diff --git a/clients/client-opensearchserverless/README.md b/clients/client-opensearchserverless/README.md
index ceb56726a6b3e..4479f728b5c8b 100644
--- a/clients/client-opensearchserverless/README.md
+++ b/clients/client-opensearchserverless/README.md
@@ -19,7 +19,7 @@ Amazon OpenSearch Serverless?</a>
 
 ## Installing
 
-To install the this package, simply type add or install @aws-sdk/client-opensearchserverless
+To install this package, simply type add or install @aws-sdk/client-opensearchserverless
 using your favorite package manager:
 
 - `npm install @aws-sdk/client-opensearchserverless`
diff --git a/clients/client-opensearchserverless/src/commands/CreateSecurityConfigCommand.ts b/clients/client-opensearchserverless/src/commands/CreateSecurityConfigCommand.ts
index 5a27cb3e4336e..b16f3fdf0c9ad 100644
--- a/clients/client-opensearchserverless/src/commands/CreateSecurityConfigCommand.ts
+++ b/clients/client-opensearchserverless/src/commands/CreateSecurityConfigCommand.ts
@@ -51,6 +51,11 @@ export interface CreateSecurityConfigCommandOutput extends CreateSecurityConfigR
  *     groupAttribute: "STRING_VALUE",
  *     sessionTimeout: Number("int"),
  *   },
+ *   iamIdentityCenterOptions: { // CreateIamIdentityCenterConfigOptions
+ *     instanceArn: "STRING_VALUE", // required
+ *     userAttribute: "STRING_VALUE",
+ *     groupAttribute: "STRING_VALUE",
+ *   },
  *   clientToken: "STRING_VALUE",
  * };
  * const command = new CreateSecurityConfigCommand(input);
@@ -67,6 +72,14 @@ export interface CreateSecurityConfigCommandOutput extends CreateSecurityConfigR
  * //       groupAttribute: "STRING_VALUE",
  * //       sessionTimeout: Number("int"),
  * //     },
+ * //     iamIdentityCenterOptions: { // IamIdentityCenterConfigOptions
+ * //       instanceArn: "STRING_VALUE",
+ * //       applicationArn: "STRING_VALUE",
+ * //       applicationName: "STRING_VALUE",
+ * //       applicationDescription: "STRING_VALUE",
+ * //       userAttribute: "STRING_VALUE",
+ * //       groupAttribute: "STRING_VALUE",
+ * //     },
  * //     createdDate: Number("long"),
  * //     lastModifiedDate: Number("long"),
  * //   },
diff --git a/clients/client-opensearchserverless/src/commands/GetSecurityConfigCommand.ts b/clients/client-opensearchserverless/src/commands/GetSecurityConfigCommand.ts
index da44dec1d1ea3..d7df161391b8c 100644
--- a/clients/client-opensearchserverless/src/commands/GetSecurityConfigCommand.ts
+++ b/clients/client-opensearchserverless/src/commands/GetSecurityConfigCommand.ts
@@ -58,6 +58,14 @@ export interface GetSecurityConfigCommandOutput extends GetSecurityConfigRespons
  * //       groupAttribute: "STRING_VALUE",
  * //       sessionTimeout: Number("int"),
  * //     },
+ * //     iamIdentityCenterOptions: { // IamIdentityCenterConfigOptions
+ * //       instanceArn: "STRING_VALUE",
+ * //       applicationArn: "STRING_VALUE",
+ * //       applicationName: "STRING_VALUE",
+ * //       applicationDescription: "STRING_VALUE",
+ * //       userAttribute: "STRING_VALUE",
+ * //       groupAttribute: "STRING_VALUE",
+ * //     },
  * //     createdDate: Number("long"),
  * //     lastModifiedDate: Number("long"),
  * //   },
diff --git a/clients/client-opensearchserverless/src/commands/UpdateSecurityConfigCommand.ts b/clients/client-opensearchserverless/src/commands/UpdateSecurityConfigCommand.ts
index 505ed204adbbe..f4b0c6067de3f 100644
--- a/clients/client-opensearchserverless/src/commands/UpdateSecurityConfigCommand.ts
+++ b/clients/client-opensearchserverless/src/commands/UpdateSecurityConfigCommand.ts
@@ -51,6 +51,10 @@ export interface UpdateSecurityConfigCommandOutput extends UpdateSecurityConfigR
  *     groupAttribute: "STRING_VALUE",
  *     sessionTimeout: Number("int"),
  *   },
+ *   iamIdentityCenterOptionsUpdates: { // UpdateIamIdentityCenterConfigOptions
+ *     userAttribute: "STRING_VALUE",
+ *     groupAttribute: "STRING_VALUE",
+ *   },
  *   clientToken: "STRING_VALUE",
  * };
  * const command = new UpdateSecurityConfigCommand(input);
@@ -67,6 +71,14 @@ export interface UpdateSecurityConfigCommandOutput extends UpdateSecurityConfigR
  * //       groupAttribute: "STRING_VALUE",
  * //       sessionTimeout: Number("int"),
  * //     },
+ * //     iamIdentityCenterOptions: { // IamIdentityCenterConfigOptions
+ * //       instanceArn: "STRING_VALUE",
+ * //       applicationArn: "STRING_VALUE",
+ * //       applicationName: "STRING_VALUE",
+ * //       applicationDescription: "STRING_VALUE",
+ * //       userAttribute: "STRING_VALUE",
+ * //       groupAttribute: "STRING_VALUE",
+ * //     },
  * //     createdDate: Number("long"),
  * //     lastModifiedDate: Number("long"),
  * //   },
diff --git a/clients/client-opensearchserverless/src/models/models_0.ts b/clients/client-opensearchserverless/src/models/models_0.ts
index ab8ce1c206d43..19c15d1833ee4 100644
--- a/clients/client-opensearchserverless/src/models/models_0.ts
+++ b/clients/client-opensearchserverless/src/models/models_0.ts
@@ -1538,6 +1538,76 @@ export interface UpdateCollectionResponse {
   updateCollectionDetail?: UpdateCollectionDetail;
 }
 
