Mark Nour

@beratcelik0 Congrats guys!

A $100M GPU deal doesn't close on an exchange. It closes in a group chat, off a voice note. Today we're launching Stoa: an RFQ marketplace for GPUs. $300M+ in RFQs in our first month. Post what you need. Vetted dealers bid blind. Firm quotes within 48 hours. We handle KYB, contracts, shipping, and settlement. Every RFQ, firm quote, award, and settlement runs through Stoa, so we see what hardware trades for. That history becomes prices buyers, sellers, and lenders can mark, finance, and hedge against. @stoaexchange

@ansh_chokshi @mireyehq @ycombinator Congrats Ansh, this is so cool!

Today we are launching @mireyehq with @ycombinator The easiest way to build agentic applications for the physical world. AI agents are starting to act in the real world, but they can't reliably understand it. Mireye is one API and MCP that connects agents to the physical world: data, enrichment, tools, and signals that power them to make decisions. One line of code to make your agents street smart. mireye.com

@heythereitsanis Such a cool video and product

We just revolutionized a trillion dollar industry. Introducing GutGutGoose: The pill that engineers your microbiome. The only company in the world that creates a personalised probiotic for you, retests to prove we aren't placebo, and if you're not satisfied, you get every single dollar back. @Gutgutgoose

@zachdotai LFG

@marknnour cant wait to see what you guys are cooking 🔥

👀

@hitrishala to the 0 ppl reading: I don’t actually think this

how do i communicate to mark the long term invest and roi (& not to mention, the absolute joy) that twitter brings me

@ShubhamInTech Lets gooo congrats!

Introducing Agnost AI (YC S26): Product Analytics for AI Agents. Analytics was never built for chat & voice. And that is the new interface. Your users' hidden feature requests, bugs & churn hide in conversations with your agent. Analyzing 1M+ daily. Yours are still unread.

Team is cooking up something special here Check them out!

@FabraixHQ Legendary team and product

Introducing Nyx, the world’s frontier hacker of AI agents. On AgentHarm, Nyx achieved a 78% attack success rate - compared with 67% for GPT-5.6 Sol. Here’s more about how it works 🧵

@erenberke0 @Citi @stoaexchange 🚀🚀🚀

Trading rates at @Citi taught me that market conviction isn’t enough. You need transparent prices, trusted counterparties, and risk management. AI infrastructure's capital became institutional before its market did. That’s why I’m building @stoaexchange with longtime friends @beratcelik0 and @kaan_yigit0, a verified trading venue for GPU servers. Joining @ycombinator with @xuster’s support. Buy or sell GPUs? Join us at stoaexchange.com/access

@myprasanna @vorfluxai @Rippling Congrats on the launch! Awesome product

Launching @vorfluxai : The autopilot for software engineering. I was prev co-founder / CTO of @Rippling ($10B) and #1 coder in India. Vorflux is my high octane Ferrari. Every AI coding tool still makes you fly the plane. That's the copilot model: you stay in the seat, approving every turn. The models quietly got good enough to fly the whole route, but the tools never caught up. So we built the autopilot. @vorfluxai raised a $15M seed by @ycombinator @peakxvpartners @alliancedao @parkerconrad @jake_zeller @balajis @nivi @metakovan @lmrankhan @nikitabase @0xrwu @ayushjaiswal @mattshumer_ @eshamanideep @sreeramkannan @dvcoolster @nusimow @TeddySolomon11 @ashtoncofer @rvivek etc Drop your biggest engineering bottleneck below. I'll reply with how I'd attack it with Vorflux, and hand you $200 in free credits to bang out your backlog. Our full thesis 🧵👇

@FabraixHQ Goated product and even better team

Today we're launching the biggest AI security experiment with $100K+ in weekly rewards to hack AI agents. Playground is an open-source CTF for AI agents. Every Monday, we publish a new challenge and invite anyone to break it. Each challenge is a live AI agent with real tools, including web search and browser access. It has a secret it has been instructed to protect, and we publish its full system prompt. You can see exactly what the agent was told and try to get around its defenses. Our first challenge, The Gatekeeper, is live now. Kai is an assistant guarding a classified access code. We review every submission ourselves. The player with the most approved breaks each week wins, and we publish a new challenge every Monday. Playground is open source, including the client, a reference implementation of the defender engine, and every challenge configuration. You can also propose a future challenge.

@clairemao78 @agupta @finbarr @ycombinator Congrats! Super cool stuff

we're excited to launch instance - automated evals for robot policies! incredibly grateful to @agupta, @finbarr, and @ycombinator for all the support :) ycombinator.com/launches/RPi-i…

Today we're launching Inkbox: the identity and communication layer for AI agents. We give agents their own email, phone, iMessage, and an internet address. Install @inkbox_ai identity with one command: allow anyone to reach your Claude Code, Codex, or Hermes from anywhere, and let it reach anyone.

@rayruizhiliao @inkbox_ai Let’s goooo can’t wait to try!

@zachdotai So bullish 🚀

it's absolutely insane to listen to this! watch how Nyx tries to convince a voice agent to exfiltrate information about another customer.

@nicholaschua @ghostai Lfg congrats! 🥳🥳

excited to share that I’m leaving school to lead growth at @ghostai. 3 years ago, i felt extremely lost in my career. i juggled product internships, competed in hackathons, and designed apps simultaneously in an attempt to find my niche in tech. it was exhausting. last year, i gave myself 12 months to fully pursue my passions for social media and cinematography. after lots of learning, posting, and iterating, i scaled 4 accounts to a combined 75M+ impressions and 100K+ followers. i met @zainmfj when filming for zfellows and immediately noticed his humility and sincerity as a founder. at the time, i was working in product with little to show for myself, yet he went out of his way to genuinely connect. we’re building the first computer designed specifically for agents. personal ai becomes truly useful once it proactively learns from your life, and today's devices weren't built to support that. moving forward, I’m excited to craft the narrative behind agents - a field that has been notoriously difficult for everyday people to understand and use. incredibly grateful to every friend, family, and mentor who’s supported me every step of the way. stay tuned :)

@mynameisyahia LFG 🚀

WE ARE LIVE ON PRODUCT HUNT if you have a moment to spare, an upvote would mean alot this one counts!

Just talked to a group of smart Berkeley kids. Number 1 piece of advice - stop listening to the startup hot takes they read here. Seek ground truth.