diff --git a/etherlink/CHANGES_NODE.md b/etherlink/CHANGES_NODE.md
index 4dfcc7bac396591905a7717f2fcd3a82b40850eb..0589a910de0d6ad7099fc455d578a7f8bc2cb5f1 100644
--- a/etherlink/CHANGES_NODE.md
+++ b/etherlink/CHANGES_NODE.md
@@ -7,6 +7,15 @@
 - Adds `full` history mode, where the EVM node keeps all the blocks and transactions,
   but still prunes state data. (!16584)
 
+#### Experimental
+
+*No guarantees are provided regarding backward compatibility of experimental
+features. They can be modified or removed without any deprecation notices. If
+you start using them, you probably want to use `octez-evm-node check config
+--config-file PATH` to assert your configuration file is still valid.*
+
+- Added possibility of configuring multiple l2_chains. The first admissable configuration is their `chain_id` (!16587)
+
 ### Bug Fixes
 
 - Advertises the correct history mode on start-up when it is not explicitely
diff --git a/etherlink/bin_node/config/configuration.ml b/etherlink/bin_node/config/configuration.ml
index b7b40a5f05c14b50c9225a18bf46d256a47c600b..8303988938cf7cf8c0f80212b6a07c4f2f0391ed 100644
--- a/etherlink/bin_node/config/configuration.ml
+++ b/etherlink/bin_node/config/configuration.ml
@@ -53,6 +53,12 @@ type rpc_server = Resto | Dream
 
 type monitor_websocket_heartbeat = {ping_interval : float; ping_timeout : float}
 
+let chain_id network =
+  Ethereum_types.Chain_id
+    (Z.of_int (match network with Mainnet -> 0xa729 | Testnet -> 0x1f47b))
+
+type l2_chain = {chain_id : Ethereum_types.chain_id}
+
 type experimental_features = {
   drop_duplicate_on_injection : bool;
   blueprints_publisher_order_enabled : bool;
@@ -62,6 +68,7 @@ type experimental_features = {
   enable_websocket : bool;
   max_websocket_message_length : int;
   monitor_websocket_heartbeat : monitor_websocket_heartbeat option;
+  l2_chains : l2_chain list option;
 }
 
 type sequencer = {
@@ -190,6 +197,8 @@ let default_max_socket_message_length = 4096 * 1024
 let default_monitor_websocket_heartbeat =
   Some {ping_interval = 5.; ping_timeout = 30.}
 
+let default_l2_chains = None
+
 let default_experimental_features =
   {
     enable_send_raw_transaction = default_enable_send_raw_transaction;
@@ -200,6 +209,7 @@ let default_experimental_features =
     enable_websocket = false;
     max_websocket_message_length = default_max_socket_message_length;
     monitor_websocket_heartbeat = default_monitor_websocket_heartbeat;
+    l2_chains = default_l2_chains;
   }
 
 let default_data_dir = Filename.concat (Sys.getenv "HOME") ".octez-evm-node"
@@ -810,6 +820,16 @@ let opt_monitor_websocket_heartbeat_encoding =
         Option.some;
     ]
 
+let l2_chain_encoding : l2_chain Data_encoding.t =
+  let open Data_encoding in
+  let open Evm_node_lib_dev_encoding in
+  conv (fun {chain_id} -> chain_id) (fun chain_id -> {chain_id})
+  @@ obj1
+       (req
+          "chain_id"
+          ~description:"The id of the l2 chain"
+          Ethereum_types.chain_id_encoding)
+
 let experimental_features_encoding =
   let open Data_encoding in
   conv
@@ -822,6 +842,7 @@ let experimental_features_encoding =
            enable_websocket;
            max_websocket_message_length;
            monitor_websocket_heartbeat;
+           l2_chains : l2_chain list option;
          } ->
       ( ( drop_duplicate_on_injection,
           blueprints_publisher_order_enabled,
@@ -832,7 +853,8 @@ let experimental_features_encoding =
         ( rpc_server,
           enable_websocket,
           max_websocket_message_length,
-          monitor_websocket_heartbeat ) ))
+          monitor_websocket_heartbeat,
+          l2_chains ) ))
     (fun ( ( drop_duplicate_on_injection,
              blueprints_publisher_order_enabled,
              enable_send_raw_transaction,
@@ -842,7 +864,8 @@ let experimental_features_encoding =
            ( rpc_server,
              enable_websocket,
              max_websocket_message_length,
-             monitor_websocket_heartbeat ) ) ->
+             monitor_websocket_heartbeat,
+             l2_chains ) ) ->
       {
         drop_duplicate_on_injection;
         blueprints_publisher_order_enabled;
@@ -852,6 +875,7 @@ let experimental_features_encoding =
         enable_websocket;
         max_websocket_message_length;
         monitor_websocket_heartbeat;
+        l2_chains;
       })
     (merge_objs
        (obj6
@@ -902,7 +926,7 @@ let experimental_features_encoding =
                 DEPRECATED: You should remove this option from your \
                 configuration file."
              bool))
-       (obj4
+       (obj5
           (dft
              "rpc_server"
              ~description:
@@ -926,7 +950,15 @@ let experimental_features_encoding =
              "monitor_websocket_heartbeat"
              ~description:"Parameters to monitor websocket connections"
              opt_monitor_websocket_heartbeat_encoding
-             default_monitor_websocket_heartbeat)))
+             default_monitor_websocket_heartbeat)
+          (dft
+             "l2_chains"
+             ~description:
+               "Configuration of l2_chains for multisequencing.\n\
+               \                 If not set, the node will adopt a single \
+                chain behaviour."
+             (option (list l2_chain_encoding))
+             default_l2_chains)))
 
