diff --git a/java-client/src/main/java/org/opensearch/client/opensearch/indices/CreateIndexRequest.java b/java-client/src/main/java/org/opensearch/client/opensearch/indices/CreateIndexRequest.java
index 512f0e77f9..3d413e1367 100644
--- a/java-client/src/main/java/org/opensearch/client/opensearch/indices/CreateIndexRequest.java
+++ b/java-client/src/main/java/org/opensearch/client/opensearch/indices/CreateIndexRequest.java
@@ -33,6 +33,7 @@
 package org.opensearch.client.opensearch.indices;
 
 import jakarta.json.stream.JsonGenerator;
+import java.io.StringReader;
 import java.util.HashMap;
 import java.util.Map;
 import java.util.function.Function;
@@ -43,6 +44,7 @@
 import org.opensearch.client.json.JsonpSerializable;
 import org.opensearch.client.json.ObjectBuilderDeserializer;
 import org.opensearch.client.json.ObjectDeserializer;
+import org.opensearch.client.json.jackson.JacksonJsonpMapper;
 import org.opensearch.client.opensearch._types.ErrorResponse;
 import org.opensearch.client.opensearch._types.RequestBase;
 import org.opensearch.client.opensearch._types.Time;
@@ -304,6 +306,25 @@ public final Builder mappings(@Nullable TypeMapping value) {
             return this;
         }
 
+        /**
+         * Mapping for fields in the index. If specified, this mapping can include:
+         * <ul>
+         * <li>Field names</li>
+         * <li>Field data types</li>
+         * <li>Mapping parameters</li>
+         * </ul>
+         * <p>
+         * API name: {@code mappings}
+         */
+        public final Builder mappings(@Nullable String typeMappingJson) {
+            return this.mappings(deserialize(TypeMapping._DESERIALIZER, typeMappingJson));
+        }
+
+        private <T> T deserialize(JsonpDeserializer<T> deserializer, String json) {
+            JsonpMapper jsonpMapper = new JacksonJsonpMapper();
+            return deserializer.deserialize(jsonpMapper.jsonProvider().createParser(new StringReader(json)), jsonpMapper);
+        }
+
         /**
          * Mapping for fields in the index. If specified, this mapping can include:
          * <ul>
@@ -366,6 +387,13 @@ public final Builder settings(@Nullable IndexSettings value) {
             return this;
         }
 
+        /**
+         * API name: {@code settings}
+         */
+        public final Builder settings(String indexSettingsJson) {
+            return this.settings(deserialize(IndexSettings._DESERIALIZER, indexSettingsJson));
+        }
+
         /**
          * API name: {@code settings}
          */