

YC Startup School After Party - Respan
YC Startup School doesn't have to end when the sessions do.
[Please note this is an exclusive event for YC Startup School 2026 attendees.]
After a full day of talks, workshops, and founder energy, join Respan for an afterparty at Mission Rock Resort in San Francisco.
We're bringing the YC community together for a night that trades the stiff mixer vibe for something that actually feels fun.
What's happening?
Waterfront SF venue: We're taking over Mission Rock Resort, a standout waterfront space on the sunny shores of Mission Bay.
Music, food, and founder chaos: Come unwind after Startup School with good music, great food, and the kind of conversations that make strangers become friends (or even cofounders).
No panels. No pitches. Just fun: Come as you are. Grab some food, find good company, and enjoy a night with those who get it.
The party's the excuse. The people are the point.
About:
Respan (YC W24) is an AI infrastructure platform that helps teams build, monitor, and improve reliable AI agents in production. We provide observability, evals, prompt optimization, and infrastructure tooling that gives teams visibility into how their AI systems perform, where they fail, and how to improve quality over time. From debugging and monitoring to experimentation and cost control, Respan helps companies ship AI products faster and with more confidence.
MongoDB is a document database designed to help developers build modern applications faster. It stores data in flexible, JSON-like documents, making it easy to model data the same way your application code uses it. The flexible schema lets you evolve your data model without downtime, iterate quickly, and easily handle non-uniform data.
Composio is a tool-integration platform that lets AI agents take real actions across 1,000+ apps like GitHub, Slack, and Gmail. It handles authentication, managed OAuth, and reliable tool calling, so developers can equip agents to move from intent to action without building that infrastructure themselves.