diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8fdbe7c..25d6b99 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,28 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
+## [0.46] (2025-03-06)
+[0.46]: https://github.com/CoboGlobal/cobo-python-api/compare/0.45...0.46
+### Added
+- Add babylon claim rewards interface. https://github.com/CoboGlobal/cobo-python-api/pull/106
+- Add babylon register staking interface. https://github.com/CoboGlobal/cobo-python-api/pull/105
+
+## [0.45] (2025-02-21)
+[0.45]: https://github.com/CoboGlobal/cobo-python-api/compare/0.44...0.45
+### Added
+- Add babylon airdrop interface. https://github.com/CoboGlobal/cobo-python-api/pull/101
+
+## [0.44] (2024-09-02)
+[0.44]: https://github.com/CoboGlobal/cobo-python-api/compare/0.43...0.44
+### Added
+- Add New API `babylon_unbonding` and `babylon_withdraw` for MPC Wallet. https://github.com/CoboGlobal/cobo-python-api/pull/96
+- The method of the `estimate_fee` API for the MPC wallet has been changed from GET to POST. https://github.com/CoboGlobal/cobo-python-api/pull/97
+
+## [0.43] (2024-08-14)
+[0.43]: https://github.com/CoboGlobal/cobo-python-api/compare/0.42...0.43
+### Added
+- Add New API `babylon_drop_staking` for MPC Wallet. https://github.com/CoboGlobal/cobo-python-api/pull/94
+
 ## [0.42] (2024-07-15)
 [0.42]: https://github.com/CoboGlobal/cobo-python-api/compare/0.41...0.42
 ### Added
diff --git a/cobo_custody/client/mpc_client.py b/cobo_custody/client/mpc_client.py
index 4eb61e5..3c042e7 100644
--- a/cobo_custody/client/mpc_client.py
+++ b/cobo_custody/client/mpc_client.py
@@ -278,7 +278,7 @@ def estimate_fee(self, coin: str, amount: int = None, address: str = None, repla
         params = {"coin": coin, "amount": amount, "address": address, "replace_cobo_id": replace_cobo_id,
                   "from_address": from_address, "to_address_details": to_address_details, "fee": fee,
                   "gas_price": gas_price, "gas_limit": gas_limit, "extra_parameters": extra_parameters}
-        return self.request("GET", "/v1/custody/mpc/estimate_fee/", params)
+        return self.request("POST", "/v1/custody/mpc/estimate_fee/", params)
 
     def list_tss_node_requests(self, request_type: int = None, status: int = None) -> ApiResponse:
         params = {"request_type": request_type, "status": status}
@@ -333,6 +333,10 @@ def babylon_replace_staking_fee(self, request_id: str, related_request_id: str,
         params = {"request_id": request_id, "related_request_id": related_request_id, "fee_rate": fee_rate, "max_staking_fee": max_staking_fee}
         return self.request("POST", "/v1/custody/mpc/babylon/replace_staking_fee/", params)
 
+    def babylon_drop_staking(self, request_id: str, related_request_id: str, fee_rate: float, max_staking_fee: int = None):
+        params = {"request_id": request_id, "related_request_id": related_request_id, "fee_rate": fee_rate, "max_staking_fee": max_staking_fee}
+        return self.request("POST", "/v1/custody/mpc/babylon/drop_staking/", params)
+
     def babylon_broadcast_staking_transaction(self, request_id: str):
         params = {"request_id": request_id}
         return self.request("POST", "/v1/custody/mpc/babylon/broadcast_staking_transaction/", params)
@@ -353,7 +357,80 @@ def babylon_list_transactions_by_status(self, status: int, address: str = None,
         params = {"status": status, "address": address, "min_cobo_id": min_cobo_id, "limit": limit}
         return self.request("GET", "/v1/custody/mpc/babylon/list_transactions_by_status/", params)
 
