diff --git a/_data/chains/eip155-23118.json b/_data/chains/eip155-23118.json
new file mode 100644
index 00000000..ad3f6326
--- /dev/null
+++ b/_data/chains/eip155-23118.json
@@ -0,0 +1,23 @@
+{
+  "name": "Opside Testnet",
+  "chain": "Opside",
+  "rpc": ["https://testrpc.opside.network"],
+  "faucets": ["https://faucet.opside.network"],
+  "nativeCurrency": {
+    "name": "IDE",
+    "symbol": "IDE",
+    "decimals": 18
+  },
+  "infoURL": "https://opside.network",
+  "shortName": "opside",
+  "chainId": 23118,
+  "networkId": 23118,
+  "icon": "opside",
+  "explorers": [
+    {
+      "name": "opsideInfo",
+      "url": "https://opside.info",
+      "standard": "EIP3091"
+    }
+  ]
+}
diff --git a/_data/icons/opside.json b/_data/icons/opside.json
new file mode 100644
index 00000000..ff744c15
--- /dev/null
+++ b/_data/icons/opside.json
@@ -0,0 +1,8 @@
+[
+  {
+    "url": "ipfs://QmeCyZeibUoHNoYGzy1GkzH2uhxyRHKvH51PdaUMer4VTo",
+    "width": 591,
+    "height": 591,
+    "format": "png"
+  }
+]