diff --git a/_data/chains/eip155-1007.json b/_data/chains/eip155-1007.json
new file mode 100644
index 00000000..b66433b8
--- /dev/null
+++ b/_data/chains/eip155-1007.json
@@ -0,0 +1,18 @@
+{
+  "name": "Newton Testnet",
+  "chain": "NEW",
+  "network": "testnet",
+  "rpc": [
+    "https://rpc1.newchain.newtonproject.org"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Newton",
+    "symbol": "NEW",
+    "decimals": 18
+  },
+  "infoURL": "https://www.newtonproject.org/",
+  "shortName": "tnew",
+  "chainId": 1007,
+  "networkId": 1007
+}
\ No newline at end of file
diff --git a/_data/chains/eip155-1012.json b/_data/chains/eip155-1012.json
new file mode 100644
index 00000000..d77c5215
--- /dev/null
+++ b/_data/chains/eip155-1012.json
@@ -0,0 +1,18 @@
+{
+  "name": "Newton",
+  "chain": "NEW",
+  "network": "mainnet",
+  "rpc": [
+    "https://global.rpc.mainnet.newtonproject.org"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Newton",
+    "symbol": "NEW",
+    "decimals": 18
+  },
+  "infoURL": "https://www.newtonproject.org/",
+  "shortName": "new",
+  "chainId": 1012,
+  "networkId": 1012
+}
\ No newline at end of file
diff --git a/_data/chains/eip155-1139.json b/_data/chains/eip155-1139.json
new file mode 100644
index 00000000..c558969b
--- /dev/null
+++ b/_data/chains/eip155-1139.json
@@ -0,0 +1,16 @@
+{
+    "name": "MathChain",
+    "chain": "MATH",
+    "network": "mainnet",
+    "rpc": [],
+    "faucets": [],
+    "nativeCurrency": {
+      "name": "MathChain",
+      "symbol": "MATH",
+      "decimals": 18
+    },
+    "infoURL": "https://mathwallet.org",
+    "shortName": "MATH",
+    "chainId": 1139,
+    "networkId": 1139
+  }
\ No newline at end of file
diff --git a/_data/chains/eip155-1140.json b/_data/chains/eip155-1140.json
new file mode 100644
index 00000000..bd8be432
--- /dev/null
+++ b/_data/chains/eip155-1140.json
@@ -0,0 +1,16 @@
+{
+    "name": "MathChain Testnet",
+    "chain": "MATH",
+    "network": "testnet",
+    "rpc": [],
+    "faucets": [],
+    "nativeCurrency": {
+      "name": "MathChain",
+      "symbol": "MATH",
+      "decimals": 18
+    },
+    "infoURL": "https://mathwallet.org/",
+    "shortName": "tMATH",
+    "chainId": 1140,
+    "networkId": 1140
+  }
\ No newline at end of file
diff --git a/_data/chains/eip155-14.json b/_data/chains/eip155-14.json
new file mode 100644
index 00000000..08af816e
--- /dev/null
+++ b/_data/chains/eip155-14.json
@@ -0,0 +1,19 @@
+{
+  "name": "Flare Mainnet",
+  "chain": "FLR",
+  "network": "flare",
+  "rpc": [
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "Spark",
+    "symbol": "FLR",
+    "decimals": 18
+  },
+  "infoURL": "https://flare.xyz",
+  "shortName": "flr",
+  "chainId": 14,
+  "networkId": 14,
+  "slip44": 554
+}
diff --git a/_data/chains/eip155-16.json b/_data/chains/eip155-16.json
new file mode 100644
index 00000000..e65f7464
--- /dev/null
+++ b/_data/chains/eip155-16.json
@@ -0,0 +1,18 @@
+{
+  "name": "Flare Testnet Coston",
+  "chain": "FLR",
+  "network": "coston",
+  "rpc": [
+  ],
+  "faucets": [
+  ],
+  "nativeCurrency": {
+    "name": "Coston Spark",
+    "symbol": "CFLR",
+    "decimals": 18
+  },
+  "infoURL": "https://github.com/flare-eng/coston",
+  "shortName": "cflr",
+  "chainId": 16,
+  "networkId": 16
+}
\ No newline at end of file
diff --git a/_data/chains/eip155-2020.json b/_data/chains/eip155-2020.json
new file mode 100644
index 00000000..e8f40f5b
--- /dev/null
+++ b/_data/chains/eip155-2020.json
@@ -0,0 +1,16 @@
+{
+    "name": "420coin",
+    "chain": "420",
+    "network": "mainnet",
+    "rpc": [],
+    "faucets": [],
+    "nativeCurrency": {
+      "name": "Fourtwenty",
+      "symbol": "420",
+      "decimals": 18
+    },
+    "infoURL": "https://420integrated.com",
+    "shortName": "420",
+    "chainId": 2020,
+    "networkId": 2020
+}
diff --git a/_data/chains/eip155-499.json b/_data/chains/eip155-499.json
new file mode 100644
index 00000000..3f8e9b76
--- /dev/null
+++ b/_data/chains/eip155-499.json
@@ -0,0 +1,17 @@
+{
+  "name": "Rupaya",
+  "chain": "RUPX",
+  "network": "mainnet",
+  "rpc": [],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "Rupaya",
+    "symbol": "RUPX",
+    "decimals": 18
+  },
+  "infoURL": "https://www.rupx.io",
+  "shortName": "rupx",
+  "chainId": 499,
+  "networkId": 499,
+  "slip44": 499
+}
\ No newline at end of file
diff --git a/_data/chains/eip155-50.json b/_data/chains/eip155-50.json
new file mode 100644
index 00000000..2393460b
--- /dev/null
+++ b/_data/chains/eip155-50.json
@@ -0,0 +1,18 @@
+{
+  "name": "XinFin Network Mainnet",
+  "chain": "XDC",
+  "network": "mainnet",
+  "rpc": [
+    "https://rpc.xinfin.network"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "XinFin",
+    "symbol": "XDC",
+    "decimals": 18
+  },
+  "infoURL": "https://xinfin.org",
+  "shortName": "xdc",
+  "chainId": 50,
+  "networkId": 50
+}
diff --git a/_data/chains/eip155-51.json b/_data/chains/eip155-51.json
new file mode 100644
index 00000000..4c63ac40
--- /dev/null
+++ b/_data/chains/eip155-51.json
@@ -0,0 +1,18 @@
+{
+  "name": "XinFin Apothem Testnet",
+  "chain": "TXDC",
+  "network": "testnet",
+  "rpc": [
+    "https://rpc.apothem.network"
+  ],
+  "faucets": [],
+  "nativeCurrency": {
+    "name": "XinFinTest",
+    "symbol": "TXDC",
+    "decimals": 18
+  },
+  "infoURL": "https://xinfin.org",
+  "shortName": "TXDC",
+  "chainId": 51,
+  "networkId": 51
+}