diff --git a/.github/workflows/create-asana-attachment.yaml b/.github/workflows/create-asana-attachment.yaml
index 8c538313..35adcb17 100644
--- a/.github/workflows/create-asana-attachment.yaml
+++ b/.github/workflows/create-asana-attachment.yaml
@@ -13,6 +13,8 @@ jobs:
         with:
           asana-secret: ${{ secrets.ASANA_SECRET }}
           allowed-projects: |
-            1201812548509877
+            1207145524635866
+            1207160002492686
+            1203400194794992
       - name: Log output status
-        run: echo "Status is ${{ steps.postAttachment.outputs.status }}"
\ No newline at end of file
+        run: echo "Status is ${{ steps.postAttachment.outputs.status }}"
diff --git a/adapters/aptos-wallet-adapter-plugin/CHANGELOG.md b/adapters/aptos-wallet-adapter-plugin/CHANGELOG.md
index 97313aa1..dab6f50f 100644
--- a/adapters/aptos-wallet-adapter-plugin/CHANGELOG.md
+++ b/adapters/aptos-wallet-adapter-plugin/CHANGELOG.md
@@ -1,5 +1,19 @@
 # @blocto/aptos-wallet-adapter-plugin
 
+## 0.2.10
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3
+
+## 0.2.10-beta.0
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3-beta.0
+
 ## 0.2.9
 
 ### Patch Changes
diff --git a/adapters/aptos-wallet-adapter-plugin/package.json b/adapters/aptos-wallet-adapter-plugin/package.json
index c0b92eb6..d11341b2 100644
--- a/adapters/aptos-wallet-adapter-plugin/package.json
+++ b/adapters/aptos-wallet-adapter-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@blocto/aptos-wallet-adapter-plugin",
-  "version": "0.2.9",
+  "version": "0.2.10",
   "description": "Blocto Wallet plugin to use with Aptos Wallet Adapter",
   "author": "Blocto Wallet",
   "main": "./dist/index.js",
@@ -19,7 +19,7 @@
   },
   "dependencies": {
     "@aptos-labs/wallet-adapter-core": "^2.2.0",
-    "@blocto/sdk": "^0.10.0",
+    "@blocto/sdk": "^0.10.3",
     "aptos": "^1.9.1"
   },
   "devDependencies": {
diff --git a/adapters/rainbowkit-connector/CHANGELOG.md b/adapters/rainbowkit-connector/CHANGELOG.md
index 92b6fd0f..3745872e 100644
--- a/adapters/rainbowkit-connector/CHANGELOG.md
+++ b/adapters/rainbowkit-connector/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @blocto/rainbowkit-connector
 
+## 2.0.2
+
+### Patch Changes
+
+- @blocto/wagmi-connector@2.0.4
+
+## 2.0.2-beta.0
+
+### Patch Changes
+
+- @blocto/wagmi-connector@2.0.4-beta.0
+
 ## 2.0.1
 
 ### Patch Changes
diff --git a/adapters/rainbowkit-connector/package.json b/adapters/rainbowkit-connector/package.json
index 182a1999..dc5b8920 100644
--- a/adapters/rainbowkit-connector/package.json
+++ b/adapters/rainbowkit-connector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@blocto/rainbowkit-connector",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "description": "blocto wallet connector to use rainbowkit",
   "author": "Blocto Wallet",
   "main": "./dist/index.js",
@@ -34,7 +34,7 @@
   },
   "dependencies": {
     "@rainbow-me/rainbowkit": "^2.0.5",
-    "@blocto/wagmi-connector": "^2.0.3"
+    "@blocto/wagmi-connector": "^2.0.4"
   },
   "devDependencies": {
     "@types/jest": "^29.5.2",
diff --git a/adapters/wagmi-connector/CHANGELOG.md b/adapters/wagmi-connector/CHANGELOG.md
index e5979c3a..5d7c037f 100644
--- a/adapters/wagmi-connector/CHANGELOG.md
+++ b/adapters/wagmi-connector/CHANGELOG.md
@@ -1,5 +1,19 @@
 # @blocto/wagmi-connector
 
+## 2.0.4
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3
+
+## 2.0.4-beta.0
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3-beta.0
+
 ## 2.0.3
 
