Tobias
@tobiasherber_
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Founder @MetorialAI (YC F25). "Deeply technical" (huge nerd)
🇦🇹Austria+🇺🇸San Francisco
Joined February 2016
Last night's sneak peak from inside Y Combinator Note - YC founders are days away from Demo Day. The internets are about to start their quarterly complaints about YC valuations, founders that move too fast, inflated ARR numbers, etc. I thought I would share what it's like
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romanticizing Salesforce tower is the most fuckass SF thing ever 😔
the sun rises behind the salesforce tower as the working day starts at 9AM. poetic.
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Honored to share that @MetorialAi was named by @Forbes as one of the top @ycombinator F25 startups to watch. In the last month we’ve: • Reached #1 in GitHub stars among all F25 open-source companies • Been voted into the top 3 of the YC F25 product showcase (and the only
forbes.com
Meet the breakout startups from YC Fall 2025 — the boldest founders and biggest ideas shaping the future of tech.
Want a sneak peek into the @ycombinator F25 batch? Check my latest article for @Forbes. You won’t be disappointed. @getdomeapi @kurushdubash @peggy_wang @digipals_app
@wen_rahme @tobiasherber @MetorialAi @conor_ai @aryansawhney17 @erikvank05 @v_c776 @JuliAndreeaH
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Seeing a lot of REGRESSION in startup website design. You're likely better served with a Framer / Webflow / Squarespace template than a vibe-coded website that ignores just about all rules of design.
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Leave a star:
github.com
The open source AI integration platform for developers. - Metorial (YC F25)
Honored to share: @MetorialAi is now among @ycombinator's Top 100 Open-Source Companies, alongside @supabase, @posthog, @bunjavascript, and @AirbyteHQ. Grateful and just getting started.
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Can confirm
Every autistic person I know loves AI. Many of them use LLMs more than anyone else I've seen - and find it incredibly useful in their personal and professional lives. I think it's weird we don't talk about this more.
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🚀 Launching Magic MCP by Metorial One-click 600+ integrations for Cursor, Claude Code & more. No configs, no connection strings, no restarts. Serverless MCP hosting (pause/resume, <1s cold starts). No infra to manage. https://t.co/EnIxPOHnw0
producthunt.com
Metorial is the open-source MCP integration platform for AI agents. Connect to 600+ integrations, deploy custom MCP servers to serverless infrastructure, and get full observability out of the box....
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The deadline to apply for the winter batch is tomorrow, November 10th, at 8pm PT! All you need is an idea: https://t.co/9hUZ0buEiU
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fun fact: the reason ur internal body temperature spikes when infected is because viruses are using ur body to train LLMs. > we’re simply a walking data center.
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I’m putting a flower on every invoice from now on (darkmode is fire though)
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My co-founder is losing it. Please send help!
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Built our healthcare billing agent @ycombinator on top of @MetorialAi to streamline insurance claims. And it honestly felt like using @vercel for MCP. Three clicks, 600+ servers, sub-second cold starts. Everything just worked. No Docker configs. No OAuth headaches. No infra.
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For 5+ years, I was hooked on @garrytan’s YouTube, finding inspiration in his obsession with solving problems others ignore. In 2023, that energy connected with my own pain point: How is it possible that we can get anything delivered to our doorstep instantly, yet still spend 40+
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Excited to have won 1st place at the @MetorialAi Agent Jam with @JeremiahThinks & @armbot7 with 200+ talented builders competing!! My 3rd hackathon win this month! Thanks @ycombinator @amiklas @wen_rahme @tobiasherber_
🚀 @MetorialAi (YC F25) is throwing their 24-hour Metorial Agent Hackathon overnight at the Y Combinator office in SF on the weekend of November 1st - November 2nd. Push AI agents to the limit, meet fellow builders, and win a guaranteed YC interview. Looking forward to seeing
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Had an amazing weekend hacking at the YC Agent Jam ‘25 hosted by @MetorialAi, Nivara and more. Secured first place for Nivara track! Quite special for me!😇 Crunchy cheese is an optimized GPU scheduler for ML workloads, analyze-build-deploy with a click! #ychackathon #AIAgents
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The Agents era just got real. @MetorialAi Agent Jam Hackathon killed it this weekend at the @ycombinator office! Was so great to see how all the teams used Morph in their products. we saw 6 teams build agents that actually do work: call people, deploy apps, manage ops, train
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another hackathon win from solo hacking this weekend thanks @ycombinator @MetorialAi @amiklas I appreciate the digicam!
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I'm not gonna sleep tonight.
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Applications for the YC Winter 2026 batch are now open! Apply by November 10: https://t.co/gNl84El3BS
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