Open Data AI Hackathon with Hémicycle

A one-day build on French public open data: National Assembly and Senate votes and amendments, the HATVP lobbying register and data.gouv.fr. Run by swanbase with the startup Hémicycle, with Featherless as partner.

Anselme Boussuge, co-founder of Hémicycle, opens at 10:00 by walking through the datasets his startup works with every day, and his team stays all day to help. Teams form on the spot and prototypes are demoed at the end. Prizes: €1,000 in Hémicycle credits, $300 in Featherless credits and a place on TheNest, swanbase's 7-day programme.

Saturday 10:00 to 19:00, Paris 2nd, exact address sent after registration. Free, 40 places, approval required and nearly full. In French.

Why go: real parliamentary data, with the people who use it in production sitting next to you all day. Best for developers and data people drawn to civic tech or public affairs.