Choose the SDK when
You want local or self-hosted operation, already run the required storage, and are comfortable owning credentials, isolation, observability, upgrades, and retention.
you operate the full stackOpen engine, operated cloud
Use the Apache-2.0 SDK locally or self-host it. ContextDB Cloud is the operated service around the same decision model, with project isolation, credentials, console workflows, and governance direction.
The boundary
The hosted service depends on the public SDK trust model. Fixes to trust math belong in the open engine and its evals. Cloud sells the work around running, isolating, observing, and governing it.
OPEN memory semantics trust policy act / ask / abstain trust-model evals local and self-hosted stores CLOUD OPERATIONS tenant and project isolation credentials and human console usage evidence and retention team and governance controls
Choose based on the job
You want local or self-hosted operation, already run the required storage, and are comfortable owning credentials, isolation, observability, upgrades, and retention.
you operate the full stackYou want the same decision model but prefer an operated control plane, project credentials, console visibility, and managed governance as those capabilities become available.
ContextDB operates the service layerCurrent status
The SDK is Available. The hosted gateway and console remain Alpha. Production operations and enterprise controls remain Planned.
See the status map and security posture before evaluating hosted use.
You can evaluate the core product without waiting for Cloud.