You asked about Developer Tools

29 people built something like it. 1 is gone.

That is 3% of the ones whose fate we could settle, against 23% across the whole register.

Matching
29
Gone
3%
Median life
Acquired
0

Matching launches

checked 8 hours ago · 250 probed today
LaunchedWhat it wasToday
2025-01-01
The Javascript framework for building AI agents, from the Gatsby devs · mastra.ai
still up
2025-06-01
Crazy fast, open source infra for AI agents to use the Internet · kernel.sh
still up
2025-06-01
Compute substrate for AI agents · dedaluslabs.ai
still up
2025-06-01
Email Inboxes for AI Agents · agentmail.to
still up
2025-06-01
Tiny Edge AI For Tiny Devices · cactuscompute.com
still up
2025-01-01
The LLM Eval and Observability Platform for AI Quality · confident-ai.com
still up
2025-06-01
Making AI run fast on any hardware. · luminal.com
still up
2025-06-01
Hardware-Aware AI for Embedded Software Development · embedder.com
still up
2025-09-01
Real-time semantic search for Conversational AI · moss.dev
still up
2025-06-01
AI agents for E2E testing across mobile & web · autosana.ai
still up
2025-06-01
The E2E testing layer for AI-driven development · getlark.ai
still up
2025-01-01
An AI teammate that automatically updates your customer-facing docs · promptless.ai
still up
2025-06-01
Build production-ready apps with AI · modelence.com
still up
2025-06-01
Open source self-improving layer for AI agents · traceroot.ai
still up
2025-01-01
Open Source React.js Library for AI Chat · assistant-ui.com
still up
2025-09-01
AI FDE Engine that runs your engineering workflows · withrovr.com
gone
2025-01-01
We make mobile apps using AI. · a0.dev
still up
2025-09-01
Helping humans and AI agents understand massive codebases · sourcebot.dev
still up
2025-06-01
AI content manager that grows your company's online presence · vibeflow.ai
still up
2025-06-01
product lab. focused on personal ai and context. · nozomio.com
still up
2025-01-01
AWS for AI Agents · trytruffle.ai
still up
2025-06-01
AI for quantitative trading · lotas.ai
still up
2025-09-01
AI Agents for Platform Engineering · usekestrel.ai
still up
2025-09-01
Production Monitoring for AI agents · uselemma.ai
still up
2025-09-01
Find what's losing you customers and money in your AI agent and fix it · thecontextcompany.com
still up
2025-09-01
The Routing Layer for AI Agents · dari.dev
still up
2025-01-01
AI documentation engineer – test & autoimprove stale product docs · quantstruct.com
still up
2025-01-01
The world’s first AI energy developer · astroenergy.ai
still up
2025-01-01
Reimagining how Machines Learn · lucidic.ai
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.