Create or update a note under a key. Returns the note id.

Store an image (base64 data or file path) under a key. Returns image id.

Retrieve images by id or key. Optionally include base64 data.

Delete an image by id or all images by key.

Export images (by id or key) to files. Returns file paths.

Query notes by key or full-text search.

Delete notes by id or by key. Returns count/boolean.

Export all notes to a JSON backup file and return the path.

Restore notes from a JSON backup file. Returns imported count.

List known keys and counts.

Health check.

Create or update a graph node with label/type/props. Returns node id.

Get neighbors of a node (by id or label/type) up to a depth and limit.

Find a path of nodes from A to B (by id or label/type).

Import nodes and edges from existing notes: note -> key and note -> tags.

Get counts of nodes and edges in the graph store.