You asked about API
177 people built something like it. 0 are gone.
That is 0% of the ones whose fate we could settle, against 23% across the whole register.
| Launched | What it was | Today |
|---|---|---|
| 2014-01-01 | YCAlgolia A developer-friendly and enterprise-grade search API. · algolia.com | still up |
| 2014-06-01 | YCCheckr People infrastructure for the future of work · checkr.com | still up |
| 2012-06-01 | YCZapier The easiest way to automate your work. · zapier.com | still up |
| 2016-06-01 | YCBird The world’s largest omnichannel communications platform · bird.com | still up |
| 2022-01-01 | Data driven neobank for SMBs in LATAM · kapital.mx | still up |
| 2015-06-01 | Digital trade finance and B2B commerce company · dripcapital.com | still up |
| 2016-01-01 | Protects organizations from getting breached through their APIs. · salt.security | still up |
| 2019-01-01 | YCVerto Cross-Border Payments and FX Simplified · vertofx.com | still up |
| 2018-06-01 | Payment operations tools for money movement. · moderntreasury.com | still up |
| 2021-01-01 | YCGigs The OS for Embedded Telecom · gigs.com | still up |
| 2019-01-01 | YCAlpaca API-first stock and crypto brokerage platform · alpaca.markets | still up |
| 2016-01-01 | YCDeepgram Building foundational AI for speech transcription and understanding. · deepgram.com | still up |
| 2021-01-01 | Tools & infra to build and scale high-quality blockchain applications. · quicknode.com | still up |
| 2022-01-01 | YCNumida Working capital for African micro businesses · numida.com | still up |
| 2018-01-01 | Embedded banking software platform and marketplace · treasuryprime.com | still up |
| 2020-01-01 | YCBelvo Open Finance API platform for Latam. · belvo.com | still up |
| 2020-06-01 | Power commerce photography with generative AI · photoroom.com | still up |
| 2016-01-01 | YCMux Video infrastructure for developers · mux.com | still up |
| 2022-01-01 | Identity Verification API for Emerging Markets · prembly.com | still up |
| 2018-01-01 | YCOpenSea This isn't just a marketplace; we're shaping the future of digital… · opensea.io | still up |
| 2021-06-01 | YCExa Web search rebuilt for LLMs · exa.ai | still up |
| 2020-06-01 | YCFinch Finch is the Employment Data Platform · tryfinch.com | still up |
| 2021-06-01 | YCAnakin One API to get clean data from any website for your AI agents at scale · anakin.io | still up |
| 2021-01-01 | YCEnode Energy Orchestration Platform · enode.com | still up |
| 2017-01-01 | Document AI. One API Call. · veryfi.com | still up |
| 2017-06-01 | The best way to build Voice AI apps · assemblyai.com | still up |
| 2021-01-01 | YCMindee AI Document Understanding API · mindee.com | still up |
| 2020-06-01 | YCDecentro API Platform for Banking Integrations (Plaid for India and APAC) · decentro.tech | still up |
| 2018-06-01 | YCDuffel The complete toolkit to sell travel. · duffel.com | still up |
| 2017-01-01 | YCOneFin Shopify for Financial Services · onefin.in | still up |
| 2019-06-01 | Financial connectivity API for consumer liabilities · methodfi.com | still up |
| 2021-01-01 | YCVapi Voice AI for developers. · vapi.ai | still up |
| 2021-06-01 | YCMalga Malga is an API to accept payments with multiple payment providers · malga.io | still up |
| 2021-01-01 | YCHapi Stocks and cryptos trading app with zero commissions and no minimums… · hapi.trade | still up |
| 2023-06-01 | Helping businesses in emerging markets make pay their international… · capimoney.com | still up |
| 2022-06-01 | YCTailor Headless ERP for retail operations · tailor.tech | still up |
| 2019-01-01 | YCOverview Reshaping industrial quality with AI, hardware, and software · overview.ai | still up |
| 2022-01-01 | Unleashing the potential of DNA and RNA based therapies using AI · whitelabgx.com | still up |
| 2020-01-01 | Crypto Exchange and Payment API Gateway · tiendacrypto.com | still up |
| 2021-06-01 | YCCoast Demo Platform for API-First Companies · trycoast.com | still up |
| 2019-06-01 | YCBanner Banner makes software for CRE owners to manage capital spend · withbanner.com | still up |
| 2021-06-01 | YCPluggy Plaid for Brazil: we allow developers to access users' financial data · pluggy.ai | still up |
| 2020-01-01 | The API to get recordings, transcripts, and metadata from meetings · recall.ai | still up |
| 2022-01-01 | Prevent Fraud and Onboard Users Faster · dojah.io | still up |
| 2024-09-01 | Real-time B2B data via simple APIs · crustdata.com | still up |
| 2022-06-01 | Healthcare data infrastructure for next generation care delivery. · metriport.com | still up |
| 2023-01-01 | YCEscape Offensive security for the teams that are 100x outnumbered · escape.tech | still up |
| 2018-01-01 | Delivering RNA therapies. · sixfold.bio | still up |
| 2022-01-01 | YCTheneo Stripe-like API Docs in just a few clicks · theneo.io | still up |
| 2022-01-01 | Working capital for Brazilian restaurants · pantorepay.com.br | still up |
| 2020-06-01 | YCAtomic API that lets companies embed investment accounts into their services · atomicvest.com | still up |
| 2021-01-01 | API for developers and AIs to access health data · tryterra.co | still up |
| 2020-06-01 | YCSeam API for IoT Devices · seam.co | still up |
| 2019-06-01 | YCRutter The Unified API for Business Financial Data · rutter.com | still up |
| 2020-01-01 | YCHandoff AI estimator & agent for remodelers. · handoff.ai | still up |
| 2022-06-01 | YCKombo Unified API for HR, payroll and recruiting software · kombo.dev | still up |
| 2022-01-01 | Healthcare Price Transparency APIs and Data Products · serifhealth.com | still up |
| 2020-06-01 | Kernal is creating mRNA 2.0 therapies that work in specific cells · kernalbio.com | still up |
| 2022-06-01 | YCMedplum API first electronic health record (EHR) that is open source · medplum.com | still up |
| 2020-01-01 | YCJunction API for at-home health data · junction.com | still up |
How this compares
Older launches have had longer to die, so this slope is expected. A year that broke it would mean something is wrong with the checking.
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.