diff --git a/object/service.proto b/object/service.proto
index c1f9622..d36ddf2 100644
--- a/object/service.proto
+++ b/object/service.proto
@@ -8,6 +8,7 @@ option csharp_namespace = "Neo.FileStorage.API.Object";
 import "object/types.proto";
 import "refs/types.proto";
 import "session/types.proto";
+import "status/types.proto";
 
 // `ObjectService` provides API for manipulating objects. Object operations do
 // not affect the sidechain and are only served by nodes in p2p style.
@@ -218,6 +219,12 @@ service ObjectService {
   // - **TOKEN_EXPIRED** (4097, SECTION_SESSION): \
   //   provided session token has expired.
   rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse);
+
+  // Save replica of the object on the NeoFS storage node. Both client and
+  // server must authenticate NeoFS storage nodes matching storage policy of
+  // the container referenced by the replicated object. Thus, this operation is
+  // purely system: regular users should not pay attention to it but use Put.
+  rpc Replicate(ReplicateRequest) returns (ReplicateResponse);
 }
 
 // GET object request
@@ -688,3 +695,37 @@ message GetRangeHashResponse {
   // transmission.
   neo.fs.v2.session.ResponseVerificationHeader verify_header = 3;
 }
+
+// Replicate RPC request
+message ReplicateRequest {
+  // Object to be replicated.
+  neo.fs.v2.object.Object object = 1;
+
+  // Signature of all other request fields serialized in Protocol Buffers v3
+  // format in ascending order of fields.
+  neo.fs.v2.refs.Signature signature = 2;
+}
+
+// Replicate RPC response
+message ReplicateResponse {
+  // Operation status codes.
+  enum Code {
+    // Object has been replicated successfully.
+    OK = 0;
+    // Internal server error described in the text message.
+    INTERNAL = 1;
+    // Request message format violation.
+    BAD_REQUEST = 2;
+    // Request signature is missing or incorrect.
+    UNAUTHORIZED = 3;
+    // The client does not authenticate any NeoFS storage node matching storage
+    // policy of the container referenced by the replicated object.
+    FORBIDDEN = 4;
+    // The server is not a NeoFS storage node matching storage policy of the
+    // container referenced by the replicated object.
+    PRECONDITION_FAILED = 5;
+  }
+
+  // Operation execution status with one of the enumerated codes.
+  neo.fs.v2.status.Status status = 1;
+}
diff --git a/proto-docs/object.md b/proto-docs/object.md
index b46673a..0ec42e8 100644
--- a/proto-docs/object.md
+++ b/proto-docs/object.md
@@ -36,6 +36,8 @@
     - [PutResponse](#neo.fs.v2.object.PutResponse)
     - [PutResponse.Body](#neo.fs.v2.object.PutResponse.Body)
     - [Range](#neo.fs.v2.object.Range)
+    - [ReplicateRequest](#neo.fs.v2.object.ReplicateRequest)
+    - [ReplicateResponse](#neo.fs.v2.object.ReplicateResponse)
     - [SearchRequest](#neo.fs.v2.object.SearchRequest)
     - [SearchRequest.Body](#neo.fs.v2.object.SearchRequest.Body)
     - [SearchRequest.Body.Filter](#neo.fs.v2.object.SearchRequest.Body.Filter)
@@ -80,6 +82,7 @@ rpc Head(HeadRequest) returns (HeadResponse);
 rpc Search(SearchRequest) returns (stream SearchResponse);
 rpc GetRange(GetRangeRequest) returns (stream GetRangeResponse);
 rpc GetRangeHash(GetRangeHashRequest) returns (GetRangeHashResponse);
+rpc Replicate(ReplicateRequest) returns (ReplicateResponse);
 
 ```
 
@@ -318,6 +321,16 @@ Statuses:
 | Name | Input | Output |
 | ---- | ----- | ------ |
 | GetRangeHash | [GetRangeHashRequest](#neo.fs.v2.object.GetRangeHashRequest) | [GetRangeHashResponse](#neo.fs.v2.object.GetRangeHashResponse) |
+#### Method Replicate
+
+Save replica of the object on the NeoFS storage node. Both client and
+server must authenticate NeoFS storage nodes matching storage policy of
+the container referenced by the replicated object. Thus, this operation is
+purely system: regular users should not pay attention to it but use Put.
+
+| Name | Input | Output |
+| ---- | ----- | ------ |
+| Replicate | [ReplicateRequest](#neo.fs.v2.object.ReplicateRequest) | [ReplicateResponse](#neo.fs.v2.object.ReplicateResponse) |
  <!-- end services -->
 
 
@@ -687,6 +700,29 @@ Object payload range. Ranges of zero length SHOULD be considered as invalid.
 | length | [uint64](#uint64) |  | Length in bytes of the object payload range |
 
 
+<a name="neo.fs.v2.object.ReplicateRequest"></a>
+
+### Message ReplicateRequest
+Replicate RPC request
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| object | [Object](#neo.fs.v2.object.Object) |  | Object to be replicated. |
+| signature | [neo.fs.v2.refs.Signature](#neo.fs.v2.refs.Signature) |  | Signature of all other request fields serialized in Protocol Buffers v3 format in ascending order of fields. |
+
+
+<a name="neo.fs.v2.object.ReplicateResponse"></a>
+
+### Message ReplicateResponse
+Replicate RPC response
+
+
+| Field | Type | Label | Description |
+| ----- | ---- | ----- | ----------- |
+| status | [neo.fs.v2.status.Status](#neo.fs.v2.status.Status) |  | Operation execution status with one of the enumerated codes. |
+
+
 <a name="neo.fs.v2.object.SearchRequest"></a>
 
 ### Message SearchRequest
@@ -804,6 +840,22 @@ Object Search response body
 
  <!-- end messages -->
 
+
+<a name="neo.fs.v2.object.ReplicateResponse.Code"></a>
+
+### ReplicateResponse.Code
+Operation status codes.
+
+| Name | Number | Description |
+| ---- | ------ | ----------- |
+| OK | 0 | Object has been replicated successfully. |
+| INTERNAL | 1 | Internal server error described in the text message. |
+| BAD_REQUEST | 2 | Request message format violation. |
+| UNAUTHORIZED | 3 | Request signature is missing or incorrect. |
+| FORBIDDEN | 4 | The client does not authenticate any NeoFS storage node matching storage policy of the container referenced by the replicated object. |
+| PRECONDITION_FAILED | 5 | The server is not a NeoFS storage node matching storage policy of the container referenced by the replicated object. |
+
+
  <!-- end enums -->