diff --git a/blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/info.json b/blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/info.json
new file mode 100644
index 0000000000000..f16975204c810
--- /dev/null
+++ b/blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/info.json
@@ -0,0 +1,8 @@
+{
+    "name": "Wrapped Ether",
+    "symbol": "WETH",
+    "decimals": 18,
+    "website": "https://weth.io/",
+    "status": "active",
+    "id": "0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB"
+}
\ No newline at end of file
diff --git a/blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/logo.png b/blockchains/avalanchec/assets/0x49D5c2BdFfac6CE2BFdB6640F4F80f226bc10bAB/logo.png
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index 0000000000000..bf957d38c766d
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diff --git a/blockchains/base/assets/0x4200000000000000000000000000000000000006/info.json b/blockchains/base/assets/0x4200000000000000000000000000000000000006/info.json
new file mode 100644
index 0000000000000..3b16f337cb660
--- /dev/null
+++ b/blockchains/base/assets/0x4200000000000000000000000000000000000006/info.json
@@ -0,0 +1,21 @@
+{
+    "name": "Wrapped Ether",
+    "symbol": "WETH",
+    "type": "OPTIMISM",
+    "decimals": 18,
+    "description": "wETH is wrapped ETH",
+    "website": "https://weth.io/",
+    "explorer": "https://optimistic.etherscan.io/token/0x4200000000000000000000000000000000000006",
+    "status": "active",
+    "id": "0x4200000000000000000000000000000000000006",
+    "links": [
+        {
+            "name": "coinmarketcap",
+            "url": "https://coinmarketcap.com/currencies/weth/"
+        },
+        {
+            "name": "coingecko",
+            "url": "https://coingecko.com/coins/weth/"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/blockchains/base/assets/0x4200000000000000000000000000000000000006/logo.png b/blockchains/base/assets/0x4200000000000000000000000000000000000006/logo.png
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index 0000000000000..bf957d38c766d
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diff --git a/blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/info.json b/blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/info.json
new file mode 100644
index 0000000000000..7db4176c7eb01
--- /dev/null
+++ b/blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/info.json
@@ -0,0 +1,7 @@
+{
+  "name": "USD Coin",
+  "symbol": "USDC",
+  "type": "ERC20",
+  "decimals": 6,
+  "id": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85"
+}
\ No newline at end of file
diff --git a/blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/logo.png b/blockchains/optimism/assets/0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85/logo.png
new file mode 100644
index 0000000000000..eafbaac194aa7
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diff --git a/blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/info.json b/blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/info.json
new file mode 100644
index 0000000000000..46355b4a482f1
--- /dev/null
+++ b/blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/info.json
@@ -0,0 +1,7 @@
+{
+  "name": "USD Coin",
+  "symbol": "USDC",
+  "type": "ERC20",
+  "decimals": 6,
+  "id": "0x3c499c542cef5e3811e1192ce70d8cc03d5c3359"
+}
\ No newline at end of file
diff --git a/blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/logo.png b/blockchains/polygon/assets/0x3c499c542cef5e3811e1192ce70d8cc03d5c3359/logo.png
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index 0000000000000..eafbaac194aa7
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