YC S26 startups launched on Hacker News

Explore 45 projects from Y Combinator's Summer 2026 batch that launched or appeared on Hacker News.

YC S26 startups launched on Hacker News

#1 Launch HN: ProvenMetal (YC S26) delivers circuit boards in days instead of weeks

#2 Launch HN: Bullet (YC S26) – A Faster Coding Agent

#3 Launch HN: Context.dev (YC S26) – API to get structured data from any website

#4 Launch HN: Speko (YC S26) – OpenRouter for Voice AI

#5 Launch HN: Bloomy (YC S26) – AI-powered mastery learning for K-12

#6 Launch HN: Screenpipe (YC S26) – Record how you work and turn that into agents

#7 Launch HN: OneCLI (YC S26) – OSS sandboxed agent harness for teams

#8 Launch HN: Agnost AI (YC S26) – Extract user feedback from agent conversations

#9 Launch HN: Rise Reforming (YC S26) – Turning Waste Gases into Valuable Chemicals

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#10 Launch HN: machine0 (YC S26) – Persistent CPU and GPU VMs from the CLI

#11 Launch HN: Hoplite (YC S26) – Effortlessly deploy cloud coding agents

Don't miss when the next Dropbox or Stripe launches

#12 Launch HN: Prized (YC S26) – Let non-engineer staff build secure internal tools

#13 Launch HN: Stoa Markets (YC S26) – A Marketplace for GPUs and AI Servers

#14 Launch HN: Tokenless (YC S26) – Automatic model switching to save money

#15 Launch HN: HyperProbe (YC S26) – Agents that do read-only debugging in prod

#16 Launch HN: Vendo (YC S26) – Let users build features on top of your product

#17 Launch HN: Traceforce (YC S26) – Company-wide security monitoring for AI apps

#18 Launch HN: Coasty (YC S26) – An API for computer-use agents

#19 Launch HN: Risklytics (YC S26) – Insurance brokerage for frontier tech companies

#20 Launch HN: EdotEnv (YC S26) – Quant Trading RL Envs to Teach LLMs Research

#21 Applied Electrodynamics (YC S26) A new kind of camera that can see through walls

#22 YC S26 Application: "Attach a coding agent session you're particularly proud of"

#23 Show HN: Vendo (YC S26) – Let your users add their own features to your product

#24 Show HN: CodeAlmanac – Karpathy-style codebase wiki from your conversations

#25 Show HN: CodeAlmanac – Self-updating wiki for your coding agent (local, Apache)

#26 Supabase (YC S20) – An open source Firebase alternative

#27 Launch HN: Airhart Aeronautics (YC S22) – A modern personal airplane

#28 Launch HN: Heimdal (YC S21) – Carbon neutral cement

#29 Fig (YC S20) – Adds IDE-style autocomplete to your existing terminal

#30 Launch HN: Fig (YC S20) – Autocomplete for the Terminal

#31 Launch HN: Lago (YC S21) – Open-source usage-based billing

#32 Launch HN: Twenty.com (YC S23) – Open-source CRM

#33 Launch HN: Exa (YC S21) – The web as a database

#34 Launch HN: CodeCrafters (YC S22) – Practice writing complex software

#35 Launch HN: Slip (YC S21) – Build and sell interactive programming courses

#36 Launch HN: Micro Meat (YC S21) – Technology for scaling cultivated meat

#37 Launch HN: BlackOakTV (YC S21) – Netflix for black people

#38 Launch HN: Sorcerer (YC S24) – Weather balloons that collect more data

#39 Launch HN: QuestDB (YC S20) – Fast open source time series database

#40 Launch HN: Hotswap (YC S21) – Easily migrate customers away from competitors

#41 Launch HN: Silurian (YC S24) – Simulate the Earth

#42 Introducing Sketch: A Playground for React Native from Expo (YC S16)

#43 Launch HN: Haystack (YC S24) – Visualize and edit code on an infinite canvas

#44 Launch HN: Skyvern (YC S23) – open-source AI agent for browser automations

#45 Launch HN: Enombic (YC S20) – Create your own stock indexes

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