diff --git a/cmd/api/docs/docs.go b/cmd/api/docs/docs.go
index 771f8ab..7b217a4 100644
--- a/cmd/api/docs/docs.go
+++ b/cmd/api/docs/docs.go
@@ -1,6 +1,3 @@
-// SPDX-FileCopyrightText: 2024 PK Lab AG <contact@pklab.io>
-// SPDX-License-Identifier: MIT
-
 // Package docs Code generated by swaggo/swag. DO NOT EDIT
 package docs
 
@@ -2486,6 +2483,11 @@ const docTemplate = `{
         "responses.State": {
             "type": "object",
             "properties": {
+                "chain_id": {
+                    "type": "string",
+                    "format": "string",
+                    "example": "astria-dusk-7"
+                },
                 "hash": {
                     "type": "string",
                     "format": "string",
diff --git a/cmd/api/docs/swagger.json b/cmd/api/docs/swagger.json
index f6d12c8..9ff807a 100644
--- a/cmd/api/docs/swagger.json
+++ b/cmd/api/docs/swagger.json
@@ -2476,6 +2476,11 @@
         "responses.State": {
             "type": "object",
             "properties": {
+                "chain_id": {
+                    "type": "string",
+                    "format": "string",
+                    "example": "astria-dusk-7"
+                },
                 "hash": {
                     "type": "string",
                     "format": "string",
diff --git a/cmd/api/docs/swagger.yaml b/cmd/api/docs/swagger.yaml
index f84db05..7397d2d 100644
--- a/cmd/api/docs/swagger.yaml
+++ b/cmd/api/docs/swagger.yaml
@@ -324,6 +324,10 @@ definitions:
     type: object
   responses.State:
     properties:
+      chain_id:
+        example: astria-dusk-7
+        format: string
+        type: string
       hash:
         example: 652452A670018D629CC116E510BA88C1CABE061336661B1F3D206D248BD558AF
         format: string
diff --git a/cmd/api/handler/responses/state.go b/cmd/api/handler/responses/state.go
index 2ef74d5..e5e51cf 100644
--- a/cmd/api/handler/responses/state.go
+++ b/cmd/api/handler/responses/state.go
@@ -15,6 +15,7 @@ import (
 type State struct {
 	Id            uint64         `example:"321"                                                              format:"int64"     json:"id"             swaggertype:"integer"`
 	Name          string         `example:"indexer"                                                          format:"string"    json:"name"           swaggertype:"string"`
+	ChainID       string         `example:"astria-dusk-7"                                                    format:"string"    json:"chain_id"       swaggertype:"string"`
 	LastHeight    pkgTypes.Level `example:"100"                                                              format:"int64"     json:"last_height"    swaggertype:"integer"`
 	LastHash      string         `example:"652452A670018D629CC116E510BA88C1CABE061336661B1F3D206D248BD558AF" format:"string"    json:"hash"           swaggertype:"string"`
 	LastTime      time.Time      `example:"2023-07-04T03:10:57+00:00"                                        format:"date-time" json:"last_time"      swaggertype:"string"`
@@ -30,6 +31,7 @@ func NewState(state storage.State) State {
 	return State{
 		Id:            state.Id,
 		Name:          state.Name,
+		ChainID:       state.ChainId,
 		LastHeight:    state.LastHeight,
 		LastHash:      hex.EncodeToString(state.LastHash),
 		LastTime:      state.LastTime,
diff --git a/cmd/api/handler/state_test.go b/cmd/api/handler/state_test.go
index 7b468cc..4e372c7 100644
--- a/cmd/api/handler/state_test.go
+++ b/cmd/api/handler/state_test.go
@@ -26,6 +26,7 @@ var (
 	testState       = storage.State{
 		Id:            1,
 		Name:          "test",
+		ChainId:       "chain-id",
 		LastHeight:    100,
 		LastTime:      testTime,
 		TotalTx:       1234,
@@ -83,6 +84,7 @@ func (s *StateTestSuite) TestHead() {
 	s.Require().NoError(err)
 	s.Require().EqualValues(1, state.Id)
 	s.Require().EqualValues("test", state.Name)
+	s.Require().EqualValues("chain-id", state.ChainID)
 	s.Require().EqualValues(100, state.LastHeight)
 	s.Require().EqualValues(1234, state.TotalTx)
 	s.Require().EqualValues(123, state.TotalAccounts)