Stratum is the open, self-hostable git forge for teams shipping agent-written code. It works with any agent, and every change has to prove itself — tests, evaluations, provenance, evidence — before it can merge. Built on Cloudflare.
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Three things every closed forge makes you give up. Stratum gives you all of them.
Run the whole platform in your own Cloudflare account. Your code never leaves your infrastructure, and there's no proprietary SaaS to lock you in.
Works with whatever agents and editors your team already uses. Stratum isn't tied to a single vendor's IDE or coding agent.
Nothing merges on trust. Every change proves itself with tests, evaluations, and provenance — governance built into the forge, not bolted on.
GitHub's review workflow assumes a human typing a small, readable diff at the keyboard. Agents break that assumption: they work across many tasks at once and produce more changes than a team can read line by line.
What matters then isn't the diff — it's whether the change behaved correctly, who or what made it, and whether it followed your rules. Stratum is built for that handoff: agents do the work, and teams keep clear evidence and control before anything ships.
Stratum helps teams decide whether a change behaved correctly before it merges.
How Stratum compares to the closed, proprietary forges built for the agentic era.
| Capability | Closed agentic forges | Stratum |
|---|---|---|
| Source | Proprietary SaaS | Open source |
| Hosting | Their cloud | Self-host in your own Cloudflare account |
| Agents | Tied to one vendor's IDE or agent | Any agent, any editor |
| Merge gate | Velocity-first | Evidence-first: tests, evals, provenance |
| Your code | On their servers | Never leaves your infrastructure |
Every commit in Stratum can carry the record behind it: which agent wrote it, which model was used, the prompt that shaped the work, and the reasoning behind the change. It is structured, queryable, and attached to the merge.
As agents write more code, accountability matters more, not less. Stratum keeps provenance close to the code so teams can understand the path from request to shipped change.
Stratum is open source — no closed forge, no vendor lock-in. It's built on Cloudflare, where each repository runs isolated in its own storage, so one repo's problem can't cascade to another. Deploy the whole thing into your own Cloudflare account and pay only for the infrastructure you use. Stratum Cloud is coming soon for teams that would rather have us run it.
github.com/stratum-eng/stratum →Stratum is an open-source, self-hostable git forge and code-hosting platform built for teams shipping agent-written code. It works with any agent and gates merges on tests, evaluations, and provenance.
Stratum reviews the result, not just the diff. Every change must prove itself through evaluation-gated merges — tests, LLM review, static analysis, and your own evaluation criteria — before it can merge.
Yes. Stratum is open source and self-hostable in your own Cloudflare account, so your code never leaves your infrastructure. Stratum Cloud is coming soon for teams that prefer a managed option.
Stratum is in closed beta, opening in waves — early signups get in first. Join the waitlist to claim your spot, and star the repo to follow along in the open.