diff --git a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/action/GetJobsAction.java b/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/action/GetJobsAction.java
index 12867013cfe..b8d68eec3c8 100644
--- a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/action/GetJobsAction.java
+++ b/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/action/GetJobsAction.java
@@ -93,8 +93,6 @@ public class GetJobsAction extends Action<GetJobsAction.Request, GetJobsAction.R
         public static final ObjectParser<Request, ParseFieldMatcherSupplier> PARSER = new ObjectParser<>(NAME, Request::new);
         public static final ParseField METRIC = new ParseField("metric");
 
-
-
         static {
             PARSER.declareString(Request::setJobId, Job.ID);
             PARSER.declareObject(Request::setPageParams, PageParams.PARSER, PageParams.PAGE);
@@ -104,20 +102,23 @@ public class GetJobsAction extends Action<GetJobsAction.Request, GetJobsAction.R
             }, METRIC);
         }
 
-        private String jobId;
+        private String jobId = null;
+        private PageParams pageParams = null;
         private boolean config;
         private boolean dataCounts;
         private boolean modelSizeStats;
         private boolean schedulerStatus;
         private boolean status;
-        private PageParams pageParams;
+
 
         public Request() {
-            pageParams = new PageParams();
             config = true;
         }
 
         public void setJobId(String jobId) {
+            if (pageParams != null) {
+                throw new IllegalArgumentException("Cannot set [from, size] when getting a single job.");
+            }
             this.jobId = jobId;
         }
 
@@ -130,6 +131,9 @@ public class GetJobsAction extends Action<GetJobsAction.Request, GetJobsAction.R
         }
 
         public void setPageParams(PageParams pageParams) {
+            if (jobId != null) {
+                throw new IllegalArgumentException("Cannot set [jobId] when getting multiple jobs.");
+            }
             this.pageParams = ExceptionsHelper.requireNonNull(pageParams, PageParams.PAGE.getPreferredName());
         }
 
@@ -508,9 +512,11 @@ public class GetJobsAction extends Action<GetJobsAction.Request, GetJobsAction.R
                         request.getJobId(), jobConfig, dataCounts, modelSizeStats, schedulerStatus, jobStatus);
                 response = new QueryPage<>(Collections.singletonList(jobInfo), 1, Job.RESULTS_FIELD);
 
-            } else {
+            } else if (request.getPageParams() != null) {
                 // Multiple Jobs
-                QueryPage<Job> jobsPage = jobManager.getJobs(request.pageParams.getFrom(), request.pageParams.getSize(), state);
+
+                PageParams pageParams = request.getPageParams();
+                QueryPage<Job> jobsPage = jobManager.getJobs(pageParams.getFrom(), pageParams.getSize(), state);
                 List<Response.JobInfo> jobInfoList = new ArrayList<>();
                 for (Job job : jobsPage.results()) {
                     Job jobConfig = request.config() ? job : null;
@@ -523,6 +529,8 @@ public class GetJobsAction extends Action<GetJobsAction.Request, GetJobsAction.R
                     jobInfoList.add(jobInfo);
                 }
                 response = new QueryPage<>(jobInfoList, jobsPage.count(), Job.RESULTS_FIELD);
+            } else {
+                throw new IllegalStateException("Both jobId and pageParams are null");
             }
 
             listener.onResponse(new Response(response));
diff --git a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/rest/job/RestGetJobsAction.java b/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/rest/job/RestGetJobsAction.java
index d5e5d3f957a..7148a2a5059 100644
--- a/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/rest/job/RestGetJobsAction.java
+++ b/elasticsearch/src/main/java/org/elasticsearch/xpack/prelert/rest/job/RestGetJobsAction.java
@@ -57,13 +57,21 @@ public class RestGetJobsAction extends BaseRestHandler {
             XContentParser parser = XContentFactory.xContent(bodyBytes).createParser(bodyBytes);
             request = GetJobsAction.Request.PARSER.apply(parser, () -> parseFieldMatcher);
         } else {
+            String jobId = restRequest.param(Job.ID.getPreferredName());
             request = new GetJobsAction.Request();
-            request.setJobId(restRequest.param(Job.ID.getPreferredName()));
+            if (jobId != null && !jobId.isEmpty()) {
+                request.setJobId(jobId);
+            }
+            if (restRequest.hasParam(PageParams.FROM.getPreferredName())
+                    || restRequest.hasParam(PageParams.SIZE.getPreferredName())
+                    || jobId == null) {
+                request.setPageParams(new PageParams(restRequest.paramAsInt(PageParams.FROM.getPreferredName(), PageParams.DEFAULT_FROM),
+                        restRequest.paramAsInt(PageParams.SIZE.getPreferredName(), PageParams.DEFAULT_SIZE)));
+            }
             Set<String> stats = Strings.splitStringByCommaToSet(
                     restRequest.param(GetJobsAction.Request.METRIC.getPreferredName(), "config"));
             request.setStats(stats);
-            request.setPageParams(new PageParams(restRequest.paramAsInt(PageParams.FROM.getPreferredName(), PageParams.DEFAULT_FROM),
-                    restRequest.paramAsInt(PageParams.SIZE.getPreferredName(), PageParams.DEFAULT_SIZE)));
+
         }
 
         return channel -> transportGetJobAction.execute(request, new RestStatusToXContentListener<>(channel));
diff --git a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/action/GetJobActionRequestTests.java b/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/action/GetJobActionRequestTests.java
index 8fbeb0ed7e3..009c38b9428 100644
--- a/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/action/GetJobActionRequestTests.java
+++ b/elasticsearch/src/test/java/org/elasticsearch/xpack/prelert/action/GetJobActionRequestTests.java
@@ -24,8 +24,7 @@ public class GetJobActionRequestTests extends AbstractStreamableTestCase<GetJobs
             int maxSize = PageParams.MAX_FROM_SIZE_SUM - from;
             int size = randomInt(maxSize);
             instance.setPageParams(new PageParams(from, size));
-        }
-        if (randomBoolean()) {
+        } else {
             instance.setJobId(randomAsciiOfLengthBetween(1, 20));
         }
         return instance;
diff --git a/elasticsearch/src/test/resources/rest-api-spec/test/jobs_crud.yaml b/elasticsearch/src/test/resources/rest-api-spec/test/jobs_crud.yaml
index b529a271628..10d57d63339 100644
--- a/elasticsearch/src/test/resources/rest-api-spec/test/jobs_crud.yaml
+++ b/elasticsearch/src/test/resources/rest-api-spec/test/jobs_crud.yaml
@@ -36,6 +36,11 @@
   - match: { count: 1 }
   - match: { jobs.0.config.job_id: "farequote" }
 
+  - do:
+      xpack.prelert.get_jobs: {}
+  - match: { count: 1 }
+  - match: { jobs.0.config.job_id: "farequote" }
+
   - do:
       xpack.prelert.delete_job:
         job_id: "farequote"
@@ -95,3 +100,48 @@
                 "time_format":"yyyy-MM-dd HH:mm:ssX"
             }
           }
+
+---
+"Test jobid + from and/or size":
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        job_id: "job-stats-test"
+        from: 0
+
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        job_id: "job-stats-test"
+        size: 100
+
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        job_id: "job-stats-test"
+        from: 0
+        size: 100
+
+---
+"Test jobid + from and/or size (via body)":
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        body:
+          job_id: "job-stats-test"
+          from: 0
+
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        body:
+          job_id: "job-stats-test"
+          size: 100
+
+  - do:
+      catch: request
+      xpack.prelert.get_jobs:
+        body:
+          job_id: "job-stats-test"
+          from: 0
+          size: 100