+/**
+ * @public
+ * @enum
+ */
+export const IamIdentityCenterGroupAttribute = {
+  /**
+   * Group ID
+   */
+  GroupId: "GroupId",
+  /**
+   * Group Name
+   */
+  GroupName: "GroupName",
+} as const;
+
+/**
+ * @public
+ */
+export type IamIdentityCenterGroupAttribute =
+  (typeof IamIdentityCenterGroupAttribute)[keyof typeof IamIdentityCenterGroupAttribute];
+
+/**
+ * @public
+ * @enum
+ */
+export const IamIdentityCenterUserAttribute = {
+  /**
+   * Email
+   */
+  Email: "Email",
+  /**
+   * User ID
+   */
+  UserId: "UserId",
+  /**
+   * User Name
+   */
+  UserName: "UserName",
+} as const;
+
+/**
+ * @public
+ */
+export type IamIdentityCenterUserAttribute =
+  (typeof IamIdentityCenterUserAttribute)[keyof typeof IamIdentityCenterUserAttribute];
+
+/**
+ * <p>Describes IAM Identity Center options for creating an OpenSearch Serverless security configuration in the form of a key-value map.</p>
+ * @public
+ */
+export interface CreateIamIdentityCenterConfigOptions {
+  /**
+   * <p>The ARN of the IAM Identity Center instance used to integrate with OpenSearch Serverless.</p>
+   * @public
+   */
+  instanceArn: string | undefined;
+
+  /**
+   * <p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>.</p>
+   * @public
+   */
+  userAttribute?: IamIdentityCenterUserAttribute;
+
+  /**
+   * <p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>
+   * @public
+   */
+  groupAttribute?: IamIdentityCenterGroupAttribute;
+}
+
 /**
  * @public
  */
@@ -1620,6 +1690,10 @@ export interface SamlConfigOptions {
  * @enum
  */
 export const SecurityConfigType = {
+  /**
+   * iam identity center
+   */
+  iamidentitycenter: "iamidentitycenter",
   /**
    * saml provider
    */
@@ -1660,6 +1734,12 @@ export interface CreateSecurityConfigRequest {
    */
   samlOptions?: SamlConfigOptions;
 
+  /**
+   * <p>Describes IAM Identity Center options in the form of a key-value map. This field is required if you specify iamidentitycenter for the type parameter.</p>
+   * @public
+   */
+  iamIdentityCenterOptions?: CreateIamIdentityCenterConfigOptions;
+
   /**
    * <p>Unique, case-sensitive identifier to ensure idempotency of the request.</p>
    * @public
@@ -1667,6 +1747,49 @@ export interface CreateSecurityConfigRequest {
   clientToken?: string;
 }
 
