diff --git a/constants/additionalChainRegistry/chainid-171717.js b/constants/additionalChainRegistry/chainid-171717.js
new file mode 100644
index 0000000000..b8bb665b78
--- /dev/null
+++ b/constants/additionalChainRegistry/chainid-171717.js
@@ -0,0 +1,23 @@
+{
+  "name": "W Chain Mainnet",
+  "chain": "WCN",
+  "rpc": [
+    "https://rpc.w-chain.com",
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "W Coin",
+    "symbol": "WCO",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "infoURL": "https://w-chain.com",
+  "shortName": "wcn",
+  "chainId": 171717,
+  "networkId": 171717,
+  "icon": "wco",
+  "explorers": [{
+    "name": "W Scan",
+    "url": "https://scan.w-chain.com"
+  }]
+}