diff --git a/chains/mainnet/andromeda.json b/chains/mainnet/andromeda.json
new file mode 100644
index 0000000..a305af5
--- /dev/null
+++ b/chains/mainnet/andromeda.json
@@ -0,0 +1,69 @@
+{
+    "chain_name": "andromeda",
+    "api": [
+        {
+            "address": "https://api.andromeda-1.andromeda.aviaone.com/",
+            "provider": "AVIAONE"
+        },
+        {
+            "address": "https://andromeda-api.stake-town.com:443",
+            "provider": "StakeTown"
+        },
+        {
+            "address": "https://andro.api.m.stavr.tech",
+            "provider": "🔥STAVR🔥"
+        },
+        {
+            "address": "https://andromeda.api.kjnodes.com",
+            "provider": "kjnodes"
+        },
+        {
+            "address": "https://andromeda-api.lavenderfive.com:443",
+            "provider": "Lavender.Five Nodes 🐝"
+        },
+        {
+            "address": "https://andromeda-api.genznodes.dev",
+            "provider": "genznodes"
+        }
+    ],
+    "rpc": [
+        {
+            "address": "https://rpc.andromeda-1.andromeda.aviaone.com",
+            "provider": "AVIAONE"
+        },
+        {
+            "address": "https://andromeda.rpc.kjnodes.com",
+            "provider": "kjnodes"
+        },
+        {
+            "address": "https://andromeda-rpc.lavenderfive.com:443",
+            "provider": "Lavender.Five Nodes 🐝"
+        },
+        {
+            "address": "https://andromeda-rpc.stake-town.com:443",
+            "provider": "StakeTown"
+        },
+        {
+            "address": "https://andro.rpc.m.stavr.tech",
+            "provider": "🔥STAVR🔥"
+        },
+        {
+            "address": "https://andromeda-rpc.genznodes.dev",
+            "provider": "genznodes"
+        }
+    ],
+    "sdk_version": "0.47.5",
+    "coin_type": "118",
+    "min_tx_fee": "2000",
+    "addr_prefix": "andr",
+    "logo": "/logos/andromeda.png",
+    "assets": [
+        {
+            "base": "uandr",
+            "symbol": "ANDR",
+            "exponent": "6",
+            "coingecko_id": "andromeda-2",
+            "logo": "/logos/andromeda.png"
+        }
+    ]
+}
\ No newline at end of file
diff --git a/chains/mainnet/coreum.json b/chains/mainnet/coreum.json
new file mode 100644
index 0000000..5214fe5
--- /dev/null
+++ b/chains/mainnet/coreum.json
@@ -0,0 +1,81 @@
+{
+  "chain_name": "coreum",
+  "api": [
+    {
+      "address": "https://full-node.mainnet-1.coreum.dev:1317",
+      "provider": "Coreum Foundation"
+    },
+    {
+      "address": "https://coreum-api.genznodes.dev",
+      "provider": "genznodes"
+    },
+    {
+      "address": "https://coreum-rest.publicnode.com",
+      "provider": "Allnodes ⚡️ Nodes & Staking"
+    },
+    {
+      "address": "https://rest-coreum.ecostake.com",
+      "provider": "ecostake"
+    },
+    {
+      "address": "https://coreum.api.silknodes.io",
+      "provider": "Silk Nodes"
+    },
+    {
+      "address": "https://api.mainnet.solonation.cf",
+      "provider": "solonation"
+    }
+  ],
+  "rpc": [
+    {
+      "address": "https://full-node.mainnet-1.coreum.dev:26657",
+      "provider": "Coreum Foundation"
+    },
+    {
+      "address": "https://full-node-uranium.mainnet-1.coreum.dev:26657",
+      "provider": "Coreum Foundation"
+    },
+    {
+      "address": "https://full-node-curium.mainnet-1.coreum.dev:26657",
+      "provider": "Coreum Foundation"
+    },
+    {
+      "address": "https://full-node-californium.mainnet-1.coreum.dev:26657",
+      "provider": "Coreum Foundation"
+    },
+    {
+      "address": "https://coreum-rpc.genznodes.dev",
+      "provider": "genznodes"
+    },
+    {
+      "address": "https://coreum-rpc.publicnode.com:443",
+      "provider": "Allnodes ⚡️ Nodes & Staking"
+    },
+    {
+      "address": "https://rpc-coreum.ecostake.com",
+      "provider": "ecostake"
+    },
+    {
+      "address": "https://coreum.rpc.silknodes.io",
+      "provider": "Silk Nodes"
+    },
+    {
+      "address": "https://rpc.mainnet.solonation.cf",
+      "provider": "solonation"
+    }
+  ],
+  "sdk_version": "0.47.5",
+  "coin_type": "990",
+  "min_tx_fee": "5000",
+  "addr_prefix": "core",
+  "logo": "/logos/coreum.png",
+  "assets": [
+    {
+      "base": "ucore",
+      "symbol": "CORE",
+      "exponent": "6",
+      "coingecko_id": "coreum",
+      "logo": "/logos/coreum.png"
+    }
+  ]
+}
\ No newline at end of file
diff --git a/chains/mainnet/quasar.json b/chains/mainnet/quasar.json
index d81b588..d345f8f 100644
--- a/chains/mainnet/quasar.json
+++ b/chains/mainnet/quasar.json
@@ -21,7 +21,7 @@
         "base": "uqsr",
         "symbol": "QSR",
         "exponent": 6,
-        "coingecko_id": "",
+        "coingecko_id": "quasar-2",
         "logo": "/logos/quasar.png"
       }
     ]
diff --git a/logos/coreum.png b/logos/coreum.png
new file mode 100644
index 0000000..5ff4319
Binary files /dev/null and b/logos/coreum.png differ