexel.com | gone |
| 2018-01-01 | YCBen The easiest way to learn about, buy, and store cryptocurrency. · ben.co | gone |
| 2025-01-01 | YCKarsa Stablecoin neobank for emerging markets · gokarsa.com | still up |
| 2022-01-01 | YCAYC Fund AI-native crypto hedge fund · aycfund.com | still up |
| 2023-01-01 | YCKV Cash KV Cash, a blockchain where contracts can finally think · kv.cash | 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.