list

 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
 

 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`

 
     Arbitrary key-value metadata. Maximum 16 pairs, keys up to 64 chars, values up to 512 chars.
 
-  - `relationship: "external" or "resold" or "internal"`
-
-    How the entity behind a user profile relates to the platform that owns the API key. `external`: an individual end-user of the platform. `resold`: a company the platform resells Claude access to. `internal`: the platform's own usage.
-
-    - `"external"`
-
-    - `"resold"`
-
-    - `"internal"`
-
   - `trust_grants: map[BetaUserProfileTrustGrant]`
 
     Trust grants for this profile, keyed by grant name. Key omitted when no grant is active or in flight.

 
     A timestamp in RFC 3339 format
 
+  - `access_type: optional "application" or "passthrough"`
+
+    How the platform uses the API on behalf of the entity this profile represents. `application`: the platform sells a product that uses the API behind the scenes, and the profile represents an individual end-user of that product. `passthrough`: the platform resells raw inference, and the profile identifies the resold-to company.
+
+    - `"application"`
+
+    - `"passthrough"`
+
   - `external_id: optional string or null`
 
     Platform's own identifier for this user. Not enforced unique.

 
   - `name: optional string or null`
 
-    Display name of the entity this profile represents. For `resold` this is the resold-to company's name.
+    Real-world name of the entity this profile represents (company or individual). For a resold-to company (`access_type` `passthrough`, or `relationship` `resold` under the `user-profiles-2026-03-24` header) this is that company's name.
 
+  - `relationship: optional "external" or "resold" or "internal"`
+
+    How the entity behind a user profile relates to the platform that owns the API key. `external`: an individual end-user of the platform. `resold`: a company the platform resells Claude access to. `internal`: the platform's own usage.
+
+    - `"external"`
+
+    - `"resold"`
+
+    - `"internal"`
+
 - `next_page: string or null`
 
   Cursor for the next page, or `null` when there are no more results.

 ```http
 curl https://api.anthropic.com/v1/user_profiles \
     -H 'anthropic-version: 2023-06-01' \
-    -H 'anthropic-beta: user-profiles-2026-03-24' \
+    -H 'anthropic-beta: user-profiles-2026-08-18' \
     -H "X-Api-Key: $ANTHROPIC_API_KEY"
 ```
 

       "id": "uprof_011CZkZCu8hGbp5mYRQgUmz9",
       "created_at": "2026-03-15T10:00:00Z",
       "metadata": {},
-      "relationship": "external",
       "trust_grants": {
         "cyber": {
           "status": "active"

       },
       "type": "user_profile",
       "updated_at": "2026-03-15T10:00:00Z",
+      "access_type": "application",
       "external_id": "user_12345",
-      "name": "Example User"
+      "name": "Example User",
+      "relationship": "external"
     }
   ],
   "next_page": "page_MjAyNS0wNS0xNFQwMDowMDowMFo="