diff --git a/.env.example b/.env.example
index 2ccd357..ae990bc 100644
--- a/.env.example
+++ b/.env.example
@@ -4,10 +4,21 @@ PRIVATE_KEY=
 
 ## Arbitrum
 ### key
-ABISCAN_API_KEY=
-### arbitrum-sepolia rpc
+ARBISCAN_API_KEY=
+### arbitrumSepolia rpc
 ARBITRUM_SEPOLIA_RPC=
 
-## Localhost
+## BASE
+### key
+BASE_API_KEY=
+### baseSepolia rpc
+BASE_SEPOLIA_RPC=
+
+## Optimism
+### key
+OP_API_KEY=
+### baseSepolia rpc
+OP_SEPOLIA_RPC=
+
 ### rpc
 RPC_URL=http://localhost:8545
\ No newline at end of file
diff --git a/deployment.config.js b/deployment.config.js
index a78c624..20b5a33 100644
--- a/deployment.config.js
+++ b/deployment.config.js
@@ -9,7 +9,19 @@ module.exports = {
     config: config,
   },
   localhost: { lockFile: "./local.deployment-lock.json", config: config },
-  "arbitrum-sepolia": {
+  arbitrumSepolia: {
+    lockFile: "./deployment-lock.json",
+    verify: true,
+    plugins: [VerifyPlugin],
+    config: config,
+  },
+  baseSepolia: {
+    lockFile: "./deployment-lock.json",
+    verify: true,
+    plugins: [VerifyPlugin],
+    config: config,
+  },
+  opSepolia: {
     lockFile: "./deployment-lock.json",
     verify: true,
     plugins: [VerifyPlugin],
diff --git a/hardhat.config.js b/hardhat.config.js
index 3a5e71a..b2ba672 100644
--- a/hardhat.config.js
+++ b/hardhat.config.js
@@ -33,25 +33,53 @@ module.exports = {
     localhost: {
       deployment: deployments.localhost,
     },
-    "arbitrum-sepolia": {
-      url: config?.RPC_URL || DEFAULT_RPC,
+    arbitrumSepolia: {
+      url: config?.ARBITRUM_SEPOLIA_RPC || DEFAULT_RPC,
       accounts: deployerAccounts,
-      deployment: deployments["arbitrum-sepolia"],
+      deployment: deployments.arbitrumSepolia,
+    },
+    baseSepolia: {
+      url: config?.parsed?.BASE_SEPOLIA_RPC || DEFAULT_RPC,
+      accounts: deployerAccounts,
+      deployment: deployments.baseSepolia,
+    },
+    opSepolia: {
+      url: config?.parsed?.OP_SEPOLIA_RPC || DEFAULT_RPC,
+      accounts: deployerAccounts,
+      deployment: deployments.opSepolia,
     },
   },
   etherscan: {
     apiKey: {
-      "arbitrum-sepolia": config?.parsed?.ABISCAN_API_KEY,
+      baseSepolia: config?.parsed?.BASE_API_KEY,
+      arbitrumSepolia: config?.parsed?.ARBISCAN_API_KEY,
+      opSepolia: config?.parsed?.OP_API_KEY,
     },
     customChains: [
       {
-        network: "arbitrum-sepolia",
+        network: "arbitrumSepolia",
         chainId: 421614,
         urls: {
           apiURL: "https://api-sepolia.arbiscan.io/api",
           browserURL: "https://sepolia-explorer.arbitrum.io",
         },
       },
+      {
+        network: "baseSepolia",
+        chainId: 84532,
+        urls: {
+          apiURL: "https://api-sepolia.basescan.org/api",
+          browserURL: "https://sepolia.basescan.org/",
+        },
+      },
+      {
+        network: "opSepolia",
+        chainId: 11155420,
+        urls: {
+          apiURL: "​https://api-sepolia-optimistic.etherscan.io/api​",
+          browserURL: "https://sepolia-optimistic.etherscan.io",
+        },
+      },
     ],
   },
 };