Hackathon In 6 days
November
Monday
17:00–21:00 2026 · San Francisco time
You sign up with the host. foundercal only links to it.
The go-to hackathon for building and running voice agents.
Join us inside Vapi's San Francisco office for an exclusive night of building with top Vapi users, founders and AI builders, in the lead-up to VapiCon! ⚡
🎟️ Limited spots. This is a curated hackathon capped at 80 builders. You must apply and be approved to attend.
Got a voice AI idea that's been sitting in your backlog? This is your sign to finally build it, and find people to build with!
You'll have 3 hours to turn your idea into a working voice agent, test it live and demo it for a shot at some seriously good prizes.
Whether it's your first voice agent or your most ambitious side quest yet, come build something cool with people who love shipping as much as you do.
🏆 BIG prizes up for grabs
We're bringing some serious prizes for the best builds of the night.
🥇 1st Place: Apple AirPods
🥈 2nd Place: Seeed Studio hackable hardware
🥉 3rd Place: Belkin wired headphones
🎮 Deepgram: Nintendo Switch 2 prizes!
🔎 Exa: $2,000 in API credits for the winning project
🖐️ Manus: 6-month Manus membership + exclusive swag for a winning team
☎️ Vapi: Bonus credits for the top 3 teams
💸 $150 in FREE builder credits for everyone!
Every approved attendee gets:
⚡ $100 in TypeSafe / Jev credits for fast AI-powered decisions and automation
🔎 $50 in Exa API credits to give your agents access to live web information
And there's more!
🧠 Technical guidance and a room full of experienced builders
🍕 Free food + drinks to keep you fuelled
🎤 Live demos, feedback and a chance to show off what you've shipped
🤝 Meet founders, engineers and the teams building the future of voice AI
🛠️ Meet the tech partners
Everything you need to bring your voice AI side quest to life.
🔎 Exa: AI-powered web search to give your agents access to real-time information.
🎙️ Deepgram: Speech AI that lets your agents listen, understand and respond.
🖐️ Manus: Your AI agent for building apps, researching ideas and automating workflows.
⚡ TypeSafe: The team behind Jev, a fast AI model built for structured decisions, routing and automation.
All alongside Vapi, the platform powering your voice agents.
📍 The details
📅 Monday, November 9, 2026
🕔 5:00 PM – 9:00 PM PST
📍 Vapi HQ, San Francisco
💻 Bring: Your laptop, an idea and the energy to build.
Three hours. One side quest. Let's see what you can ship. 🚀
Hosted in partnership with Build Club, the world's most collaborative AI community.
Prize allocations and credit redemption are subject to sponsor terms. More details will be shared with approved participants.
Full text on Luma .
Investors in the room
