Files you own.
Versioned Parquet sits beside a JSON manifest and a rebuildable catalog. Object storage carries optional sync.
Explore the store →LOCAL-FIRST CONTEXT ENGINE
Your data.
Your agents.
Your context.
Connect your sources. Keep versioned data on your own storage. Give agents retrieval and memory through CLI, MCP and HTTP.
Open source · Apache-2.0 · Built in Rust
CONTEXTFUL / SYSTEMLOCAL NODE
01
Connect sources
Sandboxed component connectors
02
Keep the data
Parquet · manifest · catalog
03
Serve context
Query · retrieval · memory
CLIMCPHTTP
DESIGNED FOR OWNERSHIP
Context stays close
to the data.
Context agents can use.
A CLI, MCP endpoint and HTTP interface expose retrieval, memory and derived results from the same engine.
Explore the read path →Behavior you can inspect.
Addressable clauses define the system. Tests and formal proofs ground its computed implementation status.
Read the specification →FROM OVERVIEW TO CONTRACT
See how Contextful fits together.
Start with the topology, follow a guide, or inspect the demonstrated behavior.