diff --git a/_data/chains/14.json b/_data/chains/14.json
new file mode 100644
index 00000000..08af816e
--- /dev/null
+++ b/_data/chains/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/16.json b/_data/chains/16.json
new file mode 100644
index 00000000..e65f7464
--- /dev/null
+++ b/_data/chains/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