Filtered view
33 people built something like it. 10 are gone.
That is 36% of the ones whose fate we could settle, against 23% across the whole register. 5 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2019-01-01 | YCAlpaca API-first stock and crypto brokerage platform · alpaca.markets | still up |
| 2021-01-01 | Tools & infra to build and scale high-quality blockchain applications. · quicknode.com | still up |
| 2018-01-01 | Security auditing for Web3 · quantstamp.com | still up |
| 2014-06-01 | YCSFOX Crypto-currency trading platform. · sfox.com | still up |
| 2020-01-01 | Crypto Exchange and Payment API Gateway · tiendacrypto.com | still up |
| 2022-01-01 | YCMagna Carta for Web3: token vesting and DeFi investment management. · magna.so | acquired |
| 2022-06-01 | YCWeltio First LatAm W3 WealthTech for AutoInvesting in securities & crypto · weltio.com | gone |
| 2021-01-01 | YCStriga Compliant Crypto and Banking Infrastructure · striga.com | acquired |
| 2019-06-01 | YCMultis Accounting & Treasury Management Software for Web3 Teams · multis.com | gone |
| 2017-06-01 | The easiest way to buy 74k+ crypto tokens with USD · dharma.io | acquired |
| 2022-01-01 | YCCypher Crypto Neo-Bank (WhatsApp moment for bank accounts) · cypherhq.io | still up |
| 2018-01-01 | YCSecured Tools for Sneaker, NFT & web3 investors · secured.community | gone |
| 2019-01-01 | YCMudrex India's largest crypto investing paltform · mudrex.com | still up |
| 2022-01-01 | YCPoko Seamless Fiat Payments for Web3 · pokoapp.xyz | still up |
| 2021-06-01 | The Trading Terminal For Crypto Traders · gethypertrader.com | still up |
| 2022-01-01 | The NFT exchange for traders · nftscoring.com | gone |
| 2023-01-01 | YCKoywe Crypto On and Off Ramp for Latam · koywe.com | still up |
| 2021-06-01 | YCCoinrule Coinrule Automates Your Crypto and Stock Investments · coinrule.com | still up |
| 2026-01-01 | Low-latency execution across crypto, prediction, and tokenized assets · sequencemkts.com | still up |
| 2021-06-01 | YCSatsuma Reliable blockchain indexing & querying for web3 engineering teams. · satsuma.xyz | acquired |
| 2023-06-01 | YCGlide Crypto Deposits, Wallet Funding, and Pay-with-crypto Infra · buildwithglide.com | acquired |
| 2022-06-01 | Palantir for Web3 · blockscope.co | still up |
| 2022-06-01 | YCStackup Stackup helps businesses manage their crypto assets. · stackup.fi | still up |
| 2022-01-01 | YCBifrost Wills and Estate Management for Crypto · hapi.finance | gone |
| 2021-01-01 | Maker of consumer crypto apps: Launchcaster, Frameboard, Maindrop · launchcaster.xyz | gone |
| 2022-06-01 | Decentralized, anonymous, and accountable identity on Web3. · notebooklabs.xyz | gone |
| 2022-06-01 | YCLyra Spend crypto anywhere online · paywithlyra.com | still up |
| 2022-01-01 | YCCashmere Crypto wallet for web3 startups · cashmere.finance | gone |
| 2021-06-01 | YCFilta The Face Filter NFT Marketplace · getfilta.com | still up |
| 2021-01-01 | The solution for fine-grained access control in web3 · slashauth.com | gone |
| 2022-06-01 | YCPayfura Global payment gateway to buy/sell crypto · payfura.com | gone |
| 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.