 let proxy_encoding =
   let open Data_encoding in
@@ -1550,6 +1582,13 @@ module Cli = struct
         ?native_execution_policy
         ()
     in
+    let experimental_features =
+      match network with
+      | None -> default_experimental_features
+      | Some network ->
+          let l2_chains = Some [{chain_id = chain_id network}] in
+          {default_experimental_features with l2_chains}
+    in
     {
       public_rpc;
       private_rpc;
@@ -1574,7 +1613,7 @@ module Cli = struct
       verbose =
         (if Option.value verbose ~default:default_verbose then Debug
          else Internal_event.Notice);
-      experimental_features = default_experimental_features;
+      experimental_features;
       fee_history = default_fee_history;
       finalized_view =
         Option.value ~default:default_finalized_view finalized_view;
diff --git a/etherlink/bin_node/config/configuration.mli b/etherlink/bin_node/config/configuration.mli
index 78167f9339de1793614cec952e0ae1dca6f0502e..e1cf612ced605e1cb5091e99c7cd3891faead906 100644
--- a/etherlink/bin_node/config/configuration.mli
+++ b/etherlink/bin_node/config/configuration.mli
@@ -6,6 +6,8 @@
 (*                                                                           *)
 (*****************************************************************************)
 
+open Evm_node_lib_dev_encoding
+
 (** A list of network officially supported by the EVM node. *)
 type supported_network = Mainnet | Testnet
 
@@ -81,6 +83,10 @@ type rpc_server =
 (** Parameters for monitoring websocket connection heartbeats. *)
 type monitor_websocket_heartbeat = {ping_interval : float; ping_timeout : float}
 
+val chain_id : supported_network -> Ethereum_types.chain_id
+
+type l2_chain = {chain_id : Ethereum_types.chain_id}
+
 (** Configuration settings for experimental features, with no backward
     compatibility guarantees. *)
 type experimental_features = {
@@ -92,6 +98,7 @@ type experimental_features = {
   enable_websocket : bool;
   max_websocket_message_length : int;
   monitor_websocket_heartbeat : monitor_websocket_heartbeat option;
+  l2_chains : l2_chain list option;
 }
 
 type sequencer = {
diff --git a/etherlink/bin_node/config/dune b/etherlink/bin_node/config/dune
index 9a70fa912dc2c0df8542a1c9a9a5f00cff85b379..fd07fe76fc7805ad8f8650e9222514e860595e53 100644
--- a/etherlink/bin_node/config/dune
+++ b/etherlink/bin_node/config/dune
@@ -11,10 +11,12 @@
   octez-shell-libs.client-base
   octez-libs.rpc-http
   octez-libs.rpc-http-server
-  octez-libs.stdlib-unix)
+  octez-libs.stdlib-unix
+  octez-evm-node-libs.evm_node_lib_dev_encoding)
  (flags
   (:standard)
   -open Tezos_base.TzPervasives
   -open Tezos_client_base
   -open Tezos_rpc_http
-  -open Tezos_stdlib_unix))
+  -open Tezos_stdlib_unix
+  -open Evm_node_lib_dev_encoding))
diff --git a/etherlink/bin_node/lib_dev/constants.ml b/etherlink/bin_node/lib_dev/constants.ml
index 6f50c857b7c92292b7be51de746bed31190e2227..c8021c0012419ccb8bdf9755e0cd9a010dfd39c3 100644
--- a/etherlink/bin_node/lib_dev/constants.ml
+++ b/etherlink/bin_node/lib_dev/constants.ml
@@ -5,8 +5,6 @@
 (*                                                                           *)
 (*****************************************************************************)
 
