diff --git a/chains-meta.yaml b/chains-meta.yaml
index 4d5abef..b8594ce 100644
--- a/chains-meta.yaml
+++ b/chains-meta.yaml
@@ -1293,3 +1293,31 @@
   chain-id: 9372
   explorers:
     - https://explorer.testnet.oasys.games
+- currency:
+    name: Flow
+    symbol: FLOW
+    decimals: 18
+  chain-id: 747
+  explorers:
+    - https://evm.flowscan.io
+- currency:
+    name: Flow
+    symbol: FLOW
+    decimals: 18
+  chain-id: 545
+  explorers:
+    - https://evm-testnet.flowscan.io
+- currency:
+    name: HBAR
+    symbol: HBAR
+    decimals: 18
+  chain-id: 295
+  explorers:
+    - https://hashscan.io
+- currency:
+    name: HBAR
+    symbol: HBAR
+    decimals: 18
+  chain-id: 296
+  explorers:
+    - https://hashscan.io/testnet
diff --git a/chains.yaml b/chains.yaml
index 3ed83dc..e59c74c 100644
--- a/chains.yaml
+++ b/chains.yaml
@@ -3221,7 +3221,7 @@ chain-settings:
           code: TEMPO_MODERATO_TESTNET
           grpcId: 10184
           chain-id: 0xa5bf
-          short-names: [tempo-moderato-testnet]        
+          short-names: [tempo-moderato-testnet]
     - id: xdc
       label: XDC
       type: eth
@@ -3798,4 +3798,49 @@ chain-settings:
           short-names: [moca-testnet]
           chain-id: 0x366a8
           grpcId: 10188
-
+    - id: flow
+      label: Flow
+      type: eth
+      settings:
+        expected-block-time: 1s
+        options:
+          validate-peers: false
+        lags:
+          syncing: 40
+          lagging: 20
+      chains:
+        - id: Mainnet
+          priority: 100
+          code: FLOW_MAINNET
+          short-names: [flow, flow-mainnet]
+          chain-id: 0x2eb
+          grpcId: 1152
+        - id: Testnet
+          priority: 10
+          code: FLOW_TESTNET
+          short-names: [flow-testnet]
+          chain-id: 0x221
+          grpcId: 10189
+    - id: hedera
+      label: Hedera
+      type: eth
+      settings:
+        expected-block-time: 2s
+        options:
+          validate-peers: false
+        lags:
+          syncing: 40
+          lagging: 20
+      chains:
+        - id: Mainnet
+          priority: 100
+          code: HEDERA_MAINNET
+          short-names: [hedera, hedera-mainnet]
+          chain-id: 0x127
+          grpcId: 1153
+        - id: Testnet
+          priority: 10
+          code: HEDERA_TESTNET
+          short-names: [hedera-testnet]
+          chain-id: 0x128
+          grpcId: 10190