diff --git a/src/lib/api/adapters/crew.adapter.ts b/src/lib/api/adapters/crew.adapter.ts
index 055b6579..d05515b4 100644
--- a/src/lib/api/adapters/crew.adapter.ts
+++ b/src/lib/api/adapters/crew.adapter.ts
@@ -12,7 +12,9 @@ import type {
   CreatePhantomPlayerInput,
   UpdatePhantomPlayerInput,
   UpdateMembershipInput,
-  MemberFilter
+  MemberFilter,
+  RosterResponse,
+  RosterQuery
 } from '$lib/types/api/crew'
 
 /**
@@ -63,6 +65,23 @@ export class CrewAdapter extends BaseAdapter {
     return this.request<CrewMembersResponse>('/crew/members', { ...options, params })
   }
 
+  /**
+   * Get collection roster for crew members (officers only)
+   * Returns ownership info for specified items across all active crew members
+   */
+  async getRoster(query: RosterQuery, options?: RequestOptions): Promise<RosterResponse> {
+    const searchParams = new URLSearchParams()
+
+    query.characterIds?.forEach((id) => searchParams.append('character_ids[]', id))
+    query.weaponIds?.forEach((id) => searchParams.append('weapon_ids[]', id))
+    query.summonIds?.forEach((id) => searchParams.append('summon_ids[]', id))
+
+    const queryString = searchParams.toString()
+    const url = queryString ? `/crew/roster?${queryString}` : '/crew/roster'
+
+    return this.request<RosterResponse>(url, options)
+  }
+
   /**
    * Leave current crew (not available for captain)
    */
diff --git a/src/lib/types/api/crew.ts b/src/lib/types/api/crew.ts
index 0fc4bcc4..0f886462 100644
--- a/src/lib/types/api/crew.ts
+++ b/src/lib/types/api/crew.ts
@@ -126,3 +126,29 @@ export interface UpdateMembershipInput {
   retired?: boolean
   retiredAt?: string
 }
+
+// Roster feature types
+
+export interface RosterItem {
+  id: string
+  uncapLevel: number
+}
+
+export interface RosterMember {
+  userId: string
+  username: string
+  role: CrewRole
+  characters: RosterItem[]
+  weapons: RosterItem[]
+  summons: RosterItem[]
+}
+
+export interface RosterResponse {
+  members: RosterMember[]
+}
+
+export interface RosterQuery {
+  characterIds?: string[]
+  weaponIds?: string[]
+  summonIds?: string[]
+}