Features
Version control for your MongoDB data
Millisecond branching, time travel, and restore, built on a deterministic write-ahead log. Open source and self-hosted.
/01
Millisecond branching
One metadata write — no copies at any size. Measured: 0.86 ms p50, 479 bytes per branch.
/02
Time-travel queries
Inspect or restore any historical state, addressed by LSN or timestamp.
/03
Deterministic by design
Same history, same state — byte for byte, property-tested in CI.
/04
Agent & eval workflows
TTL sandboxes, per-actor undo, GC-proof dataset pins, and a LangGraph checkpointer (argon-agents).
/05
Four surfaces, one engine
CLI for humans · MCP for agents (13 tools) · REST for SDKs · wire proxy for stable URIs.
/06
Honest engineering
Every number links to a benchmark you can run with docker compose up. What we can't back, we don't publish.
Everything is a view over one append-only log: branches are pointers into it, time-travel replays it (deterministically, property-tested), and checkout materializes it into a real MongoDB database. The deep dives: