diff --git a/crates/api/src/builder/api.rs b/crates/api/src/builder/api.rs
index b35a6fa0..6341ae48 100644
--- a/crates/api/src/builder/api.rs
+++ b/crates/api/src/builder/api.rs
@@ -94,7 +94,7 @@ where
     db: Arc<DB>,
     chain_info: Arc<ChainInfo>,
     simulator: S,
-    gossiper: Arc<G>,
+    gossiper: Option<Arc<G>>,
     signing_context: Arc<RelaySigningContext>,
     relay_config: Arc<RelayConfig>,
     db_sender: Sender<DbInfo>,
@@ -119,7 +119,7 @@ where
         db: Arc<DB>,
         chain_info: Arc<ChainInfo>,
         simulator: S,
-        gossiper: Arc<G>,
+        gossiper: Option<Arc<G>>,
         signing_context: Arc<RelaySigningContext>,
         relay_config: RelayConfig,
         slot_update_subscription: Sender<Sender<ChainUpdate>>,
@@ -1301,8 +1301,12 @@ where
             is_cancellations_enabled,
             on_receive,
         };
-        if let Err(err) = self.gossiper.broadcast_header(params).await {
-            error!(%err, "failed to broadcast header");
+        if let Some(gossiper) = &self.gossiper {
+            if let Err(err) = gossiper.broadcast_header(params).await {
+                error!(%err, "failed to broadcast header");
+            }
+        }else {
+            warn!("Gossiper is not available, skipping header broadcast");
         }
     }
 
@@ -1316,8 +1320,13 @@ where
             slot: payload.slot(),
             proposer_pub_key: payload.proposer_public_key().clone(),
         };
-        if let Err(err) = self.gossiper.broadcast_payload(params).await {
-            error!(%err, "failed to broadcast payload");
+       
+        if let Some(gossiper) = &self.gossiper {
+            if let Err(err) = gossiper.broadcast_payload(params).await {
+                error!(%err, "failed to broadcast payload");
+            }
+        }else {
+            warn!("Gossiper is not available, skipping payload broadcast");
         }
     }
 
@@ -1327,8 +1336,12 @@ where
         request_id: &Uuid,
     ) {
         let params = BroadcastCancellationParams { signed_cancellation, request_id: *request_id };
-        if let Err(err) = self.gossiper.broadcast_cancellation(params).await {
-            error!(request_id = %request_id, error = %err, "failed to broadcast header");
+        if let Some(gossiper) = &self.gossiper {
+            if let Err(err) = gossiper.broadcast_cancellation(params).await {
+                error!(%err, "failed to broadcast header");
+            }
+        }else {
+            warn!("Gossiper is not available, skipping header broadcast");
         }
     }
 }
diff --git a/crates/api/src/proposer/api.rs b/crates/api/src/proposer/api.rs
index 90850099..98d812dd 100644
--- a/crates/api/src/proposer/api.rs
+++ b/crates/api/src/proposer/api.rs
@@ -76,7 +76,7 @@ where
 {
     auctioneer: Arc<A>,
     db: Arc<DB>,
-    gossiper: Arc<G>,
+    gossiper: Option<Arc<G>>,
     broadcasters: Vec<Arc<BlockBroadcaster>>,
     multi_beacon_client: Arc<M>,
 
@@ -99,7 +99,7 @@ where
     pub fn new(
         auctioneer: Arc<A>,
         db: Arc<DB>,
-        gossiper: Arc<G>,
+        gossiper: Option<Arc<G>>,
         broadcasters: Vec<Arc<BlockBroadcaster>>,
         multi_beacon_client: Arc<M>,
         chain_info: Arc<ChainInfo>,
@@ -671,16 +671,20 @@ where
         let slot = signed_blinded_block.message().slot();
 
         // Broadcast get payload request
-        if let Err(e) = proposer_api
-            .gossiper
-            .broadcast_get_payload(BroadcastGetPayloadParams {
-                signed_blinded_beacon_block: signed_blinded_block.clone(),
-                request_id,
-            })
-            .await
-        {
-            error!(request_id = %request_id, error = %e, "failed to broadcast get payload");
-        };
+        if let Some(gossiper) = &proposer_api.gossiper {
+            if let Err(e) = gossiper
+                .broadcast_get_payload(BroadcastGetPayloadParams {
+                    signed_blinded_beacon_block: signed_blinded_block.clone(),
+                    request_id,
+                })
+                .await
+            {
+                error!(request_id = %request_id, error = %e, "failed to broadcast get payload");
+            }
+        } else {
+            warn!(request_id = %request_id, "Gossiper is not available, skipping broadcast");
+        }
+        
 
