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OpenProse

Open-source infrastructure for reliable long-running agents

OpenProse is building open-source infrastructure for long-running AI work: a declarative language plus the Reactor harness/runtime for reliable agent workflows. Our organic open-source traction (7k+ installs) has already translated into a customer at a medical research lab, starting with a $10k pilot set to roll into a $10k/month contract. YC recruited us into the current batch and we've since hired two senior founding team members (ex-Google, Forbes 30u30 harness engineer). All three founding team members are two time founders. We just closed a $1m capped SAFE from Jonathan Abrams 8-Bit Capital and expect to raise $2.5-$3m more on Demo Day.
Active Founders
Dan Barrett
Dan Barrett
Founder
Software engineer of 12 years, agent developer of 5 years, two time founder. Creator of OpenProse.
YC Spring 2026 Application Video
OpenProse
Founded:2026
Batch:Spring 2026
Team Size:3
Status:
Active
Primary Partner:Pete Koomen