diff --git a/client/pyproject.toml b/client/pyproject.toml
index 775ff53..7b1e8f6 100644
--- a/client/pyproject.toml
+++ b/client/pyproject.toml
@@ -29,6 +29,7 @@ requires-python = ">=3.7"
 dependencies = [
     "ragger[speculos]",
     "simple-rlp",
+    "pysha3",
 ]
 
 [tools.setuptools]
diff --git a/client/src/ledger_app_clients/ethereum/client.py b/client/src/ledger_app_clients/ethereum/client.py
index 2c33026..f8b98e2 100644
--- a/client/src/ledger_app_clients/ethereum/client.py
+++ b/client/src/ledger_app_clients/ethereum/client.py
@@ -206,3 +206,68 @@ class EthAppClient:
             with self._send(chunk):
                 pass
         return self._send(chunks[-1])
+
+    def set_plugin(self,
+                   plugin_name: str,
+                   contract_addr: bytes,
+                   selector: bytes,
+                   chain_id: int,
+                   type_: int = 1,
+                   version: int = 1,
+                   key_id: int = 2,
+                   algo_id: int = 1,
+                   sig: Optional[bytes] = None):
+        if sig is None:
+            # Temporarily get a command with an empty signature to extract the payload and
+            # compute the signature on it
+            tmp = self._cmd_builder.set_plugin(type_,
+                                               version,
+                                               plugin_name,
+                                               contract_addr,
+                                               selector,
+                                               chain_id,
+                                               key_id,
+                                               algo_id,
+                                               bytes())
+            # skip APDU header & empty sig
+            sig = sign_data(Key.SET_PLUGIN, tmp[5:-1])
+        return self._send(self._cmd_builder.set_plugin(type_,
+                                                       version,
+                                                       plugin_name,
+                                                       contract_addr,
+                                                       selector,
+                                                       chain_id,
+                                                       key_id,
+                                                       algo_id,
+                                                       sig))
+
+    def provide_nft_metadata(self,
+                             collection: str,
+                             addr: bytes,
+                             chain_id: int,
+                             type_: int = 1,
+                             version: int = 1,
+                             key_id: int = 1,
+                             algo_id: int = 1,
+                             sig: Optional[bytes] = None):
+        if sig is None:
+            # Temporarily get a command with an empty signature to extract the payload and
+            # compute the signature on it
+            tmp = self._cmd_builder.provide_nft_information(type_,
+                                                            version,
+                                                            collection,
+                                                            addr,
+                                                            chain_id,
+                                                            key_id,
+                                                            algo_id,
+                                                            bytes())
+            # skip APDU header & empty sig
+            sig = sign_data(Key.NFT, tmp[5:-1])
+        return self._send(self._cmd_builder.provide_nft_information(type_,
+                                                                    version,
+                                                                    collection,
+                                                                    addr,
+                                                                    chain_id,
+                                                                    key_id,
+                                                                    algo_id,
+                                                                    sig))
diff --git a/client/src/ledger_app_clients/ethereum/command_builder.py b/client/src/ledger_app_clients/ethereum/command_builder.py
index a677671..e63f061 100644
--- a/client/src/ledger_app_clients/ethereum/command_builder.py
+++ b/client/src/ledger_app_clients/ethereum/command_builder.py
@@ -10,6 +10,8 @@ from .eip712 import EIP712FieldType
 class InsType(IntEnum):
     GET_PUBLIC_ADDR = 0x02
     SIGN = 0x04
+    PROVIDE_NFT_INFORMATION = 0x14
+    SET_PLUGIN = 0x16
     EIP712_SEND_STRUCT_DEF = 0x1a
     EIP712_SEND_STRUCT_IMPL = 0x1c
     EIP712_SEND_FILTERING = 0x1e
@@ -219,3 +221,49 @@ class CommandBuilder:
                                int(display),
                                int(chaincode),
                                payload)
+
+    def set_plugin(self,
+                   type_: int,
+                   version: int,
+                   plugin_name: str,
+                   contract_addr: bytes,
+                   selector: bytes,
+                   chain_id: int,
+                   key_id: int,
+                   algo_id: int,
+                   sig: bytes) -> bytes:
+        payload = bytearray()
+        payload.append(type_)
+        payload.append(version)
+        payload.append(len(plugin_name))
+        payload += plugin_name.encode()
+        payload += contract_addr
+        payload += selector
+        payload += struct.pack(">Q", chain_id)
+        payload.append(key_id)
+        payload.append(algo_id)
+        payload.append(len(sig))
+        payload += sig
+        return self._serialize(InsType.SET_PLUGIN, 0x00, 0x00, payload)
+
+    def provide_nft_information(self,
+                                type_: int,
+                                version: int,
+                                collection_name: str,
+                                addr: bytes,
+                                chain_id: int,
+                                key_id: int,
+                                algo_id: int,
+                                sig: bytes):
+        payload = bytearray()
+        payload.append(type_)
+        payload.append(version)
+        payload.append(len(collection_name))
+        payload += collection_name.encode()
+        payload += addr
+        payload += struct.pack(">Q", chain_id)
+        payload.append(key_id)
+        payload.append(algo_id)
+        payload.append(len(sig))
+        payload += sig
+        return self._serialize(InsType.PROVIDE_NFT_INFORMATION, 0x00, 0x00, payload)
diff --git a/client/src/ledger_app_clients/ethereum/utils.py b/client/src/ledger_app_clients/ethereum/utils.py
new file mode 100644
index 0000000..aa3c710
--- /dev/null
+++ b/client/src/ledger_app_clients/ethereum/utils.py
@@ -0,0 +1,4 @@
+import sha3
+
+def get_selector_from_function(fn: str) -> bytes:
+    return sha3.keccak_256(fn.encode()).digest()[0:4]