chains metadata updated (#3792)

Co-authored-by: aelmanaa <4503543+aelmanaa@users.noreply.github.com>
Co-authored-by: devin distefano <devin.distefano@smartcontract.com>

Author: 3 people

src/scripts/reference/chains.json

@@ -315,7 +315,9 @@
       "https://polygon-bor-rpc.publicnode.com",
       "wss://polygon-bor-rpc.publicnode.com",
       "https://polygon.gateway.tenderly.co",
-      "wss://polygon.gateway.tenderly.co"
+      "wss://polygon.gateway.tenderly.co",
+      "https://rpc.satelink.network/rpc/polygon",
+      "https://rpcfree.com/polygon-rpc"
     ],
     "faucets": [],
     "nativeCurrency": { "name": "POL", "symbol": "POL", "decimals": 18 },
@@ -1520,15 +1522,26 @@
   },
   {
     "name": "MegaETH Mainnet",
-    "chain": "ETH",
-    "nativeCurrency": { "name": "Ether", "symbol": "ETH", "decimals": 18 },
-    "rpc": [],
+    "chain": "MegaETH",
+    "rpc": ["https://mainnet.megaeth.com/rpc", "wss://mainnet.megaeth.com/ws"],
     "faucets": [],
-    "explorers": [],
+    "nativeCurrency": { "name": "Ether", "symbol": "ETH", "decimals": 18 },
     "infoURL": "https://megaeth.com",
     "shortName": "megaeth",
     "chainId": 4326,
-    "networkId": 4326
+    "networkId": 4326,
+    "icon": "megaeth",
+    "explorers": [
+      { "name": "MegaETH Etherscan", "url": "https://mega.etherscan.io", "standard": "EIP3091" },
+      {
+        "name": "MegaETH Blockscout",
+        "url": "https://megaeth.blockscout.com",
+        "icon": "blockscout",
+        "standard": "EIP3091"
+      }
+    ],
+    "parent": { "type": "L2", "chain": "eip155-1", "bridges": [{ "url": "https://rabbithole.megaeth.com" }] },
+    "status": "active"
   },
   {
     "name": "World Chain Sepolia Testnet",
@@ -1646,15 +1659,20 @@
   },
   {
     "name": "MegaETH Testnet",
-    "chain": "ETH",
-    "nativeCurrency": { "name": "MegaETH Testnet Ether", "symbol": "ETH", "decimals": 18 },
-    "rpc": ["https://carrot.megaeth.com/rpc", "wss://carrot.megaeth.com/ws"],
-    "faucets": [],
-    "infoURL": "https://testnet.megaeth.com",
-    "shortName": "megatest",
+    "chain": "MegaETH",
+    "rpc": ["https://carrot.megaeth.com/rpc"],
+    "faucets": ["https://testnet.megaeth.com"],
+    "nativeCurrency": { "name": "Ether", "symbol": "ETH", "decimals": 18 },
+    "infoURL": "https://megaeth.com",
+    "shortName": "megaeth-testnet",
     "chainId": 6343,
     "networkId": 6343,
-    "slip44": 1
+    "icon": "megaeth",
+    "explorers": [
+      { "name": "MegaETH Testnet Explorer", "url": "https://testnet-mega.etherscan.io", "standard": "EIP3091" }
+    ],
+    "parent": { "type": "L2", "chain": "eip155-11155111" },
+    "status": "active"
   },
   {
     "name": "Kaia Mainnet",