Hackernews posts about YC W21

YC W21 is Y Combinator's Winter 2021 batch of startup companies.

1. Show HN: Fence – Jiminy Cricket for AI coding agents
   1 points by andriosr 25 days ago | discuss
2. Launch HN: Unlayer (YC W22) – Add email and document builders to your app (unlayer.com)
   56 points by adeelraza 10 days ago | 40 comments
3. Show HN: Halo – open-source, tamper-evident runtime evidence for AI agents (github.com)
   37 points by brian_kuan 25 days ago | 23 comments
4. Launch HN: Parsagon (YC W21) – AI for public affairs and government relations
   73 points by sand1929 over 1 year ago | 53 comments
5. Show HN: Cost.dev (YC W21) – making agents cost-aware and cheaper to call (cost.dev)
   48 points by akh about 2 months ago | 29 comments
6. Sentry Acquires Emerge Tools (YC W21) (www.businessinsider.com)
   7 points by walz about 1 year ago | 1 comments
7. Infracost (YC W21) Has Raised a $15M Series A: Shifting FinOps Left (www.infracost.io)
   3 points by hkh 9 months ago | 1 comments
8. Sentry Acquires Emerge Tools (YC W21) (www.emergetools.com)
   2 points by jshchnz about 1 year ago | discuss
9. InpharmD (YC W21) Is Hiring – Senior Ruby on Rails Engineer (Rails 8, Ruby 3) (inpharmd.com)
   1 points by tulasichintha 4 months ago | 1 comments
10. Jiga (YC W21) raises $12M to solve $1T mechanical parts sourcing problem (www.axios.com)
    1 points by grmmph 9 months ago | discuss
11. Wyndly (YC W21) Grew a Allergy Business on Reddit and YouTube (www.inc.com)
    1 points by ahstilde 12 months ago | discuss
12. Gigs (YC W21), an 'MVNO in a box', raises $73M Series B (techcrunch.com)
    1 points by chrisjarling over 1 year ago | discuss
13. Vapi (YC W21) Raises $20M to Bring Voice AI to Enterprise (blog.vapi.ai)
    1 points by jordandearsley over 1 year ago | discuss
14. Somos Internet (YC W21) – 100 Gbps Fiber Internet for $80/month? [video] (www.youtube.com)
    1 points by Ajedi32 almost 2 years ago | discuss
15. Show HN: See the carbon impact of your cloud as you code (dashboard.infracost.io)
    67 points by hkh 6 months ago | 31 comments
16. Show HN: A simple Hackernews client for iOS and Android (github.com)
    40 points by trevor-e over 1 year ago | 5 comments
17. Show HN: See the carbon impact of your cloud as you code
    11 points by hkh 8 months ago | 3 comments
18. RocketSDR – Are they faking being backed with YC?
    4 points by blendertom over 1 year ago | 3 comments
19. Show HN: TalkToSales makes websites voice-controlled (talktosales.com)
    2 points by kolchinski over 1 year ago | discuss
20. Show HN: YC Network Search – Use natural language to find YC people (sena.so)
    3 points by recmend 10 months ago | 1 comments
21. Launch HN: Double (YC W24) – Index Investing with 0% Expense Ratios
    443 points by jjmaxwell4 over 1 year ago | 413 comments
22. Launch HN: Tweeks (YC W25) – Browser extension to deshittify the web (www.tweeks.io)
    351 points by jmadeano 9 months ago | 213 comments
23. Launch HN: A0.dev (YC W25) – React Native App Generator
    263 points by sethburster over 1 year ago | 97 comments
24. Launch HN: Browser Use (YC W25) – open-source web agents (github.com)
    259 points by MagMueller over 1 year ago | 100 comments
25. Launch HN: Onyx (YC W24) – Open-source chat UI
    254 points by Weves 8 months ago | 160 comments
26. Launch HN: RunAnywhere (YC W26) – Faster AI Inference on Apple Silicon (github.com)
    240 points by sanchitmonga22 5 months ago | 153 comments
27. Launch HN: Trellis (YC W24) – AI-powered workflows for unstructured data
    234 points by macklinkachorn almost 2 years ago | 116 comments
28. Launch HN: K-Scale Labs (YC W24) – Open-Source Humanoid Robots
    233 points by codekansas about 1 year ago | 95 comments
29. Launch HN: Integuru (YC W24) – Reverse-engineer internal APIs using LLMs (github.com)
    218 points by richardzhang almost 2 years ago | 83 comments
30. Launch HN: Maritime Fusion (YC W25) – Fusion Reactors for Ships
    216 points by jtcohen over 1 year ago | 261 comments
31. Launch HN: Miyagi (YC W25) turns YouTube videos into online, interactive courses
    215 points by bestwillcui about 1 year ago | 120 comments
32. Launch HN: Adam (YC W25) – Open-Source AI CAD (github.com)
    215 points by zachdive about 1 month ago | 97 comments
33. Launch HN: Langfuse (YC W23) – OSS Tracing and Workflows to Improve LLM Apps (github.com)
    215 points by mdeichmann over 1 year ago | 61 comments