 ### Patch Changes
diff --git a/adapters/wagmi-connector/package.json b/adapters/wagmi-connector/package.json
index c2dbabe4..8faa9d3d 100644
--- a/adapters/wagmi-connector/package.json
+++ b/adapters/wagmi-connector/package.json
@@ -2,7 +2,7 @@
   "name": "@blocto/wagmi-connector",
   "description": "Blocto wallet connector extend from wagmi Connector",
   "author": "Calvin Chang",
-  "version": "2.0.3",
+  "version": "2.0.4",
   "type": "module",
   "main": "./dist/index.umd.cjs",
   "module": "./dist/index.js",
@@ -32,7 +32,7 @@
     "/dist"
   ],
   "dependencies": {
-    "@blocto/sdk": "^0.10.0"
+    "@blocto/sdk": "^0.10.3"
   },
   "peerDependencies": {
     "@wagmi/core": "^2.2.0",
diff --git a/adapters/web3-react-connector/CHANGELOG.md b/adapters/web3-react-connector/CHANGELOG.md
index 7fb4a62f..926505ec 100644
--- a/adapters/web3-react-connector/CHANGELOG.md
+++ b/adapters/web3-react-connector/CHANGELOG.md
@@ -1,5 +1,19 @@
 # @blocto/web3-react-connector
 
+## 1.0.8
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3
+
+## 1.0.8-beta.0
+
+### Patch Changes
+
+- Updated dependencies [e066144]
+  - @blocto/sdk@0.10.3-beta.0
+
 ## 1.0.7
 
 ### Patch Changes
diff --git a/adapters/web3-react-connector/package.json b/adapters/web3-react-connector/package.json
index 8be0ab73..3621baa5 100644
--- a/adapters/web3-react-connector/package.json
+++ b/adapters/web3-react-connector/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@blocto/web3-react-connector",
-  "version": "1.0.7",
+  "version": "1.0.8",
   "description": "A Blocto SDK connector for web3-react",
   "main": "./dist/index.js",
   "module": "./dist/index.mjs",
@@ -43,7 +43,7 @@
     "url": "git://github.com/portto/blocto-sdk.git"
   },
   "dependencies": {
-    "@blocto/sdk": "^0.10.0",
+    "@blocto/sdk": "^0.10.3",
     "@web3-react/types": "^8.1.2-beta.0"
   },
   "devDependencies": {
diff --git a/packages/blocto-sdk/CHANGELOG.md b/packages/blocto-sdk/CHANGELOG.md
index 72c01f8c..34f6a3dc 100644
--- a/packages/blocto-sdk/CHANGELOG.md
+++ b/packages/blocto-sdk/CHANGELOG.md
@@ -1,5 +1,17 @@
 # @blocto/sdk
 
+## 0.10.3
+
+### Patch Changes
+
+- e066144: support Merlin Chain (BTC L2)
+
+## 0.10.3-beta.0
+
+### Patch Changes
+
+- e066144: support Merlin Chain (BTC L2)
+
 ## 0.10.2
 
 ### Patch Changes
diff --git a/packages/blocto-sdk/package.json b/packages/blocto-sdk/package.json
index 8705c00c..f6156632 100644
--- a/packages/blocto-sdk/package.json
+++ b/packages/blocto-sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@blocto/sdk",
-  "version": "0.10.2",
+  "version": "0.10.3",
   "repository": "git@github.com:portto/blocto-sdk.git",
   "author": "Chiaki.C",
   "license": "MIT",
diff --git a/packages/blocto-sdk/src/constants.ts b/packages/blocto-sdk/src/constants.ts
index 13af16a6..bc485e97 100644
--- a/packages/blocto-sdk/src/constants.ts
+++ b/packages/blocto-sdk/src/constants.ts
@@ -69,7 +69,12 @@ export const ETH_RPC_LIST: Mapping = {
   // Blast
   81457: 'https://rpc.blast.io',
   // Blast Sepolia Testnet
-  168587773: 'https://sepolia.blast.io'
+  168587773: 'https://sepolia.blast.io',
+
+  // Merlin Chain
+  4200: 'https://rpc.merlinchain.io',
+  // Merlin Testnet
+  686868: 'https://testnet-rpc.merlinchain.io',
 };
 
 export const ETH_ENV_WALLET_SERVER_MAPPING: Mapping = {