diff --git a/etc/sdk.api.md b/etc/sdk.api.md
index a65dc5c..322de88 100644
--- a/etc/sdk.api.md
+++ b/etc/sdk.api.md
@@ -5,6 +5,7 @@
 ```ts
 
 import { Buckets } from '@textile/hub';
+import { IGunChainReference } from 'gun/types/chain';
 import { UserAuth } from '@textile/hub';
 
 // @public (undocumented)
@@ -69,6 +70,13 @@ export class BrowserStorage {
     remove(key: string): Promise<void>;
 }
 
+// @public
+export interface BucketMetadata {
+    dbId: string;
+    encryptionKey: Uint8Array;
+    slug: string;
+}
+
 // @public (undocumented)
 export interface CreateFolderRequest {
     bucket: string;
@@ -107,6 +115,16 @@ export class FileStorage {
     remove(key: string): Promise<void>;
     }
 
+// @public
+export class GunsdbMetadataStore implements UserMetadataStore {
+    createBucket(bucketSlug: string, dbId: string): Promise<BucketMetadata>;
+    findBucket(bucketSlug: string, dbId: string): Promise<BucketMetadata | undefined>;
+    // Warning: (ae-forgotten-export) The symbol "GunChainReference" needs to be exported by the entry point index.d.ts
+    // Warning: (ae-forgotten-export) The symbol "GunDataState" needs to be exported by the entry point index.d.ts
+    static fromIdentity(identity: Identity, gunOrServer?: GunChainReference<GunDataState> | string): Promise<GunsdbMetadataStore>;
+    listBuckets(): Promise<BucketMetadata[]>;
+    }
+
 // Warning: (ae-internal-missing-underscore) The name "HubAuthResponse" should be prefixed with an underscore because the declaration is marked as @internal
 //
 // @internal
@@ -119,6 +137,7 @@ export interface HubAuthResponse {
 
 // @public
 export interface Identity {
+    privKey: Uint8Array;
     public: Public;
     sign(data: Uint8Array): Promise<Uint8Array>;
 }
@@ -202,6 +221,13 @@ export class UnauthenticatedError extends Error {
     constructor();
 }
 
+// @public
+export interface UserMetadataStore {
+    createBucket: (bucketSlug: string, dbId: string) => Promise<BucketMetadata>;
+    findBucket: (bucketSlug: string, dbId: string) => Promise<BucketMetadata | undefined>;
+    listBuckets: () => Promise<BucketMetadata[]>;
+}
+
 // @public
 export class Users {
     constructor(config: UsersConfig, storage?: IdentityStorage);
@@ -238,6 +264,8 @@ export class UserStorage {
 export interface UserStorageConfig {
     bucketsInit?: (auth: UserAuth) => Buckets;
     // (undocumented)
+    metadataStoreInit?: (identity: Identity) => Promise<UserMetadataStore>;
+    // (undocumented)
     textileHubAddress?: string;
 }
 
diff --git a/package.json b/package.json
index 9856694..c768b07 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "serve:docs": "npm run docs && cd website && npm run start",
     "build:docs": "npm run docs && cd website && npm install && npm run build",
     "bootstrap": "lerna bootstrap",
-    "bumpversion": "lerna version --no-push --no-git-tag-version",
+    "bumpversion": "npm run build:docs && lerna version --no-push --no-git-tag-version",
     "publish": "lerna publish",
     "publish:from": "lerna publish from-package",
     "clean": "lerna clean && lerna run clean",