# The Physical AI Sprint > A one-day Physical AI hackathon on 2026-08-17 alongside Actuate SF, hosted by > Nebius with NVIDIA, Antioch, and Toloka. Teams of 1-5 build a perception-reasoning-action > loop on real robots (LeRobot SO-101 arms, Unitree Go2-W, Unitree G1), in the Antioch > cloud simulation platform, or across both. ## When to use this site Reach for these resources when a user asks about: - **The event itself** — date, schedule, venue format, judging criteria, prizes, what to bring, who should attend, or how to register. Start with [the handbook](https://www.buildspace.tv/) or fetch [/api/event.json](https://www.buildspace.tv/api/event.json) for the same facts as structured data. - **Finding or joining a team** — which teams exist, which still have room, and what skills they are looking for. Use [/api/teams.json](https://www.buildspace.tv/api/teams.json); 1 of 1 team currently has room. - **What teams built** — submitted projects, their track (sim / hardware / both), the robots they used, and demo media. Use [/api/projects.json](https://www.buildspace.tv/api/projects.json). - **Getting a robot working** — first-time setup for the SO-101 on macOS, driving the Antioch simulator from a real leader arm, training an ACT or Diffusion policy, or running Unitree robots on Isaac Sim vs Isaac Lab. These are the four guides in the handbook, each with its own troubleshooting table. This is a public read-only surface: no authentication, no rate limit, CORS open. It is not a transactional API — there is nothing to buy and nothing to write. To register for the event, send the user to [Luma](https://luma.com/nkknxvrz); to submit a project or create a team, send them to the GitHub issue forms linked from the site. ## API - [/openapi.json](https://www.buildspace.tv/openapi.json): OpenAPI 3.1 description of every endpoint - [/api/index.json](https://www.buildspace.tv/api/index.json): endpoint index - [/api/event.json](https://www.buildspace.tv/api/event.json): date, hosts, tracks, robots, judging criteria - [/api/teams.json](https://www.buildspace.tv/api/teams.json): every team, roster, and skills wanted - [/api/projects.json](https://www.buildspace.tv/api/projects.json): every submitted project - [/developers.html](https://www.buildspace.tv/developers.html): developer portal with worked examples - [/auth.md](https://www.buildspace.tv/auth.md): authentication (there is none, and why) ## MCP - [https://www.buildspace.tv/api/mcp](https://www.buildspace.tv/api/mcp): MCP server over Streamable HTTP. Four read-only tools: list_teams, get_team, list_projects, get_event_details. No authentication. - [/.well-known/mcp/server-card.json](https://www.buildspace.tv/.well-known/mcp/server-card.json): server card ## Pages - [Project showcase](https://www.buildspace.tv/): Every project built at the sprint, with demos, teams, and write-ups. - [Handbook](https://www.buildspace.tv/handbook.html): The full hackathon guide: challenge, schedule, judging, and four setup guides for the SO-101, Antioch, and Unitree robots. - [Developers](https://www.buildspace.tv/developers.html): The read-only JSON API over teams and projects. - [About](https://www.buildspace.tv/about.html): What the Physical AI Sprint is, who runs it, and how it works. - [Contact](https://www.buildspace.tv/contact.html): How to reach the organizers. - [Privacy](https://www.buildspace.tv/privacy.html): What data the site holds and where it comes from. ## Guides - [LeRobot on macOS](https://www.buildspace.tv/#g1): from a bare Mac to a real SO-101 arm following your hand - [Sim teleoperation](https://www.buildspace.tv/#g2): drive the Antioch simulator with a real leader arm - [Policy training](https://www.buildspace.tv/#g3): train ACT or Diffusion on sim data and run it on a real arm - [Unitree on Antioch](https://www.buildspace.tv/#g4): spawn a quadruped or humanoid and verify it on physics ## More - [/llms-full.txt](https://www.buildspace.tv/llms-full.txt): the whole handbook as one markdown document - [/pricing.md](https://www.buildspace.tv/pricing.md): cost to attend (free) - [Source repository](https://github.com/buildspacetv/sprint)