diff --git a/lib/shared/thread-utils.js b/lib/shared/thread-utils.js
--- a/lib/shared/thread-utils.js
+++ b/lib/shared/thread-utils.js
@@ -13,8 +13,10 @@
 import { relationshipBlockedInEitherDirection } from './relationship-utils.js';
 import type { SidebarItem } from './sidebar-item-utils.js';
 import { dmThreadProtocol } from './threads/protocols/dm-thread-protocol.js';
+import { farcasterThreadProtocol } from './threads/protocols/farcaster-thread-protocol.js';
 import { keyserverThreadProtocol } from './threads/protocols/keyserver-thread-protocol.js';
 import { protocols } from './threads/protocols/thread-protocols.js';
+import type { ThreadProtocol } from './threads/thread-spec.js';
 import {
   threadSpecs,
   threadTypeIsCommunityRoot,
@@ -113,6 +115,7 @@
 import { entries, values } from '../utils/objects.js';
 import { useSelector } from '../utils/redux-utils.js';
 import { userSurfacedPermissionsFromRolePermissions } from '../utils/role-utils.js';
+import { supportsFarcasterDCs } from '../utils/services-utils.js';
 import { firstLine } from '../utils/string-utils.js';
 import {
   pendingThreadIDRegex,
@@ -1119,6 +1122,7 @@
   +searching: boolean,
   +userInfoInputArray: $ReadOnlyArray<AccountUserInfo>,
   +allUsersSupportThickThreads: boolean,
+  +allUsersSupportFarcasterThreads: boolean,
 };
 type ExistingThreadInfoFinder = (
   params: ExistingThreadInfoFinderParams,
@@ -1182,9 +1186,13 @@
         return baseThreadInfo;
       }
 
-      const protocol = params.allUsersSupportThickThreads
-        ? dmThreadProtocol
-        : keyserverThreadProtocol;
+      let protocol: ThreadProtocol<any> = keyserverThreadProtocol;
+      if (params.allUsersSupportFarcasterThreads && supportsFarcasterDCs) {
+        protocol = farcasterThreadProtocol;
+      } else if (params.allUsersSupportThickThreads) {
+        protocol = dmThreadProtocol;
+      }
+
       return createPendingThread({
         viewerID,
         threadType: protocol.pendingThreadType(userInfoInputArray.length),
diff --git a/native/chat/message-list-container.react.js b/native/chat/message-list-container.react.js
--- a/native/chat/message-list-container.react.js
+++ b/native/chat/message-list-container.react.js
@@ -8,6 +8,7 @@
 
 import genesis from 'lib/facts/genesis.js';
 import {
+  useUsersSupportFarcasterDCs,
   useUsersSupportingProtocols,
   useUsersSupportThickThreads,
 } from 'lib/hooks/user-identities-hooks.js';
@@ -287,7 +288,8 @@
       useExistingThreadInfoFinder(baseThreadInfo);
 
     const checkUsersThickThreadSupport = useUsersSupportThickThreads();
-    const { allUsersSupportThickThreads } =
+    const checkUsersFarcasterDCsSupport = useUsersSupportFarcasterDCs();
+    const { allUsersSupportThickThreads, allUsersSupportFarcasterThreads } =
       useUsersSupportingProtocols(userInfoInputArray);
 
