diff --git a/java/com/google/gerrit/plugins/checks/api/ListPendingChecks.java b/java/com/google/gerrit/plugins/checks/api/ListPendingChecks.java
index a4535bc..9bc5bb6 100644
--- a/java/com/google/gerrit/plugins/checks/api/ListPendingChecks.java
+++ b/java/com/google/gerrit/plugins/checks/api/ListPendingChecks.java
@@ -33,7 +33,6 @@
   private final AdministrateCheckersPermission permission;
 
   private CheckerUuid checkerUuid;
-  private String scheme;
   private List<CheckState> states = new ArrayList<>(CheckState.values().length);
 
   @Option(
@@ -45,11 +44,6 @@
     this.checkerUuid = checkerUuid;
   }
 
-  @Option(name = "--scheme", metaVar = "SCHEME", usage = "checker scheme")
-  public void setScheme(String scheme) {
-    this.scheme = scheme;
-  }
-
   @Option(name = "--state", metaVar = "STATE", usage = "check state")
   public void addState(CheckState state) {
     this.states.add(state);
@@ -72,12 +66,8 @@
       states.add(CheckState.NOT_STARTED);
     }
 
-    if (checkerUuid == null && scheme == null) {
-      throw new BadRequestException("checker or scheme is required");
-    }
-
-    if (checkerUuid != null && scheme != null) {
-      throw new BadRequestException("checker and scheme are mutually exclusive");
+    if (checkerUuid == null) {
+      throw new BadRequestException("checker UUID is required");
     }
 
     // TODO(ekempin): Implement this REST endpoint
diff --git a/java/com/google/gerrit/plugins/checks/api/PendingChecks.java b/java/com/google/gerrit/plugins/checks/api/PendingChecks.java
index 8b0811b..361472b 100644
--- a/java/com/google/gerrit/plugins/checks/api/PendingChecks.java
+++ b/java/com/google/gerrit/plugins/checks/api/PendingChecks.java
@@ -52,17 +52,6 @@
   }
 
   /**
-   * Lists the pending checks for all checkers of the specified checker scheme.
-   *
-   * @param scheme the checker scheme for which pending checks should be listed
-   * @param checkStates the states that should be considered as pending, if not specified {@link
-   *     CheckState#NOT_STARTED} is assumed.
-   * @return the pending checks
-   */
-  List<PendingChecksInfo> listForScheme(String scheme, CheckState... checkStates)
-      throws RestApiException;
-
-  /**
    * A default implementation which allows source compatibility when adding new methods to the
    * interface.
    */
@@ -71,10 +60,5 @@
     public List<PendingChecksInfo> list(CheckerUuid checkerUuid, CheckState... checkStates) {
       throw new NotImplementedException();
     }
-
-    @Override
-    public List<PendingChecksInfo> listForScheme(String scheme, CheckState... checkStates) {
-      throw new NotImplementedException();
-    }
   }
 }
diff --git a/java/com/google/gerrit/plugins/checks/api/PendingChecksImpl.java b/java/com/google/gerrit/plugins/checks/api/PendingChecksImpl.java
index 0b9c139..ca4cf18 100644
--- a/java/com/google/gerrit/plugins/checks/api/PendingChecksImpl.java
+++ b/java/com/google/gerrit/plugins/checks/api/PendingChecksImpl.java
@@ -46,17 +46,4 @@
       throw asRestApiException("Cannot list pending checks", e);
     }
   }
-
-  @Override
-  public List<PendingChecksInfo> listForScheme(String scheme, CheckState... checkStates)
-      throws RestApiException {
-    try {
-      ListPendingChecks listPendingChecks = listPendingChecksProvider.get();
-      listPendingChecks.setScheme(scheme);
-      Stream.of(checkStates).forEach(listPendingChecks::addState);
-      return listPendingChecks.apply(TopLevelResource.INSTANCE);
-    } catch (Exception e) {
-      throw asRestApiException("Cannot list pending checks for scheme", e);
-    }
-  }
 }
diff --git a/javatests/com/google/gerrit/plugins/checks/acceptance/api/ListPendingChecksIT.java b/javatests/com/google/gerrit/plugins/checks/acceptance/api/ListPendingChecksIT.java
index 7cb8d53..2dd95f1 100644
--- a/javatests/com/google/gerrit/plugins/checks/acceptance/api/ListPendingChecksIT.java
+++ b/javatests/com/google/gerrit/plugins/checks/acceptance/api/ListPendingChecksIT.java
@@ -29,10 +29,12 @@
   @Inject private RequestScopeOperations requestScopeOperations;
 