+/**
+ * <p>Describes IAM Identity Center options for an OpenSearch Serverless security configuration in the form of a key-value map.</p>
+ * @public
+ */
+export interface IamIdentityCenterConfigOptions {
+  /**
+   * <p>The ARN of the IAM Identity Center instance used to integrate with OpenSearch Serverless.</p>
+   * @public
+   */
+  instanceArn?: string;
+
+  /**
+   * <p>The ARN of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>
+   * @public
+   */
+  applicationArn?: string;
+
+  /**
+   * <p>The name of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>
+   * @public
+   */
+  applicationName?: string;
+
+  /**
+   * <p>The description of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>
+   * @public
+   */
+  applicationDescription?: string;
+
+  /**
+   * <p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>
+   *          </p>
+   * @public
+   */
+  userAttribute?: IamIdentityCenterUserAttribute;
+
+  /**
+   * <p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>
+   * @public
+   */
+  groupAttribute?: IamIdentityCenterGroupAttribute;
+}
+
 /**
  * <p>Details about a security configuration for OpenSearch Serverless. </p>
  * @public
@@ -1702,6 +1825,12 @@ export interface SecurityConfigDetail {
    */
   samlOptions?: SamlConfigOptions;
 
+  /**
+   * <p>Describes IAM Identity Center options in the form of a key-value map.</p>
+   * @public
+   */
+  iamIdentityCenterOptions?: IamIdentityCenterConfigOptions;
+
   /**
    * <p>The date the configuration was created.</p>
    * @public
@@ -2624,6 +2753,24 @@ export interface ListVpcEndpointsResponse {
   nextToken?: string;
 }
 
+/**
+ * <p>Describes IAM Identity Center options for updating an OpenSearch Serverless security configuration in the form of a key-value map.</p>
+ * @public
+ */
+export interface UpdateIamIdentityCenterConfigOptions {
+  /**
+   * <p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>.</p>
+   * @public
+   */
+  userAttribute?: IamIdentityCenterUserAttribute;
+
+  /**
+   * <p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>
+   * @public
+   */
+  groupAttribute?: IamIdentityCenterGroupAttribute;
+}
+
 /**
  * @public
  */
@@ -2656,6 +2803,12 @@ export interface UpdateSecurityConfigRequest {
    */
   samlOptions?: SamlConfigOptions;
 
+  /**
+   * <p>Describes IAM Identity Center options in the form of a key-value map.</p>
+   * @public
+   */
+  iamIdentityCenterOptionsUpdates?: UpdateIamIdentityCenterConfigOptions;
+
   /**
    * <p>Unique, case-sensitive identifier to ensure idempotency of the request.</p>
    * @public
diff --git a/clients/client-opensearchserverless/src/protocols/Aws_json1_0.ts b/clients/client-opensearchserverless/src/protocols/Aws_json1_0.ts
index 53f55d863cad2..08edbceb58818 100644
--- a/clients/client-opensearchserverless/src/protocols/Aws_json1_0.ts
+++ b/clients/client-opensearchserverless/src/protocols/Aws_json1_0.ts
@@ -120,6 +120,7 @@ import {
   CreateAccessPolicyRequest,
   CreateAccessPolicyResponse,
   CreateCollectionRequest,
+  CreateIamIdentityCenterConfigOptions,
   CreateLifecyclePolicyRequest,
   CreateLifecyclePolicyResponse,
   CreateSecurityConfigRequest,
@@ -162,6 +163,7 @@ import {
   UpdateAccessPolicyResponse,
   UpdateAccountSettingsRequest,
   UpdateCollectionRequest,
+  UpdateIamIdentityCenterConfigOptions,
   UpdateLifecyclePolicyRequest,
   UpdateLifecyclePolicyResponse,
   UpdateSecurityConfigRequest,
@@ -1565,6 +1567,8 @@ const se_CreateCollectionRequest = (input: CreateCollectionRequest, context: __S
   });
 };
 
