Anthropic and Cerebral Valley celebrated Claude Code’s first birthday with a global virtual hackathon that culminated in final presentations at SHACK15 in San Francisco.

The event drew an extraordinary level of interest from builders around the world, with more than 13,000 applicants competing for 500 spots. Over the course of the hackathon, participants built 227 projects using Claude Code, showcasing the accelerating pace of development enabled by AI-native tools.

Finalists presented their work live before Anthropic’s Boris Cherny and venture investor Catherine Wu, while founders, engineers, and creators traveled in internationally to take part in the event and surrounding celebrations.

Among the standout projects was postvisit.ai by Michał Nedoszytko MD, PhD, who developed the platform while balancing his work as a full-time cardiologist traveling between San Francisco and Brussels. Within days of the event, the project generated more than 3.5 million views — a reflection of both the product’s resonance and the speed at which ambitious ideas can now scale.

More than a hackathon, the event underscored the rapidly growing global ecosystem forming around Anthropic and Claude Code. It also highlighted a broader shift underway in software development: builders are moving faster, operating more independently, and turning ideas into fully realized products in days rather than months.