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OpenProse
YC X26San Francisco, US · Founded 2026 · 3 employees · 1 known investors
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Tommy Beltonunlockedknows Dan Barrett · together at SS&C Eze (overlapped)
knows the team · via YC X26
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OpenProse is a declarative language and framework for orchestrating multi-agent AI workflows, allowing developers to write contracts in Markdown that compile into executable topologies for coordinating AI agents running on Claude, Codex, or other language models.
AI & Machine LearningDeveloper ToolsEnterprise SoftwareUnited States of AmericaAmerica / CanadaFully Remote
Founders & leadership· Y Combinator alumni (X26)
OpenProse was founded in 2026 by Dan Barrett and Dan B.
DB
Dan BarrettFounder & CEODan Barrett is a software engineer with 12 years of experience, including 5 years of work in agent development, and has founded two companies.
DB
Dan BWith 12 years of software engineering experience across roles including tech lead and CTO, he previously co-founded Smashing (2021–2025), an AI-powered media platform, and has spent five years building and deploying large language model systems in production.
Investors · 1
Y Combinatorlisted by Y CombinatorSan Francisco · $500K
How we know: the Y Combinator directory · a partner's Signal profile · Not right? Tell us
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Frequently asked questions
- What does OpenProse do?
- OpenProse is a declarative language and framework for orchestrating multi-agent AI workflows, allowing developers to write contracts in Markdown that compile into executable topologies for coordinating AI agents running on Claude, Codex, or other language models.
- Who founded OpenProse?
- OpenProse was founded by Dan Barrett, Dan B in 2026.
- Who are OpenProse's investors?
- OpenProse's investors include Y Combinator.
- Where is OpenProse headquartered?
- OpenProse is headquartered in San Francisco, US.