diff --git a/Cargo.lock b/Cargo.lock
index 32fec765..7a96c87e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -938,7 +938,7 @@ dependencies = [
 [[package]]
 name = "massa-proto-rs"
 version = "0.1.0"
-source = "git+https://github.com/massalabs/massa-proto-rs.git?rev=30b91d705b704287662b0e42457ece442005fa46#30b91d705b704287662b0e42457ece442005fa46"
+source = "git+https://github.com/massalabs/massa-proto-rs.git?rev=84678fb77cf6d06d85d55e2c20502908ff292e61#84678fb77cf6d06d85d55e2c20502908ff292e61"
 dependencies = [
  "glob",
  "prost",
@@ -2332,9 +2332,9 @@ checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
 
 [[package]]
 name = "winnow"
-version = "0.5.26"
+version = "0.5.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b67b5f0a4e7a27a64c651977932b9dc5667ca7fc31ac44b03ed37a0cf42fdfff"
+checksum = "6c830786f7720c2fd27a1a0e27a709dbd3c4d009b56d098fc742d4f4eab91fe2"
 dependencies = [
  "memchr",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 8224d991..5033ec8a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,7 @@ chrono = { version = "=0.4", features = ["clock"], default-features = false }
 displaydoc = "0.2"
 function_name = "0.3"
 loupe = "0.1"
-massa-proto-rs = { git = "https://github.com/massalabs/massa-proto-rs.git", rev = "30b91d705b704287662b0e42457ece442005fa46" }
+massa-proto-rs = { git = "https://github.com/massalabs/massa-proto-rs.git", rev = "84678fb77cf6d06d85d55e2c20502908ff292e61"}
 more-asserts = "0.3"
 num_enum = "0.7"
 parking_lot = "0.12"
diff --git a/src/as_execution/abi.rs b/src/as_execution/abi.rs
index 9a4b5633..ca95e446 100644
--- a/src/as_execution/abi.rs
+++ b/src/as_execution/abi.rs
@@ -1051,6 +1051,14 @@ pub fn assembly_script_function_exists(
     Ok(function_exists(&mut ctx, address, function)? as i32)
 }
 
+/// Return current chain id
+#[named]
+pub(crate) fn assembly_script_chain_id(mut ctx: FunctionEnvMut<ASEnv>) -> ABIResult<u64> {
+    let env = get_env(&ctx)?;
+    sub_remaining_gas_abi(&env, &mut ctx, function_name!())?;
+    Ok(env.get_interface().chain_id()? as u64)
+}
+
 /// Assembly script builtin `abort` function.
 ///
 /// It prints the origin filename, an error messag, the line and column.
diff --git a/src/as_execution/context.rs b/src/as_execution/context.rs
index b990ba60..4b244eb4 100644
--- a/src/as_execution/context.rs
+++ b/src/as_execution/context.rs
@@ -277,6 +277,7 @@ impl ASContext {
                 "assembly_script_local_execution" => Function::new_typed_with_env(store, &fenv, assembly_script_local_execution),
                 "assembly_script_caller_has_write_access" => Function::new_typed_with_env(store, &fenv, assembly_script_caller_has_write_access),
                 "assembly_script_function_exists" => Function::new_typed_with_env(store, &fenv, assembly_script_function_exists),
+                "assembly_script_chain_id" => Function::new_typed_with_env(store, &fenv, assembly_script_chain_id),
             },
         };
 
diff --git a/src/tests/mod.rs b/src/tests/mod.rs
index 3f34bf56..1d4a8325 100644
--- a/src/tests/mod.rs
+++ b/src/tests/mod.rs
@@ -801,6 +801,10 @@ impl Interface for TestInterface {
         println!("get_origin_operation_id");
         Ok(Some(String::new()))
     }
+
+    fn chain_id(&self) -> Result<u64> {
+        Ok(7)
+    }
 }
 
 #[cfg(feature = "gas_calibration")]
diff --git a/src/types.rs b/src/types.rs
index 7245b91f..3da770f0 100644
--- a/src/types.rs
+++ b/src/types.rs
@@ -145,6 +145,7 @@ impl Default for GasCosts {
         abi_costs.insert(String::from("assembly_script_console_warn"), 36);
         abi_costs.insert(String::from("assembly_script_console_error"), 36);
         abi_costs.insert(String::from("assembly_script_trace"), 36);
+        abi_costs.insert(String::from("assembly_script_chain_id"), 9);
         Self {
             abi_costs,
             operator_cost: 1,
@@ -434,6 +435,9 @@ pub trait Interface: Send + Sync + InterfaceClone {
     // Keccak256 hash bytes
     fn hash_keccak256(&self, bytes: &[u8]) -> Result<[u8; 32]>;
 
+    // Return the current chain id
+    fn chain_id(&self) -> Result<u64>;
+
     fn native_amount_from_str_wasmv1(&self, amount: &str) -> Result<NativeAmount>;
 
     fn native_amount_to_string_wasmv1(&self, amount: &NativeAmount) -> Result<String>;
diff --git a/src/wasmv1_execution/abi/abis.rs b/src/wasmv1_execution/abi/abis.rs
index 3d8cae31..2368f5a1 100644
--- a/src/wasmv1_execution/abi/abis.rs
+++ b/src/wasmv1_execution/abi/abis.rs
@@ -114,7 +114,8 @@ pub fn register_abis(store: &mut impl AsStoreMut, shared_abi_env: ABIEnv) -> Imp
         "abi_evm_verify_signature" => abi_evm_verify_signature,
         "abi_evm_get_address_from_pubkey" => abi_evm_get_address_from_pubkey,
         "abi_evm_get_pubkey_from_signature" => abi_evm_get_pubkey_from_signature,
-        "abi_is_address_eoa" => abi_is_address_eoa
+        "abi_is_address_eoa" => abi_is_address_eoa,
+        "abi_chain_id" => abi_chain_id
     )
 }
 
@@ -1660,3 +1661,23 @@ pub fn abi_verify_signature(
         },
     )
 }
+
+#[named]
+pub fn abi_chain_id(
+    store_env: FunctionEnvMut<ABIEnv>,
+    arg_offset: i32,
+) -> Result<i32, WasmV1Error> {
+    handle_abi(
+        function_name!(),
+        store_env,
+        arg_offset,
+        |handler, _req: ChainIdRequest| -> Result<AbiResponse, WasmV1Error> {
+            match handler.interface.chain_id() {
+                Ok(chain_id) => {
+                    resp_ok!(ChainIdResult, { id: chain_id })
+                }
+                Err(e) => resp_err!(e),
+            }
+        },
+    )
+}