         match proposer_api
             ._get_payload(signed_blinded_block, &mut trace, &request_id, user_agent)
diff --git a/crates/api/src/proposer/tests.rs b/crates/api/src/proposer/tests.rs
index e401628e..1729a317 100644
--- a/crates/api/src/proposer/tests.rs
+++ b/crates/api/src/proposer/tests.rs
@@ -988,7 +988,7 @@ mod proposer_api_tests {
         >::new(
             auctioneer.clone(),
             Arc::new(MockDatabaseService::default()),
-            Arc::new(MockGossiper::new().unwrap()),
+            Some(Arc::new(MockGossiper::new().unwrap())),
             vec![],
             Arc::new(MockMultiBeaconClient::default()),
             Arc::new(ChainInfo::for_holesky()),
diff --git a/crates/api/src/service.rs b/crates/api/src/service.rs
index 684893ef..54797dc4 100644
--- a/crates/api/src/service.rs
+++ b/crates/api/src/service.rs
@@ -150,14 +150,18 @@ impl ApiService {
                 .start(chain_updater_head_events, chain_updater_payload_events)
                 .await;
         });
-
-        let gossiper = Arc::new(
-            GrpcGossiperClientManager::new(
-                config.relays.iter().map(|cfg| cfg.url.clone()).collect(),
-            )
-            .await
-            .expect("failed to initialise gRPC gossiper"),
-        );
+        let gossiper;
+        if config.relays.len() == 0 {
+            gossiper = None;
+        }else{
+            gossiper = Some(Arc::new(
+                GrpcGossiperClientManager::new(
+                    config.relays.iter().map(|cfg| cfg.url.clone()).collect(),
+                )
+                .await
+                .expect("failed to initialise gRPC gossiper"),
+            ));
+        }
 
         let validator_preferences = Arc::new(config.validator_preferences.clone());
 
@@ -177,7 +181,9 @@ impl ApiService {
         );
         let builder_api = Arc::new(builder_api);
 
-        gossiper.start_server(builder_gossip_sender, proposer_gossip_sender).await;
+        if gossiper.is_some(){
+            gossiper.clone().unwrap().start_server(builder_gossip_sender, proposer_gossip_sender).await;
+        }
 
         let proposer_api = Arc::new(ProposerApiProd::new(
             auctioneer.clone(),
diff --git a/crates/api/src/test_utils.rs b/crates/api/src/test_utils.rs
index 923e3b0d..aebdb0de 100644
--- a/crates/api/src/test_utils.rs
+++ b/crates/api/src/test_utils.rs
@@ -50,7 +50,7 @@ pub fn app() -> Router {
     >::new(
         Arc::new(MockAuctioneer::default()),
         Arc::new(MockDatabaseService::default()),
-        Arc::new(MockGossiper::new().unwrap()),
+        Some(Arc::new(MockGossiper::new().unwrap())),
         vec![Arc::new(BlockBroadcaster::Mock(MockBlockBroadcaster::default()))],
         Arc::new(MockMultiBeaconClient::default()),
         Arc::new(ChainInfo::for_mainnet()),
@@ -147,7 +147,7 @@ pub fn builder_api_app() -> (
             Arc::new(MockDatabaseService::default()),
             Arc::new(ChainInfo::for_mainnet()),
             MockSimulator::default(),
-            Arc::new(MockGossiper::new().unwrap()),
+            Some(Arc::new(MockGossiper::new().unwrap())),
             Arc::new(RelaySigningContext::default()),
             RelayConfig::default(),
             slot_update_sender.clone(),
@@ -212,7 +212,7 @@ pub fn proposer_api_app() -> (
     >::new(
         auctioneer.clone(),
         Arc::new(MockDatabaseService::default()),
-        Arc::new(MockGossiper::new().unwrap()),
+        Some(Arc::new(MockGossiper::new().unwrap())),
         vec![Arc::new(BlockBroadcaster::Mock(MockBlockBroadcaster::default()))],
         Arc::new(MockMultiBeaconClient::default()),
         Arc::new(ChainInfo::for_mainnet()),
@@ -314,7 +314,7 @@ pub fn constraints_api_app() -> (
             database.clone(),
             Arc::new(ChainInfo::for_mainnet()),
             MockSimulator::default(),
-            Arc::new(MockGossiper::new().unwrap()),
+            Some(Arc::new(MockGossiper::new().unwrap())),
             Arc::new(RelaySigningContext::default()),
             RelayConfig::default(),
             slot_update_sender.clone(),