+// se_CreateIamIdentityCenterConfigOptions omitted.
+
 /**
  * serializeAws_json1_0CreateLifecyclePolicyRequest
  */
@@ -1585,6 +1589,7 @@ const se_CreateSecurityConfigRequest = (input: CreateSecurityConfigRequest, cont
   return take(input, {
     clientToken: [true, (_) => _ ?? generateIdempotencyToken()],
     description: [],
+    iamIdentityCenterOptions: _json,
     name: [],
     samlOptions: _json,
     type: [],
@@ -1759,6 +1764,8 @@ const se_UpdateCollectionRequest = (input: UpdateCollectionRequest, context: __S
   });
 };
 
+// se_UpdateIamIdentityCenterConfigOptions omitted.
+
 /**
  * serializeAws_json1_0UpdateLifecyclePolicyRequest
  */
@@ -1781,6 +1788,7 @@ const se_UpdateSecurityConfigRequest = (input: UpdateSecurityConfigRequest, cont
     clientToken: [true, (_) => _ ?? generateIdempotencyToken()],
     configVersion: [],
     description: [],
+    iamIdentityCenterOptionsUpdates: _json,
     id: [],
     samlOptions: _json,
   });
@@ -1958,6 +1966,8 @@ const de_GetSecurityPolicyResponse = (output: any, context: __SerdeContext): Get
   }) as any;
 };
 
+// de_IamIdentityCenterConfigOptions omitted.
+
 // de_InternalServerException omitted.
 