-open Ethereum_types
-
 let supported_networks = Configuration.[Mainnet; Testnet]
 
 let network_name = function
@@ -14,8 +12,7 @@ let network_name = function
   | Testnet -> "Testnet"
 
 let chain_id network =
-  (match network with Configuration.Mainnet -> 0xa729 | Testnet -> 0x1f47b)
-  |> Z.of_int |> quantity_of_z
+  match Configuration.chain_id network with Chain_id x -> Ethereum_types.Qty x
 
 let rollup_address network =
   Tezos_crypto.Hashed.Smart_rollup_address.of_b58check_exn
diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
index 3c6690c7499c1743bbf7badc84af21b35fccf09b..500e3fa13741d43837e18bf6b6beee61689a259d 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.ml
@@ -115,6 +115,12 @@ let quantity_encoding =
 
 let pp_quantity fmt (Qty q) = Z.pp_print fmt q
 
+type chain_id = Chain_id of Z.t
+
+let chain_id_encoding : chain_id Data_encoding.t =
+  let open Data_encoding in
+  conv (fun (Chain_id z) -> z) (fun z -> Chain_id z) z
+
 type block_hash = Block_hash of hex [@@ocaml.unboxed]
 
 let pp_block_hash fmt (Block_hash (Hex h)) = Format.pp_print_string fmt h
diff --git a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
index aa0ebe839211edaed48c66c4a10c82004c8cc8c2..efaf47b67b9c3355c178732d0970fa5a6eefebd1 100644
--- a/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
+++ b/etherlink/bin_node/lib_dev/encodings/ethereum_types.mli
@@ -53,6 +53,10 @@ val hex_of_utf8 : string -> hex
 (** [hex_of_bytes] transforms the [bytes] to hexadecimal. *)
 val hex_of_bytes : bytes -> hex
 
+type chain_id = Chain_id of Z.t
+
+val chain_id_encoding : chain_id Data_encoding.t
+
 (** Ethereum block hash (32 bytes) *)
 type block_hash = Block_hash of hex [@@unboxed]
 
diff --git a/etherlink/tezt/tests/expected/evm_sequencer.ml/Alpha- Configuration RPC.out b/etherlink/tezt/tests/expected/evm_sequencer.ml/Alpha- Configuration RPC.out
index 87b5983249ae8b359f1bf80b4b26aedcc918a5ef..92caab5461df15853decb4d50643e113e5b9381e 100644
--- a/etherlink/tezt/tests/expected/evm_sequencer.ml/Alpha- Configuration RPC.out	
+++ b/etherlink/tezt/tests/expected/evm_sequencer.ml/Alpha- Configuration RPC.out	
@@ -21,7 +21,8 @@
     "monitor_websocket_heartbeat": {
       "ping_interval": 5,
       "ping_timeout": 30
-    }
+    },
+    "l2_chains": null
   },
   "proxy": {
     "ignore_block_param": false
@@ -78,7 +79,8 @@
     "monitor_websocket_heartbeat": {
       "ping_interval": 5,
       "ping_timeout": 30
-    }
+    },
+    "l2_chains": null
   },
   "proxy": {
     "ignore_block_param": false
@@ -128,7 +130,8 @@
     "monitor_websocket_heartbeat": {
       "ping_interval": 5,
       "ping_timeout": 30
-    }
+    },
+    "l2_chains": null
   },
   "proxy": {
     "evm_node_endpoint": "hidden",
diff --git a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- describe config.out b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- describe config.out
index f39a80427c61907c6d7fad4f3873317a3b51cf71..943d89ffe1ab25d6ff06eb99360fdc488f15ce60 100644
--- a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- describe config.out	
+++ b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- describe config.out	
@@ -161,7 +161,15 @@
              "ping_timeout":
                number
                /* Timeout in seconds after which the connection will be
-                  considered dead and closed. */ } },
+                  considered dead and closed. */ },
+      "l2_chains"?:
+        /* Configuration of l2_chains for multisequencing.
+                            If not set, the node will adopt a single chain
+           behaviour. */
+        [ { "chain_id": $bignum /* The id of the l2 chain */ } ... ]
+        /* Some */
+        || null
+        /* None */ },
   "proxy"?:
     { "finalized_view"?:
         boolean
@@ -274,6 +282,10 @@
     /* When enabled, the node only expose blocks that are finalized, i.e.,
        the `latest` block parameter becomes a synonym for `finalized`. */,
   "history"?: $history_mode /* History mode of the EVM node */ }
+$bignum:
+  /* Big number
+     Decimal representation of a big number */
+  string
 $history_mode:
   /* Compact notation for the history mode. Can either be `archive` and
      `rolling:N` with `N` being the number of days to use as the retention
diff --git a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network mainnet.out b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network mainnet.out
index 27ef4b10c673f0b5e3bc945b7ed0f4874d8d694f..93d7063e882e4a013bd6dd4aeda77f9b24e8b53f 100644
--- a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network mainnet.out	
+++ b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network mainnet.out	
@@ -1,4 +1,5 @@
 { "observer": { "evm_node_endpoint": "https://relay.mainnet.etherlink.com" },
+  "experimental_features": { "l2_chains": [ { "chain_id": "42793" } ] },
   "kernel_execution":
     { "preimages_endpoint":
         "https://snapshots.tzinit.org/etherlink-mainnet/wasm_2_0_0" } }
diff --git a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network testnet.out b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network testnet.out
index de6cb3f5e98a8f5c2071847fa783888f9425a5ea..f8b01ad3dae0e0eaf3fc9cca3cec5fdb879b6688 100644
--- a/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network testnet.out	
+++ b/etherlink/tezt/tests/expected/evm_sequencer.ml/EVM Node- init config --network testnet.out	
@@ -1,4 +1,5 @@
 { "observer": { "evm_node_endpoint": "https://relay.ghostnet.etherlink.com" },
+  "experimental_features": { "l2_chains": [ { "chain_id": "128123" } ] },
   "kernel_execution":
     { "preimages_endpoint":
         "https://snapshots.tzinit.org/etherlink-ghostnet/wasm_2_0_0" } }
diff --git a/manifest/product_etherlink.ml b/manifest/product_etherlink.ml
index 64d75e5b6d81cc6dd6041846b3dd554c4270f7fc..f61b59277b228e54522613c78398a35f1972ffed 100644
--- a/manifest/product_etherlink.ml
+++ b/manifest/product_etherlink.ml
@@ -115,21 +115,6 @@ let evm_node_rust_deps =
 
