diff --git a/_data/chains/eip155-2100.json b/_data/chains/eip155-2100.json
new file mode 100644
index 00000000..8926900f
--- /dev/null
+++ b/_data/chains/eip155-2100.json
@@ -0,0 +1,23 @@
+{
+  "name": "Ecoball Mainnet",
+  "chain": "ECO",
+  "network": "mainnet",
+  "rpc": [
+	"https://api.ecoball.org/ecoball/"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Ecoball Coin",
+    "symbol": "ECO",
+    "decimals": 18
+  },
+  "infoURL": "https://ecoball.org",
+  "shortName": "eco",
+  "chainId": 2100,
+  "networkId": 2100,
+  "explorers": [{
+    "name": "Ecoball Explorer",
+    "url": "https://scan.ecoball.org/",
+    "standard": "EIP3091"
+  }]
+}
diff --git a/_data/chains/eip155-2101.json b/_data/chains/eip155-2101.json
new file mode 100644
index 00000000..a9d9cf77
--- /dev/null
+++ b/_data/chains/eip155-2101.json
@@ -0,0 +1,23 @@
+{
+  "name": "Ecoball Testnet Espuma",
+  "chain": "ECO",
+  "network": "espuma",
+  "rpc": [
+	"https://api.ecoball.org/espuma/"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Espuma Coin",
+    "symbol": "ECO",
+    "decimals": 18
+  },
+  "infoURL": "https://ecoball.org",
+  "shortName": "esp",
+  "chainId": 2101,
+  "networkId": 2101,
+  "explorers": [{
+    "name": "Ecoball Testnet Explorer",
+    "url": "https://espuma-scan.ecoball.org/",
+    "standard": "EIP3091"
+  }]
+}