You asked about APIs

33 people built something like it. 2 are gone.

That is 9% of the ones whose fate we could settle, against 23% across the whole register. 10 were acquired.

Matching
33
Gone
9%
Median life
Acquired
10

Matching launches

checked 10 hours ago · 250 probed today
LaunchedWhat it wasToday
2011-06-01
Software and APIs to collect, clean, and control customer data. · segment.com
acquired
2016-01-01
Protects organizations from getting breached through their APIs. · salt.security
still up
2021-06-01
YCExa
Web search rebuilt for LLMs · exa.ai
still up
2021-01-01
AI Document Understanding API · mindee.com
still up
2015-01-01
eCommerce building blocks through simple APIs for websites & apps.… · moltin.com
acquired
2024-09-01
Real-time B2B data via simple APIs · crustdata.com
still up
2022-01-01
Healthcare Price Transparency APIs and Data Products · serifhealth.com
still up
2024-01-01
Card issuer processor and banking stack for businesses in Sub-… · miden.co
still up
2022-01-01
Wingback provides tools and APIs for SaaS pricing and packaging. · wingback.com
gone
2014-01-01
Natural Language for Developers --Wit is an API that makes it easy… · wit.ai
acquired
2014-01-01
Create APIs where they don't exist. With kimono you can quickly… · kimonolabs.com
acquired
2023-06-01
The freshest data APIs for AI sales, recruiting, & growth products · fiber.ai
still up
2018-06-01
Developer-friendly and enterprise-grade APIs for financial market… · alphavantage.co
still up
2020-01-01
Analyze, act, and automate across systems · flowglad.com
still up
2022-01-01
Customer support tool purpose-built for companies that sell APIs · fogbender.com
still up
2022-01-01
Cross-chain routing + trading APIs. One-click transactions with any… · decent.xyz
acquired
2018-06-01
Making APIs Developer-friendly · useoptic.com
acquired
2024-01-01
Generate fast, reliable APIs for any platform · integuru.com
still up
2025-09-01
AI that creates and runs ads, end-end · trylapis.com
still up
2021-01-01
New-Age White Label Community Platform SDKs and APIs for Games,… · pensil.in
gone
2012-01-01
Banking and Payment Platform APIs. Exited October 2014. · angel.co
acquired
2018-06-01
GraphQL API to connect all of the internet's APIs. Join us at Netlify! · onegraph.com
acquired
2017-06-01
Natural language processing APIs for developers. · plasticity.ai
acquired
2026-06-01
APIs for robotics data teams to verify data quality for model training · hebbianrobotics.com
still up
2026-01-01
Agentic Payments for APIs · orthogonal.com
still up
2026-01-01
Turning all software into agent-first APIs · zatanna.ai
still up
2023-01-01
Programmable API gateway that makes APIs cacheable · trysuperapi.com
still up
2025-09-01
API for parsing multimodal unstructured data · unsiloed.ai
still up
2026-06-01
We give AI agents realtime web context via API · context.dev
still up
2024-09-01
Empowering Physical Therapists to Go Independent · joinhealthspark.com
still up
2012-06-01
Insurance Billing APIs for Healthcare Businesses · eligible.com
still up
2013-06-01
Banking APIs; acquired by Silicon Valley Bank in August 2015 · standardtreasury.com
acquired
2021-01-01
The email API built for product teams · usewaypoint.com
still up

How this compares

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.