diff --git a/x-pack/legacy/plugins/ml/server/routes/apidoc.json b/x-pack/legacy/plugins/ml/server/routes/apidoc.json
index f2ed202ae4777..574065446827d 100644
--- a/x-pack/legacy/plugins/ml/server/routes/apidoc.json
+++ b/x-pack/legacy/plugins/ml/server/routes/apidoc.json
@@ -33,6 +33,12 @@
     "ValidateAnomalyDetector",
     "ForecastAnomalyDetector",
     "GetOverallBuckets",
-    "GetCategories"
+    "GetCategories",
+    "ResultsService",
+    "GetAnomaliesTableData",
+    "GetCategoryDefinition",
+    "GetMaxAnomalyScore",
+    "GetCategoryExamples",
+    "GetPartitionFieldsValues"
   ]
 }
diff --git a/x-pack/legacy/plugins/ml/server/routes/results_service.ts b/x-pack/legacy/plugins/ml/server/routes/results_service.ts
index 6da2868a0fa0d..b44b82ec486d7 100644
--- a/x-pack/legacy/plugins/ml/server/routes/results_service.ts
+++ b/x-pack/legacy/plugins/ml/server/routes/results_service.ts
@@ -134,7 +134,7 @@ export function resultsServiceRoutes({ xpackMainPlugin, router }: RouteInitializ
    *
    * @api {post} /api/ml/results/max_anomaly_score Returns the maximum anomaly_score
    * @apiName GetMaxAnomalyScore
-   * @apiDescription Returns the maximum anomaly_score for result_type:bucket over jobIds for the interval passed in
+   * @apiDescription Returns the maximum anomaly score of the bucket results for the request job ID(s) and time range
    */
   router.post(
     {
@@ -163,9 +163,9 @@ export function resultsServiceRoutes({ xpackMainPlugin, router }: RouteInitializ
   /**
    * @apiGroup ResultsService
    *
-   * @api {post} /api/ml/results/category_examples Returns the maximum anomaly_score
+   * @api {post} /api/ml/results/category_examples Returns category examples
    * @apiName GetCategoryExamples
-   * @apiDescription Returns the categorization examples for the categories with the specified IDs from the given index and job ID
+   * @apiDescription Returns examples for the categories with the specified IDs from the job with the supplied ID
    */
   router.post(
     {
@@ -194,9 +194,9 @@ export function resultsServiceRoutes({ xpackMainPlugin, router }: RouteInitializ
   /**
    * @apiGroup ResultsService
    *
-   * @api {post} /api/ml/results/partition_fields_values Returns partition fields
+   * @api {post} /api/ml/results/partition_fields_values Returns partition fields values
    * @apiName GetPartitionFieldsValues
-   * @apiDescription Returns the record of partition fields with possible values that fit the provided queries.
+   * @apiDescription Returns the partition fields with values that match the provided criteria for the specified job ID.
    */
   router.post(
     {