Multiplayer Hackathon by Party (SF)
Multiplayer Building is here.
Google Docs made documents collaborative.
Figma made design collaborative.
Now, Party is making building collaborative.
At this event, you'll get a glimpse of the future of building with agents: together in the open.
We pack the room with founders, engineers, product leaders, hackers, designers, etc and we'll all work with agent teams to build something amazing. Agent teams do the heavy lifting on objectives (not prompts) while everyone in the room steers. You'll leave with something you were part of making (hosted publicly), some new friends, and a totally refreshed outlook on building great products.
This event is absolutely free. You’ll join the rest of the group on our community Party space where the tokens are free and you can see/steer everything that’s cooking.
What you'll do:
We’ll add you to the community Party space
Build, review, contribute to, and ship features to one shared project alongside others
Enjoy refreshments and meet other passionate builders
Enjoy the product you helped build
What to Expect
Schedule is approximate - the build runs as long as people want to keep going.
6:00 – 6:45 PM | Doors, Food & Networking Grab food and a drink, get your laptop set up, meet and greet.
6:45 – 7:00 PM | Welcome & Walkthrough What we're building, how Party works, and how to join the project.
7:00 – 9:00+ | Build Session
Who Should Attend
AI-pilled engineers curious what building in the open feels like
Product managers and designers who want to be more involved in the build
Founders and early startup teams looking to ship faster with better quality
Project managers and technical leads
Anyone on the Peninsula who'd like to spend the evening building with like-minded individuals
You do not need to be an expert with coding agents. You do need to be up for building something with people you've just met.
What You'll Walk Away With
Something real that you helped build - that you’ll have access to after the event
The experience of building alongside others, with agents, to create something spectacular
Three months of Party Starter, free - which includes $20 in credits, monthly
$250 in credits so you can keep building
Important Details
Format: In person
What to bring: Your laptop
Experience level: All levels. Party, Cursor, Claude Code, etc experience not required.
Capacity: Limited to 50. RSVP required
Location: Financial District, SF
About Party
Party is the multiplayer workspace where your whole team builds together alongside fleets of agents, out in the open. Agent Flows do the heavy lifting while humans steer. You pick the harness and model for each agent in the Flow - Claude Code, Codex, Cursor, Opencode - and work in the same secure session as the rest of your team. Bring your own keys, or use ours.
Learn more about Party at party.build. Try Party at app.party.build (web, MacOS, iOS, and Android).
Sponsorship & Partners
Interested in getting involved? We work with partners on demos, speaking slots, and co-hosted nights. Reach out to Julian at julian@party.build