You asked about B2B

43 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.

Matching
43
Gone
0%
Median life
Acquired
0

Matching launches

checked 9 hours ago · 250 probed today
LaunchedWhat it wasToday
2014-01-01
A developer-friendly and enterprise-grade search API. · algolia.com
still up
2022-01-01
Identity Verification API for Emerging Markets · prembly.com
still up
2017-01-01
Document AI. One API Call. · veryfi.com
still up
2021-06-01
One API to get clean data from any website for your AI agents at scale · anakin.io
still up
2021-01-01
AI Document Understanding API · mindee.com
still up
2020-06-01
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
Malga is an API to accept payments with multiple payment providers · malga.io
still up
2021-06-01
Demo Platform for API-First Companies · trycoast.com
still up
2020-01-01
The API to get recordings, transcripts, and metadata from meetings · recall.ai
still up
2020-06-01
API for IoT Devices · seam.co
still up
2022-01-01
Stripe-like API Docs in just a few clicks · theneo.io
still up
2020-06-01
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
2019-06-01
The Unified API for Business Financial Data · rutter.com
still up
2022-06-01
Unified API for HR, payroll and recruiting software · kombo.dev
still up
2024-09-01
The legal back-office for European founders - the incorporation API… · beglaubigt.de
still up
2022-01-01
SDK for adding an agent and human governance layer to your product · velt.dev
still up
2022-06-01
Invofox is the document parsing and data extraction API for software… · invofox.com
still up
2021-01-01
Low latency API to run and deploy ML models · mystic.ai
still up
2023-01-01
Call every LLM API like it's OpenAI [100+ LLMs] · litellm.ai
still up
2023-06-01
Open Source AI Agent to automate browser workflows via an API · skyvern.com
still up
2024-06-01
Create professional videos in minutes with AI, online or via API · videogen.io
still up
2023-01-01
A single API for all your integrations · nango.dev
still up
2020-01-01
Fullstack API and management platform for dashboards and reporting · quill.co
still up
2026-06-01
API-first tax engine for CPA firms and developers · lucaiq.com
still up
2025-09-01
API for unlimited, durable, real-time streams · s2.dev
still up
2026-06-01
OpenRouter for Voice AI: one API, every call on the best speech model · speko.ai
still up
2025-09-01
Build an API to interact with any website. · parse.bot
still up
2023-06-01
The API for LLM tool use · opentools.com
still up
2022-01-01
API for shared embeddable web browsers · hyperbeam.com
still up
2022-06-01
The API to search, scrape, and interact with the web at scale. 🔥 · firecrawl.dev
still up
2024-06-01
API & SDK for RCS (the next-generation of texting) · pinnacle.sh
still up
2025-01-01
We turn complex API integrations into drop‑in full‑stack libraries · rejot.dev
still up
2022-01-01
Open-source API & UI test automation · karatelabs.io
still up
2022-06-01
AI messaging API for smarter, faster communication. · apps.apple.com
still up
2025-09-01
API for parsing multimodal unstructured data · unsiloed.ai
still up
2024-06-01
Turn any website into an API. · expand.ai
still up
2026-06-01
API sandboxes, built for AI agents · archal.ai
still up
2023-01-01
Programmable API gateway that makes APIs cacheable · trysuperapi.com
still up
2025-09-01
Real-time web intelligence API for AI agents and GTM teams · thehog.ai
still up
2026-06-01
We give AI agents realtime web context via API · context.dev
still up
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.