   @Test
-  public void specifyingEitherCheckerUuidOrSchemeIsRequired() throws Exception {
-    exception.expect(BadRequestException.class);
-    exception.expectMessage("checker or scheme is required");
-    pendingChecksApi.listForScheme(null);
+  public void specifyingCheckerUuidIsRequired() throws Exception {
+    // The extension API doesn't allow to not specify a checker UUID. Call the endpoint over REST to
+    // test this.
+    RestResponse response = adminRestSession.get("/plugins/checks/checks.pending/");
+    response.assertBadRequest();
+    assertThat(response.getEntityContent()).isEqualTo("checker UUID is required");
   }
 
   @Test
@@ -43,18 +45,6 @@
   }
 
   @Test
-  public void cannotSpecifyCheckerUuidAndScheme() throws Exception {
-    // The extension API doesn't allow to specify checker UUID and scheme at the same time. Call the
-    // endpoint over REST to test this.
-    RestResponse response =
-        adminRestSession.get(
-            String.format(
-                "/plugins/checks/checks.pending/?checker=%s&scheme=%s", "foo:bar", "foo"));
-    response.assertBadRequest();
-    assertThat(response.getEntityContent()).isEqualTo("checker and scheme are mutually exclusive");
-  }
-
-  @Test
   public void cannotListPendingChecksWithoutAdministrateCheckers() throws Exception {
     requestScopeOperations.setApiUser(user.getId());
 
@@ -69,11 +59,4 @@
     exception.expectMessage("not implemented");
     pendingChecksApi.list("foo:bar");
   }
-
-  @Test
-  public void listPendingChecksForSchemeNotImplemented() throws Exception {
-    exception.expect(MethodNotAllowedException.class);
-    exception.expectMessage("not implemented");
-    pendingChecksApi.listForScheme("foo");
-  }
 }
diff --git a/src/main/resources/Documentation/rest-api-pending-checks.md b/src/main/resources/Documentation/rest-api-pending-checks.md
index 39e2a1a..62e64c8 100644
--- a/src/main/resources/Documentation/rest-api-pending-checks.md
+++ b/src/main/resources/Documentation/rest-api-pending-checks.md
@@ -11,7 +11,7 @@
 ### <a id="get-checker"> List Pending Checks
 _'GET /checks.pending/'_
 
-Lists pending checks for a checker or for all checkers of a scheme.
+Lists pending checks for a checker.
 
 Checks are pending if they are in a non-final state and the external
 checker system intends to post further updates on them.
@@ -23,11 +23,7 @@
 Request parameters:
 
 * <a id="checker-param"> `checker`: the UUID of the checker for which
-  pending checks should be listed (optional, if not specified `scheme`
-  must be set)
-* <a id="scheme-param"> `scheme`: the scheme of the checkers for which
-  pending checks should be listed (optional, if not specified `checker`
-  must be set)
+  pending checks should be listed (required)
 * <a id="state-param"> `state`: state that should be considered as
   pending (optional, by default the state `NOT_STARTED` is assumed,
   this option may be specified multiple times to request checks
@@ -81,56 +77,6 @@
   ]
 ```
 
-#### Request by checker scheme
-
-```
-  GET /checks.pending/?scheme=test&state=NOT_STARTED&state=SCHEDULED HTTP/1.0
-```
-
-As response a list of [PendingChecksInfo](#pending-checks-info)
-entities is returned that describes the pending checks.
-
-#### Response by checker scheme
-
-```
-  HTTP/1.1 200 OK
-  Content-Disposition: attachment
-  Content-Type: application/json; charset=UTF-8
-  )]}'
-  [
-    {
-      "patch_set": {
-        "project": "test-project",
-        "change_number": 1,
-        "patch_set_id": 1,
-      }
-      "pending_checks": {
-        "test:my-checker": {
-          "state": "NOT_STARTED",
-        },
-        "test:my-other-checker": {
-          "state": "SCHEDULED",
-        }
-      }
-    },
-    {
-      "patch_set": {
-        "project": "test-project",
-        "change_number": 5,
-        "patch_set_id": 2,
-      }
-      "pending_checks": {
-        "test:my-checker": {
-          "state": "NOT_STARTED",
-        },
-        "test:my-other-checker": {
-          "state": "NOT_STARTED",
-        }
-      }
-    }
-  ]
-```
-
 ## <a id="json-entities"> JSON Entities
 
 ### <a id="checkable-patch-set-info"> CheckablePatchSetInfo