OpenProse
YC X26San Francisco, US · Founded 2026 · 3 employees · 4 known investors
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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.
Founders & leadership· Y Combinator alumni (X26)
OpenProse was founded in 2026 by Dan Barrett.

Investors · 4
How we know: the Y Combinator directory · a partner's Signal profile · open dataset · 5k.vc investor directory · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
How we know: Y Combinator's founder network · Not right? Tell us
Legal entities · 1
corporate structureFrequently 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 in 2026.
- Who are OpenProse's investors?
- OpenProse's investors include Y Combinator, 8-Bit Capital, Alumni Ventures, Mozilla Ventures.
- Where is OpenProse headquartered?
- OpenProse is headquartered in San Francisco, US.


