Hackernews posts about YC S21

YC S21 is the 2021 class of Y Combinator, a well-known startup accelerator and investor that provides funding and support to early-stage companies.

1. Launch HN: Spine Swarm (YC S23) – AI agents that collaborate on a visual canvas (www.getspine.ai)
   109 points by a24venka 5 days ago | 69 comments
2. Show HN: DenchClaw – Local CRM on Top of OpenClaw (github.com)
   147 points by kumar_abhirup 9 days ago | 125 comments
3. Show HN: Star SDK – Fixing the 3 biggest annoyances with generated browser games (github.com)
   2 points by rzendacott 8 days ago | discuss
4. Happy Birthday YC/HN
   6 points by ellis0n 7 days ago | 4 comments
5. Show HN: Measuring brand share in AI answers – a Y Combinator case study (www.geovector.ai)
   4 points by roman10 22 days ago | 3 comments
6. Launch HN: Exa (YC S21) – The web as a database
   412 points by willbryk 11 months ago | 133 comments
7. Launch HN: GPT Driver (YC S21) – End-to-end app testing in natural language
   129 points by cschiller over 1 year ago | 82 comments
8. Launch HN: ASim (YC S21) – Mobile app that generates mobile apps
   90 points by dli123 12 months ago | 61 comments
9. Launch HN: Indy (YC S21) – A support app designed for ADHD brains (www.shimmer.care)
   85 points by christalwang 2 months ago | 93 comments
10. Show HN: Exa (YC S21) – embeddings search agent with >20x recall than Google (websets.exa.ai)
    28 points by willbryk about 1 year ago | 4 comments
11. WorkOS acquires Warrant (YC S21) (workos.com)
    9 points by grinich almost 2 years ago | discuss
12. Ask HN: Why is Meticulous (YC S21) still hiring to eliminate E2E tests?
    4 points by resiros over 1 year ago | 2 comments
13. Show HN: Hedgehog (YC S21) On-Chain MPC Self-Custody Automations (hedgehog.app)
    2 points by cadillion almost 2 years ago | 2 comments
14. Show HN: Numscript, a declarative language to model financial transactions (playground.numscript.org)
    202 points by superzamp over 1 year ago | 47 comments
15. Show HN: A mobile app that generates mobile apps in 30 secs
    10 points by dli123 over 1 year ago | 4 comments
16. Show HN: ASim – generate functional mobile apps instantly on your phone (asim.sh)
    10 points by dli123 over 1 year ago | discuss
17. Show HN: ASim – generate usable mobile apps instantly (asim.sh)
    5 points by dli123 over 1 year ago | discuss
18. Show HN: Syntro.io (syntro.io)
    4 points by maomorales 7 months ago | discuss
19. Sharing Economy Thrived with Consumers but Lags in Corporate World. Until Now
    2 points by Stephen_Roamr about 1 year ago | 1 comments
20. Show HN: YC Network Search – Use natural language to find YC people (sena.so)
    3 points by recmend 5 months ago | 1 comments
21. Launch HN: Cactus (YC S25) – AI inference on smartphones (github.com)
    123 points by HenryNdubuaku 6 months ago | 63 comments
22. Tell HN: When to apply to Y Combinator (YC S22 alum advice)
    4 points by artembugara almost 2 years ago | discuss
23. Launch HN: Airhart Aeronautics (YC S22) – A modern personal airplane
    738 points by n_ermosh over 1 year ago | 615 comments
24. Launch HN: Sorcerer (YC S24) – Weather balloons that collect more data
    365 points by tndl over 1 year ago | 172 comments
25. Launch HN: Silurian (YC S24) – Simulate the Earth
    338 points by rejuvyesh over 1 year ago | 141 comments
26. Launch HN: Haystack (YC S24) – Visualize and edit code on an infinite canvas (github.com)
    328 points by akshaysg over 1 year ago | 173 comments
27. Launch HN: Skyvern (YC S23) – open-source AI agent for browser automations (github.com)
    327 points by suchintan over 1 year ago | 74 comments
28. Launch HN: Undermind (YC S24) – AI agent for discovering scientific papers
    292 points by jramette over 1 year ago | 126 comments
29. Launch HN: Stack Auth (YC S24) – An Open-Source Auth0/Clerk Alternative (github.com)
    280 points by n2d4 over 1 year ago | 141 comments
30. Launch HN: Hyprnote (YC S25) – An open-source AI meeting notetaker
    270 points by yujonglee 8 months ago | 180 comments
31. Launch HN: Muddy (YC S19) – Multiplayer browser for getting work done
    252 points by lele0108 almost 2 years ago | 111 comments
32. Launch HN: Morph (YC S23) – Apply AI code edits at 4,500 tokens/sec
    217 points by bhaktatejas922 8 months ago | 185 comments
33. Launch HN: Roame (YC S23) – Flight search engine for your credit card points
    192 points by zman0225 over 1 year ago | 130 comments
34. Launch HN: CodeViz (YC S24) – Visual maps of your codebase in VS Code
    189 points by LiamPrevelige over 1 year ago | 89 comments
35. Launch HN: Deepsilicon (YC S24) – Software and hardware for ternary transformers
    189 points by areddyyt over 1 year ago | 79 comments