 /**
diff --git a/codegen/sdk-codegen/aws-models/opensearchserverless.json b/codegen/sdk-codegen/aws-models/opensearchserverless.json
index 8873b268a0d3b..360887366858d 100644
--- a/codegen/sdk-codegen/aws-models/opensearchserverless.json
+++ b/codegen/sdk-codegen/aws-models/opensearchserverless.json
@@ -1005,6 +1005,33 @@
         }
       }
     },
+    "com.amazonaws.opensearchserverless#CreateIamIdentityCenterConfigOptions": {
+      "type": "structure",
+      "members": {
+        "instanceArn": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterInstanceArn",
+          "traits": {
+            "smithy.api#documentation": "<p>The ARN of the IAM Identity Center instance used to integrate with OpenSearch Serverless.</p>",
+            "smithy.api#required": {}
+          }
+        },
+        "userAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterUserAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>.</p>"
+          }
+        },
+        "groupAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterGroupAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#documentation": "<p>Describes IAM Identity Center options for creating an OpenSearch Serverless security configuration in the form of a key-value map.</p>"
+      }
+    },
     "com.amazonaws.opensearchserverless#CreateLifecyclePolicy": {
       "type": "operation",
       "input": {
@@ -1145,6 +1172,12 @@
             "smithy.api#documentation": "<p>Describes SAML options in in the form of a key-value map. This field is required if\n            you specify <code>saml</code> for the <code>type</code> parameter.</p>"
           }
         },
+        "iamIdentityCenterOptions": {
+          "target": "com.amazonaws.opensearchserverless#CreateIamIdentityCenterConfigOptions",
+          "traits": {
+            "smithy.api#documentation": "<p>Describes IAM Identity Center options in the form of a key-value map. This field is required if you specify iamidentitycenter for the type parameter.</p>"
+          }
+        },
         "clientToken": {
           "target": "com.amazonaws.opensearchserverless#ClientToken",
           "traits": {
@@ -2082,6 +2115,109 @@
         }
       }
     },
+    "com.amazonaws.opensearchserverless#IamIdentityCenterApplicationArn": {
+      "type": "string",
+      "traits": {
+        "smithy.api#length": {
+          "min": 10,
+          "max": 1224
+        },
+        "smithy.api#pattern": "^arn:(aws|aws-us-gov|aws-cn|aws-iso|aws-iso-b):sso::\\d{12}:application/(sso)?ins-[a-zA-Z0-9-.]{16}/apl-[a-zA-Z0-9]{16}$"
+      }
+    },
+    "com.amazonaws.opensearchserverless#IamIdentityCenterConfigOptions": {
+      "type": "structure",
+      "members": {
+        "instanceArn": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterInstanceArn",
+          "traits": {
+            "smithy.api#documentation": "<p>The ARN of the IAM Identity Center instance used to integrate with OpenSearch Serverless.</p>"
+          }
+        },
+        "applicationArn": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterApplicationArn",
+          "traits": {
+            "smithy.api#documentation": "<p>The ARN of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>"
+          }
+        },
+        "applicationName": {
+          "target": "smithy.api#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The name of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>"
+          }
+        },
+        "applicationDescription": {
+          "target": "smithy.api#String",
+          "traits": {
+            "smithy.api#documentation": "<p>The description of the IAM Identity Center application used to integrate with OpenSearch Serverless.</p>"
+          }
+        },
+        "userAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterUserAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>\n         </p>"
+          }
+        },
+        "groupAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterGroupAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#documentation": "<p>Describes IAM Identity Center options for an OpenSearch Serverless security configuration in the form of a key-value map.</p>"
+      }
+    },
+    "com.amazonaws.opensearchserverless#IamIdentityCenterGroupAttribute": {
+      "type": "string",
+      "traits": {
+        "smithy.api#enum": [
+          {
+            "name": "GroupId",
+            "value": "GroupId",
+            "documentation": "Group ID"
+          },
+          {
+            "name": "GroupName",
+            "value": "GroupName",
+            "documentation": "Group Name"
+          }
+        ]
+      }
+    },
+    "com.amazonaws.opensearchserverless#IamIdentityCenterInstanceArn": {
+      "type": "string",
+      "traits": {
+        "smithy.api#length": {
+          "min": 10,
+          "max": 1224
+        },
+        "smithy.api#pattern": "^arn:(aws|aws-us-gov|aws-cn|aws-iso|aws-iso-b):sso:::instance/(sso)?ins-[a-zA-Z0-9-.]{16}$"
+      }
+    },
+    "com.amazonaws.opensearchserverless#IamIdentityCenterUserAttribute": {
+      "type": "string",
+      "traits": {
+        "smithy.api#enum": [
+          {
+            "name": "UserId",
+            "value": "UserId",
+            "documentation": "User ID"
+          },
+          {
+            "name": "UserName",
+            "value": "UserName",
+            "documentation": "User Name"
+          },
+          {
+            "name": "Email",
+            "value": "Email",
+            "documentation": "Email"
+          }
+        ]
+      }
+    },
     "com.amazonaws.opensearchserverless#IndexingCapacityValue": {
       "type": "integer",
       "traits": {
@@ -3825,6 +3961,12 @@
             "smithy.api#documentation": "<p>SAML options for the security configuration in the form of a key-value map.</p>"
           }
         },
+        "iamIdentityCenterOptions": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterConfigOptions",
+          "traits": {
+            "smithy.api#documentation": "<p>Describes IAM Identity Center options in the form of a key-value map.</p>"
+          }
+        },
         "createdDate": {
           "target": "smithy.api#Long",
           "traits": {
@@ -3923,6 +4065,11 @@
             "name": "saml",
             "value": "saml",
             "documentation": "saml provider"
+          },
+          {
+            "name": "iamidentitycenter",
+            "value": "iamidentitycenter",
+            "documentation": "iam identity center"
           }
         ]
       }
@@ -4603,6 +4750,26 @@
         }
       }
     },
+    "com.amazonaws.opensearchserverless#UpdateIamIdentityCenterConfigOptions": {
+      "type": "structure",
+      "members": {
+        "userAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterUserAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The user attribute for this IAM Identity Center integration. Defaults to <code>UserId</code>.</p>"
+          }
+        },
+        "groupAttribute": {
+          "target": "com.amazonaws.opensearchserverless#IamIdentityCenterGroupAttribute",
+          "traits": {
+            "smithy.api#documentation": "<p>The group attribute for this IAM Identity Center integration. Defaults to <code>GroupId</code>.</p>"
+          }
+        }
+      },
+      "traits": {
+        "smithy.api#documentation": "<p>Describes IAM Identity Center options for updating an OpenSearch Serverless security configuration in the form of a key-value map.</p>"
+      }
+    },
     "com.amazonaws.opensearchserverless#UpdateLifecyclePolicy": {
       "type": "operation",
       "input": {
@@ -4752,6 +4919,12 @@
             "smithy.api#documentation": "<p>SAML options in in the form of a key-value map.</p>"
           }
         },
+        "iamIdentityCenterOptionsUpdates": {
+          "target": "com.amazonaws.opensearchserverless#UpdateIamIdentityCenterConfigOptions",
+          "traits": {
+            "smithy.api#documentation": "<p>Describes IAM Identity Center options in the form of a key-value map.</p>"
+          }
+        },
         "clientToken": {
           "target": "com.amazonaws.opensearchserverless#ClientToken",
           "traits": {