I also find some issues here: https://docs.authzed.com/guides/first-app The documentation has some issues regarding Node. The import is wrong: import { ClientSecurity, NewClient, ObjectReference, SubjectReference, WriteSchemaRequest, WriteRelationshipsRequest, Relationship, RelationshipUpdate, } from from '@authzed/authzed-node/v1'; And the package seems like is not build to have this @authzed/authzed-node/v1 workable. I used it like this: import authzed from '@authzed/authzed-node'; const { ClientSecurity, NewClient, ObjectReference, SubjectReference, WriteSchemaRequest, CheckPermissionRequest, WriteRelationshipsRequest, Relationship, RelationshipUpdate, } = authzed.v1;