OpenProse
An open-source operating system for reliable long-running agents
Operating in b2b based in San Francisco, CA, USA; Remote, OpenProse operates.
Profile
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've raised $1.25M in the last two weeks from Jonathan Abrams 8-Bit Capital, Otis Chandler, and other angels.
Within the b2b space, the company focuses on its core offering rather than a broad product line.
The business is associated with San Francisco, CA, USA; Remote.
It is recorded at the Spring 2026 stage.
The company reports a headcount in the 3 range.
Directory analysis
OpenProse develops an open‑source operating system for long‑running AI agents, providing a declarative language and the Reactor runtime to orchestrate reliable workflows. The company has achieved over 7,000 installs and secured a $10k pilot with a medical research lab that could expand to a $10k/month contract. It recently raised $1.25 million in seed funding from angels and is part of YC’s current batch.
Positioning: OpenProse is positioned in the niche of AI operations tooling, targeting enterprises that require robust, long‑running agent infrastructure. With early traction and YC support, it is gaining visibility but remains in the early‑stage startup phase.
Note: OpenProse is a three‑person remote B2B startup headquartered in San Francisco, California.
Auto-generated directory analysis from public data · updated 7 Oct 2026. Informational only, not investment advice.
| Sector | B2B |
|---|---|
| Headquarters | San Francisco, CA, USA; Remote |
| Country | USA; Remote |
| Employees | 3 |
| Stage | Spring 2026 |
Website: prose.md
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