You asked about Hard Tech
25 people built something like it. 4 are gone.
That is 18% of the ones whose fate we could settle, against 23% across the whole register. 3 were acquired.
| Launched | What it was | Today |
|---|---|---|
| 2019-01-01 | YCAlpaca API-first stock and crypto brokerage platform · alpaca.markets | still up |
| 2022-03-25 | flagright.com | still up |
| 2020-01-01 | YCBelvo Open Finance API platform for Latam. · belvo.com | still up |
| 2017-06-01 | Health enterprise API for data on doctors, insurance, costs, & quality · ribbonhealth.com | acquired |
| 2020-06-01 | YCDecentro API Platform for Banking Integrations (Plaid for India and APAC) · decentro.tech | still up |
| 2019-06-01 | Financial connectivity API for consumer liabilities · methodfi.com | still up |
| 2021-06-01 | YCMalga Malga is an API to accept payments with multiple payment providers · malga.io | still up |
| 2023-09-25 | crystaldoc.info | still up |
| 2020-01-01 | Crypto Exchange and Payment API Gateway · tiendacrypto.com | still up |
| 2014-06-01 | API platform for partners to issue branded debit and credit cards to… · aptopayments.com | acquired |
| 2023-03-01 | summarize.tech | unverified |
| 2020-06-01 | YCAtomic API that lets companies embed investment accounts into their services · atomicvest.com | still up |
| 2019-06-01 | YCRutter The Unified API for Business Financial Data · rutter.com | still up |
| 2020-01-01 | YCJunction API for at-home health data · junction.com | still up |
| 2020-06-01 | YCIncrease API-first banking for ambitious technology companies. · increase.com | still up |
| 2022-06-01 | YCInvofox Invofox is the document parsing and data extraction API for software… · invofox.com | still up |
| 2020-01-01 | YCRevenir First API solution for tax returns. · revenir.ai | still up |
| 2023-01-01 | YCScanbase The API for Diagnostic Test Analysis (COVID-19, FLU, RSV, STD,… · scanbase.com | still up |
| 2025-01-01 | YCBlindPay Stablecoin API for global payments · blindpay.com | still up |
| 2019-01-01 | YCFuse Unified API for financial data aggregators. · letsfuse.com | gone |
| 2018-01-01 | Point stores things you send over and over again and helps you re-use… · pointapi.com | gone |
| 2023-01-01 | YCTrigo Rent verification API for landlords and lenders · trigodata.com | acquired |
| 2026-01-01 | Drop-in Direct Billing SDK for In-App Purchases · zerosettle.io | still up |
| 2026-01-01 | YCGrade API for performance-based payroll · usegrade.com | still up |
| 2020-01-01 | A Global Payouts API for Startups · carbon.money | gone |
| 2019-06-01 | Api that let you connect all the restaurant tech services in Latam · mipos.dev | gone |
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.