

Whale x Anthropic: Claude Code Hackaton - Amsterdam
Build Local: A 24-hour hackathon in Amsterdam, co-hosted with Anthropic
Technology is getting rapidly more powerful — but not everyone has equal access.
On April 25–26, we are bringing together 100 of the best builders to create products for people and sectors that have less access, or risk being left behind entirely.
Build local: think minorities, non-profits, municipalities, emergency services, or even countries.
In 24 hours, you will go from idea to product, and pitch in front of the Jury and investors. And yes, we have crazy prizes worth over 10k+ 🏆🚀
Demo day is hosted by Jacqueline van den Ende, and Jury Members include Adriaan Mol, Duco van Lanschot, Clare Jones, and more.
You can find more information on the Jury [1], how this is for [2], the schedule [3], and contributors [4].
Ready to build?
Best, Alexander, Max, Joris, Bas 🐳
🔒 Participation is free but selective. Spots are limited.
Ps: from Europe? We can sponsor flights + hotels.
Details:
[1] Jury members & host
Jacqueline van den Ende, Founder Carbon Equity
Adriaan Mol, Founder Mollie
Duco van Lanschot, Founder Duna
Clare Jones, CEO Polarsteps
TBA
TBA
[2] Agenda - 25/26 April
Sat 11:00 — doors open
Sat 12:00 — building begins
Sun 12:00 — submissions close
Sun Demo Day 13:00–15:30 — Demo Day: pitch in front of the jury and VCs
Anthropic experts will be on hands throughout, together with short guest speaker sessions and live demos. And don't worry; we take care of credits, food, drinks, and activities.
[3] Teams and people:
We’re intentionally curating an inclusive and diverse mix of profiles across backgrounds, experience levels, and ways of thinking. The best projects come from unexpected combinations.
For who: for engineers, founders, and operators who know how to build with Claude. We expect everyone to ship
Teams: you will work in teams of 3-5. You can sign up solo or as a team of up to four. Solo applicants will be matched with others.
[4] Contributors:
Anthropic
Duna
Ingen Housz
Creatormate
TBA
TBA
About the Whale
The Whale brings together founders and operators building and scaling ambitious ideas — the kind of people who don't wait for permission.
We've hosted events with founders from Remote, Cradle (Index), Duna (Index), Relay (a16z), MarvelX (EQT), and MinimalAI (YC). Past co-hosts include an ex-Sequoia partner and Alex Berriche, one of Europe's top five angels.