diff --git a/_data/chains/eip155-1666600000.json b/_data/chains/eip155-1666600000.json
new file mode 100644
index 00000000..01b727eb
--- /dev/null
+++ b/_data/chains/eip155-1666600000.json
@@ -0,0 +1,19 @@
+{
+  "name": "Harmony Mainnet Shard 0",
+  "chain": "Harmony",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc.s0.t.hmny.io"
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "ONE",
+    "symbol": "ONE",
+    "decimals": 18
+  },
+  "infoURL": "https://www.harmony.one/",
+  "shortName": "hmy-s0",
+  "chainId": 1666600000,
+  "networkId": 1666600000
+}
diff --git a/_data/chains/eip155-1666600001.json b/_data/chains/eip155-1666600001.json
new file mode 100644
index 00000000..8caa1872
--- /dev/null
+++ b/_data/chains/eip155-1666600001.json
@@ -0,0 +1,19 @@
+{
+  "name": "Harmony Mainnet Shard 1",
+  "chain": "Harmony",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc.s1.t.hmny.io"
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "ONE",
+    "symbol": "ONE",
+    "decimals": 18
+  },
+  "infoURL": "https://www.harmony.one/",
+  "shortName": "hmy-s1",
+  "chainId": 1666600001,
+  "networkId": 1666600001
+}
diff --git a/_data/chains/eip155-1666600002.json b/_data/chains/eip155-1666600002.json
new file mode 100644
index 00000000..e21f9021
--- /dev/null
+++ b/_data/chains/eip155-1666600002.json
@@ -0,0 +1,19 @@
+{
+  "name": "Harmony Mainnet Shard 2",
+  "chain": "Harmony",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc.s2.t.hmny.io"
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "ONE",
+    "symbol": "ONE",
+    "decimals": 18
+  },
+  "infoURL": "https://www.harmony.one/",
+  "shortName": "hmy-s2",
+  "chainId": 1666600002,
+  "networkId": 1666600002
+}
diff --git a/_data/chains/eip155-1666600003.json b/_data/chains/eip155-1666600003.json
new file mode 100644
index 00000000..49d813a1
--- /dev/null
+++ b/_data/chains/eip155-1666600003.json
@@ -0,0 +1,19 @@
+{
+  "name": "Harmony Mainnet Shard 3",
+  "chain": "Harmony",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc.s3.t.hmny.io"
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "ONE",
+    "symbol": "ONE",
+    "decimals": 18
+  },
+  "infoURL": "https://www.harmony.one/",
+  "shortName": "hmy-s3",
+  "chainId": 1666600003,
+  "networkId": 1666600003
+}