diff --git a/.env.example b/.env.example
index 7445c4ea3..53597282e 100644
--- a/.env.example
+++ b/.env.example
@@ -59,6 +59,16 @@ REDIS_SENTINEL_MASTER_NAME=
 # ref: https://github.com/chatwoot/chatwoot/issues/2420
 # REDIS_OPENSSL_VERIFY_MODE=none
 
+# OpenSearch / Elasticsearch-compatible search config
+# Set OPENSEARCH_URL to enable advanced search. Elastic Cloud API keys can be configured with either key name below.
+# API key values must be provided without the ApiKey authorization scheme prefix.
+# OPENSEARCH_URL=
+# OPENSEARCH_API_KEY=
+# ELASTICSEARCH_API_KEY=
+# OPENSEARCH_AWS_ACCESS_KEY_ID=
+# OPENSEARCH_AWS_SECRET_ACCESS_KEY=
+# OPENSEARCH_AWS_REGION=us-east-1
+
 # Postgres Database config variables
 # You can leave POSTGRES_DATABASE blank. The default name of
 # the database in the production environment is chatwoot_production
diff --git a/config/initializers/searchkick.rb b/config/initializers/searchkick.rb
index e07f9022c..d1356fd78 100644
--- a/config/initializers/searchkick.rb
+++ b/config/initializers/searchkick.rb
@@ -1,9 +1,18 @@
 Searchkick.queue_name = :async_database_migration if ENV.fetch('OPENSEARCH_URL', '').present?
 
+api_key = ENV.fetch('OPENSEARCH_API_KEY', '').presence || ENV.fetch('ELASTICSEARCH_API_KEY', '').presence
 access_key_id = ENV.fetch('OPENSEARCH_AWS_ACCESS_KEY_ID', '')
 secret_access_key = ENV.fetch('OPENSEARCH_AWS_SECRET_ACCESS_KEY', '')
 
-if access_key_id.present? && secret_access_key.present?
+if api_key.present?
+  Searchkick.client_options = Searchkick.client_options.deep_merge(
+    transport_options: {
+      headers: {
+        'Authorization' => "ApiKey #{api_key}"
+      }
+    }
+  )
+elsif access_key_id.present? && secret_access_key.present?
   region = ENV.fetch('OPENSEARCH_AWS_REGION', 'us-east-1')
 
   Searchkick.aws_credentials = {
diff --git a/spec/config/searchkick_spec.rb b/spec/config/searchkick_spec.rb
new file mode 100644
index 000000000..c4b71d0b1
--- /dev/null
+++ b/spec/config/searchkick_spec.rb
@@ -0,0 +1,53 @@
+require 'rails_helper'
+
+RSpec.describe Searchkick do
+  let(:initializer_path) { Rails.root.join('config/initializers/searchkick.rb') }
+
+  around do |example|
+    original_client_options = described_class.client_options.deep_dup
+    original_queue_name = described_class.queue_name
+    original_aws_credentials = described_class.aws_credentials
+    original_client = described_class.instance_variable_get(:@client)
+
+    example.run
+  ensure
+    described_class.client_options = original_client_options
+    described_class.queue_name = original_queue_name
+    described_class.instance_variable_set(:@aws_credentials, original_aws_credentials)
+    described_class.instance_variable_set(:@client, original_client)
+  end
+
+  it 'configures API key authorization from OPENSEARCH_API_KEY' do
+    described_class.client_options = {}
+
+    with_modified_env OPENSEARCH_API_KEY: 'opensearch-api-key', ELASTICSEARCH_API_KEY: nil,
+                      OPENSEARCH_AWS_ACCESS_KEY_ID: nil, OPENSEARCH_AWS_SECRET_ACCESS_KEY: nil do
+      load initializer_path
+    end
+
+    expect(described_class.client_options).to eq(
+      transport_options: {
+        headers: {
+          'Authorization' => 'ApiKey opensearch-api-key'
+        }
+      }
+    )
+  end
+
+  it 'supports ELASTICSEARCH_API_KEY for Elastic Cloud credentials' do
+    described_class.client_options = {}
+
+    with_modified_env OPENSEARCH_API_KEY: nil, ELASTICSEARCH_API_KEY: 'elastic-api-key',
+                      OPENSEARCH_AWS_ACCESS_KEY_ID: nil, OPENSEARCH_AWS_SECRET_ACCESS_KEY: nil do
+      load initializer_path
+    end
+
+    expect(described_class.client_options).to eq(
+      transport_options: {
+        headers: {
+          'Authorization' => 'ApiKey elastic-api-key'
+        }
+      }
+    )
+  end
+end