diff --git a/_data/chains/eip155-4352.json b/_data/chains/eip155-4352.json
new file mode 100644
index 000000000000..2245027d6557
--- /dev/null
+++ b/_data/chains/eip155-4352.json
@@ -0,0 +1,35 @@
+{
+  "name": "MemeCore",
+  "title": "MemeCore",
+  "chain": "MemeCore",
+  "icon": "memecore",
+  "rpc": ["https://rpc.memecore.net", "wss://ws.memecore.net"],
+  "nativeCurrency": {
+    "name": "M",
+    "symbol": "M",
+    "decimals": 18
+  },
+  "features": [{ "name": "EIP155" }, { "name": "EIP1559" }],
+  "faucets": [],
+  "infoURL": "https://memecore.com",
+  "shortName": "m",
+  "chainId": 4352,
+  "networkId": 4352,
+  "explorers": [
+    {
+      "name": "OKX-MemeCore",
+      "url": "https://www.okx.com/web3/explorer/memecore",
+      "standard": "EIP3091"
+    },
+    {
+      "name": "MemeCoreScan",
+      "url": "https://memecorescan.io",
+      "standard": "EIP3091"
+    },
+    {
+      "name": "MemeCore explorer",
+      "url": "https://blockscout.memecore.com",
+      "standard": "EIP3091"
+    }
+  ]
+}
diff --git a/_data/chains/eip155-43521.json b/_data/chains/eip155-43521.json
index d3e3fda506bd..9d1a0245e98d 100644
--- a/_data/chains/eip155-43521.json
+++ b/_data/chains/eip155-43521.json
@@ -29,6 +29,11 @@
       "name": "MemeCoreScan-Formicarium",
       "url": "https://formicarium.memecorescan.io",
       "standard": "EIP3091"
+    },
+    {
+      "name": "MemeCore Testnet Formicarium Explorer",
+      "url": "https://formicarium.blockscout.memecore.com",
+      "standard": "EIP3091"
     }
   ]
 }