+    def babylon_unbonding(self, request_id: str, staking_request_id: str):
+        params = {"request_id": request_id, "staking_request_id": staking_request_id}
+        return self.request("POST", "/v1/custody/mpc/babylon/unbonding/", params)
+
+    def babylon_withdraw(self, request_id: str, fee_rate: float, max_fee_amount: int = None, unbonding_request_id: str = None, staking_request_id: str = None):
+        params = {"request_id": request_id, "fee_rate": fee_rate, "max_fee_amount": max_fee_amount, "unbonding_request_id": unbonding_request_id, "staking_request_id": staking_request_id}
+        return self.request("POST", "/v1/custody/mpc/babylon/withdraw/", params)
+
     def get_approval_details(self,  request_id: str):
         params = {"request_id": request_id}
         return self.request("GET", "/v1/custody/mpc/get_approval_details/", params)
 
+    def list_eligibles(self, status: str = None, min_id: str = None, limit: int = None) -> ApiResponse:
+        params = {
+            "status": status,
+            "min_id": min_id,
+            "limit": limit
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/airdrops/list_eligibles/", params)
+
+    def submit_registration(self, btc_address: str, babylon_address: str) -> ApiResponse:
+        params = {
+            "btc_address": btc_address,
+            "babylon_address": babylon_address
+        }
+        return self.request("POST", "/v1/custody/mpc/babylon/airdrops/submit_registration/", params)
+
+    def list_registrations(self, status: str = None, btc_address: str = None, min_id: str = None, limit: int = None) -> ApiResponse:
+        params = {
+            "status": status,
+            "btc_address": btc_address,
+            "min_id": min_id,
+            "limit": limit
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/airdrops/list_registrations/", params)
+
+    def get_registration(self, registration_id: str) -> ApiResponse:
+        params = {
+            "registration_id": registration_id
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/airdrops/get_registration/", params)
+
+    def list_eligible_stakings(self, status: str = None, min_id: str = None, limit: int = None) -> ApiResponse:
+        params = {
+            "status": status,
+            "min_id": min_id,
+            "limit": limit
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/stakings/list_eligibles/", params)
+
+    def submit_staking_registration(self, staking_id: str, babylon_address: str) -> ApiResponse:
+        params = {
+            "staking_id": staking_id,
+            "babylon_address": babylon_address
+        }
+        return self.request("POST", "/v1/custody/mpc/babylon/stakings/submit_registration/", params)
+
+    def list_staking_registrations(self, staking_id: str, status: str = None, min_id: str = None, limit: int = None) -> ApiResponse:
+        params = {
+            "staking_id": staking_id,
+            "status": status,
+            "min_id": min_id,
+            "limit": limit
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/stakings/list_registrations/", params)
+
+    def get_staking_registration(self, registration_id: str) -> ApiResponse:
+        params = {
+            "registration_id": registration_id
+        }
+        return self.request("GET", "/v1/custody/mpc/babylon/stakings/get_registration/", params)
+
+    def claim_babylon_rewards(self, babylon_address: str):
+        params = {
+            "babylon_address": babylon_address
+        }
+        return self.request("POST", "/v1/custody/mpc/babylon/claim_rewards/", params)
diff --git a/setup.py b/setup.py
index 5af323b..24cc4e2 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import setup
 setup(
     name="cobo_custody",
-    version="0.42",
+    version="0.46",
     author="Cobo",
     author_email="support@cobo.com",
     description="Cobo Custody restful api",
diff --git a/tests/testcase/test_mpc_client.py b/tests/testcase/test_mpc_client.py
index 5ef6cbf..7653c1f 100644
--- a/tests/testcase/test_mpc_client.py
+++ b/tests/testcase/test_mpc_client.py
@@ -1,5 +1,6 @@
 import unittest
 import time
+
 from cobo_custody.signer.local_signer import LocalSigner
 from cobo_custody.client.mpc_client import MPCClient