[DOCS] Add links to ESQL APIs

Author: lcawl

docs/reference/esql/esql-apis.asciidoc

@@ -1,6 +1,14 @@
 [[esql-apis]]
 == {esql} APIs
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-es}/group/endpoint-esql[ES|QL APIs].
+--
+
+https://www.elastic.co/docs/api/doc/elasticsearch/operation/operation-esql-query
+
 The <<esql,{es} Query Language ({esql})>> provides a powerful way to filter, transform,
 and analyze data stored in {es}, and in the future in other runtimes. For an
 overview of {esql} and related tutorials, see <<esql>>.

docs/reference/esql/esql-async-query-api.asciidoc

@@ -4,6 +4,12 @@
 <titleabbrev>{esql} async query API</titleabbrev>
 ++++
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-es}/group/endpoint-esql[ES|QL APIs].
+--
+
 Runs an async <<esql,{esql} query>>.
 
 The async query API lets you asynchronously execute a query request,

docs/reference/esql/esql-async-query-delete-api.asciidoc

@@ -4,6 +4,12 @@
 <titleabbrev>{esql} async query delete API</titleabbrev>
 ++++
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-es}/group/endpoint-esql[ES|QL APIs].
+--
+
 The <<esql,{esql}>> async query delete API is used to manually delete an async query
 by ID. If the query is still running, the query will be cancelled. Otherwise,
 the stored results are deleted.

docs/reference/esql/esql-async-query-get-api.asciidoc

@@ -4,6 +4,12 @@
 <titleabbrev>{esql} async query get API</titleabbrev>
 ++++
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-es}/group/endpoint-esql[ES|QL APIs].
+--
+
 Returns the current status and available results for an <<esql-async-query-api,{esql}
 async query>> or a stored results.
 

docs/reference/esql/esql-query-api.asciidoc

@@ -4,6 +4,12 @@
 <titleabbrev>{esql} query API</titleabbrev>
 ++++
 
+.New API Reference
+[sidebar]
+--
+For the most up-to-date API details, refer to {api-es}/group/endpoint-esql[ES|QL APIs].
+--
+
 Returns search results for an <<esql,ES|QL ({es} query language)>> query.
 
 [source,console]