​The First 24-Hour YC AI Agents Hackathon

​Friday, Aug. 22nd – Saturday, Aug. 23rd | YC Office | Application Required

​A small, high-signal day for people who ship.

​Join us at the YC office for an invite-only hackathon focused on AI Agents and MCP. We're bringing together top builders, current-batch YC founders, and guests from Vercel and Y Combinator for a 24-hour hackathon ending in live demos and shipped product.

​Capacity is limited; applications are required.

​Who Should Apply

​Your projects make it past localhost. You've shipped agents, tooling, or infra, or you can show relevant repos and experience.

​What to Expect

​Kickoff talks over dinner Friday, followed by focused building all night with direct access to engineers from host companies for technical feedback and support. API credits courtesy of Anthropic, Vercel, and supporting YC companies.

​Speakers and panels throughout the day Saturday, with building ending at 6pm—exactly 24 hours. Demos, networking, and judging from 6–8pm.

​An evening of demos and networking with invited guests and current-batch YC S25 founders. Standout teams may have the opportunity to start hiring discussions with hosting companies.

​You will not be hungry. Breakfast, lunch, and dinner from a local award-winning chef. Coffee and snacks provided throughout the day. Vegan, vegetarian, and health-conscious options available.

​Merch will be provided to all attendees. Speakers, prizes, and the full program will be announced the week of the event.

​Hosts (YC '25)

• ​Dedalus: MCP gateway-as-a-service for agentic AI workflows 🪽

• ​Kernel: Crazy Fast Browser Infrastructure for AI web agents

• ​Interfere: Write code that fixes itself in production

• ​Nozomio: Best-in-class context augmentation for codegen tools

• ​Browser Use: We enable AI to control your browser

​Selection & Format

​Applications are reviewed on a rolling basis, accepted participants have 48 hours to confirm. Teams of up to 4 are welcome; there will be time for solo builders to form teams on site. Demoing in-person is mandatory for all accepted participants.

​Logistics

​Bring your laptop and charger. Final venue details will be shared with accepted attendees.

​Sponsors

​Anthropic, Vercel, & Y Combinator