Spring 2026

OpenProse

An open-source operating system for reliable long-running agents

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What they do

Open-source language and runtime for long-running agent workflows

How close to us

2, near

Agent runtime for developers; orchestration layer only, no memory or measured results.

Wedges

  • No wedge fit written yet.
L1 Company brain (knows the organisation) 0, none
L2 Agent team (runs agents, tools, approvals) 2, clear
L3 Does and learns (finishes, checks, measures, updates the brain) 1, light

Who buys

Firm size
not known
Buyer type
developer
Role
engineers building agents
UK
not known
Their own description (from YC)

OpenProse is building open-source infrastructure for long-running AI work: a declarative language plus a reactive harness/runtime for reliable agent workflows.

Full teardown

No full teardown yet. On the deep list.

Technical detail
Slug
openprose
Lens hash
179096c479
Pass
screen
Stale
no