 let tezt ?(deps = []) = tezt ~deps:(bls12_381_archive :: deps)
 
-let evm_node_config =
-  octez_evm_node_lib
-    "evm_node_config"
-    ~path:"etherlink/bin_node/config"
-    ~synopsis:"Configuration for the EVM node"
-    ~deps:
-      [
-        octez_base |> open_ ~m:"TzPervasives";
-        octez_base_unix;
-        octez_client_base |> open_;
-        octez_rpc_http |> open_;
-        octez_rpc_http_server;
-        octez_stdlib_unix |> open_;
-      ]
-
 let wasm_runtime_callbacks =
   octez_evm_node_lib
     "wasm_runtime_callbacks"
@@ -255,6 +240,22 @@ let evm_node_lib_dev_encoding =
         uuidm;
       ]
 
+let evm_node_config =
+  octez_evm_node_lib
+    "evm_node_config"
+    ~path:"etherlink/bin_node/config"
+    ~synopsis:"Configuration for the EVM node"
+    ~deps:
+      [
+        octez_base |> open_ ~m:"TzPervasives";
+        octez_base_unix;
+        octez_client_base |> open_;
+        octez_rpc_http |> open_;
+        octez_rpc_http_server;
+        octez_stdlib_unix |> open_;
+        evm_node_lib_dev_encoding |> open_;
+      ]
+
 let evm_node_lib_dev =
   octez_evm_node_lib
     "evm_node_lib_dev"
diff --git a/opam/octez-evm-node-libs.opam b/opam/octez-evm-node-libs.opam
index 3a57e37da042d1de1120390a9df8575008d4edcd..ecf84047dd1407f5ac7896a6056300a0eca516f1 100644
--- a/opam/octez-evm-node-libs.opam
+++ b/opam/octez-evm-node-libs.opam
@@ -17,13 +17,13 @@ depends: [
   "cohttp" { >= "5.3.1" }
   "mirage-crypto-rng" { >= "1.0.0" }
   "octez-libs"
-  "octez-shell-libs"
   "octez-l2-libs"
   "crunch" { >= "3.3.0" }
   "caqti-lwt" { >= "2.0.1" }
   "re" { >= "1.10.0" }
   "octez-smart-rollup-wasm-debugger-plugin"
   "uuidm" { >= "0.9.9" }
+  "octez-shell-libs"
   "dream" { >= "1.0.0~alpha7" }
   "octez-version"
   "lwt-watcher" { = "0.2" }