     const isSearching = !!props.route.params.searching;
@@ -297,8 +299,10 @@
           searching: isSearching,
           userInfoInputArray,
           allUsersSupportThickThreads,
+          allUsersSupportFarcasterThreads,
         }),
       [
+        allUsersSupportFarcasterThreads,
         allUsersSupportThickThreads,
         existingThreadInfoFinder,
         isSearching,
@@ -366,14 +370,24 @@
     const resolveToUser = React.useCallback(
       async (user: AccountUserInfo) => {
         const newUserInfoInputArray = user.id === viewerID ? [] : [user];
-        const usersSupportingThickThreads = await checkUsersThickThreadSupport(
-          newUserInfoInputArray.map(userInfo => userInfo.id),
-        );
+        const newUserIDs = newUserInfoInputArray.map(userInfo => userInfo.id);
+        const [usersSupportingThickThreads, usersSupportingFarcasterThreads] =
+          await Promise.all([
+            checkUsersThickThreadSupport(newUserIDs),
+            checkUsersFarcasterDCsSupport(newUserIDs),
+          ]);
+
         const resolvedThreadInfo = existingThreadInfoFinder({
           searching: true,
           userInfoInputArray: newUserInfoInputArray,
           allUsersSupportThickThreads:
-            user.id === viewerID || usersSupportingThickThreads.has(user.id),
+            user.id === viewerID
+              ? true
+              : !!usersSupportingThickThreads.get(user.id),
+          allUsersSupportFarcasterThreads:
+            user.id === viewerID
+              ? false
+              : !!usersSupportingFarcasterThreads.get(user.id),
         });
         invariant(
           resolvedThreadInfo,
@@ -384,10 +398,11 @@
         setParams({ searching: false, threadInfo: resolvedThreadInfo });
       },
       [
-        checkUsersThickThreadSupport,
         viewerID,
-        editInputMessage,
+        checkUsersThickThreadSupport,
+        checkUsersFarcasterDCsSupport,
         existingThreadInfoFinder,
+        editInputMessage,
         setParams,
       ],
     );
diff --git a/web/chat/chat-thread-composer.react.js b/web/chat/chat-thread-composer.react.js
--- a/web/chat/chat-thread-composer.react.js
+++ b/web/chat/chat-thread-composer.react.js
@@ -9,7 +9,10 @@
 import SWMansionIcon from 'lib/components/swmansion-icon.react.js';
 import { useLoggedInUserInfo } from 'lib/hooks/account-hooks.js';
 import { useENSNames } from 'lib/hooks/ens-cache.js';
-import { useUsersSupportThickThreads } from 'lib/hooks/user-identities-hooks.js';
+import {
+  useUsersSupportFarcasterDCs,
+  useUsersSupportThickThreads,
+} from 'lib/hooks/user-identities-hooks.js';
 import { userInfoSelectorForPotentialMembers } from 'lib/selectors/user-selectors.js';
 import {
   usePotentialMemberItems,
@@ -92,6 +95,7 @@
   );
 
   const checkUsersThickThreadSupport = useUsersSupportThickThreads();
+  const checkUsersFarcasterDCsSupport = useUsersSupportFarcasterDCs();
 
   const onSelectUserFromSearch = React.useCallback(
     async (userListItem: UserListItem) => {
@@ -106,9 +110,14 @@
           username: userListItem.username,
         };
         const newUserInfoInputArray = user.id === viewerID ? [] : [newUserInfo];
-        const usersSupportingThickThreads = await checkUsersThickThreadSupport(
-          newUserInfoInputArray.map(userInfo => userInfo.id),
-        );
+        const newUserIDs = newUserInfoInputArray.map(userInfo => userInfo.id);
+
+        const [usersSupportingThickThreads, usersSupportingFarcasterThreads] =
+          await Promise.all([
+            checkUsersThickThreadSupport(newUserIDs),
+            checkUsersFarcasterDCsSupport(newUserIDs),
+          ]);
+
         const threadInfo = existingThreadInfoFinderForCreatingThread({
           searching: true,
           userInfoInputArray: newUserInfoInputArray,
@@ -116,6 +125,10 @@
             user.id === viewerID
               ? true
               : !!usersSupportingThickThreads.get(user.id),
+          allUsersSupportFarcasterThreads:
+            user.id === viewerID
+              ? false
+              : !!usersSupportingFarcasterThreads.get(user.id),
         });
         dispatch({
           type: updateNavInfoActionType,
@@ -137,12 +150,13 @@
       }
     },
     [
-      checkUsersThickThreadSupport,
-      dispatch,
       viewerID,
+      userInfoInputArray,
+      checkUsersThickThreadSupport,
+      checkUsersFarcasterDCsSupport,
       existingThreadInfoFinderForCreatingThread,
+      dispatch,
       pushModal,
-      userInfoInputArray,
     ],
   );
 
diff --git a/web/utils/thread-utils.js b/web/utils/thread-utils.js
--- a/web/utils/thread-utils.js
+++ b/web/utils/thread-utils.js
@@ -78,7 +78,7 @@
   });
   const existingThreadInfoFinder = useExistingThreadInfoFinder(baseThreadInfo);
 
-  const { allUsersSupportThickThreads } =
+  const { allUsersSupportThickThreads, allUsersSupportFarcasterThreads } =
     useUsersSupportingProtocols(selectedUserInfos);
 
   const threadInfo = React.useMemo(() => {
@@ -91,6 +91,7 @@
         searching: true,
         userInfoInputArray: selectedUserInfos,
         allUsersSupportThickThreads,
+        allUsersSupportFarcasterThreads,
       });
     }
 
@@ -98,8 +99,10 @@
       searching: false,
       userInfoInputArray: [],
       allUsersSupportThickThreads: true,
+      allUsersSupportFarcasterThreads: true,
     });
   }, [
+    allUsersSupportFarcasterThreads,
     allUsersSupportThickThreads,
     existingThreadInfoFinder,
     existingThreadInfoFinderForCreatingThread,