diff --git a/packages/network/src/constants.ts b/packages/network/src/constants.ts
index 8356a459d..a524cf596 100644
--- a/packages/network/src/constants.ts
+++ b/packages/network/src/constants.ts
@@ -136,7 +136,13 @@ export enum ChainId {
 
   // MOONBEAM
   MOONBEAM = 1284,
-  MOONBASE_ALPHA = 1287
+  MOONBASE_ALPHA = 1287,
+
+  //MONAD_TESTNET
+  MONAD_TESTNET = 10143,
+
+  //SOMNIA_TESTNET
+  SOMNIA_TESTNET = 50312
 }
 
 export const networks: Record<ChainId, NetworkMetadata> = {
@@ -1109,6 +1115,41 @@ export const networks: Record<ChainId, NetworkMetadata> = {
       name: 'Tez',
       decimals: 18
     }
+  },
+  [ChainId.MONAD_TESTNET]: {
+    chainId: ChainId.MONAD_TESTNET,
+    type: NetworkType.TESTNET,
+    name: 'monad-testnet',
+    title: 'MONAD Testnet',
+    logoURI: `https://assets.sequence.info/images/networks/medium/${ChainId.MONAD_TESTNET}.webp`,
+    testnet: true,
+    blockExplorer: {
+      name: 'MONAD Testnet Explorer',
+      rootUrl: 'https://testnet.monadexplorer.com/'
+    },
+    nativeToken: {
+      symbol: 'MON',
+      name: 'MON',
+      decimals: 18
+    }
+  },
+
+  [ChainId.SOMNIA_TESTNET]: {
+    chainId: ChainId.SOMNIA_TESTNET,
+    type: NetworkType.TESTNET,
+    name: 'somnia-testnet',
+    title: 'SOMNIA Testnet',
+    logoURI: `https://assets.sequence.info/images/networks/medium/${ChainId.SOMNIA_TESTNET}.webp`,
+    testnet: true,
+    blockExplorer: {
+      name: 'SOMNIA Testnet Explorer',
+      rootUrl: 'https://somnia-testnet.socialscan.io/'
+    },
+    nativeToken: {
+      symbol: 'STT',
+      name: 'STT',
+      decimals: 18
+    }
   }
 }