diff --git a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.ts b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.ts
index 6c8029796c..6f0ac191c3 100644
--- a/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.ts
+++ b/polygerrit-ui/app/elements/admin/gr-create-repo-dialog/gr-create-repo-dialog.ts
@@ -28,7 +28,7 @@ import {htmlTemplate} from './gr-create-repo-dialog_html';
 import {encodeURL, getBaseUrl} from '../../../utils/url-util';
 import {page} from '../../../utils/page-wrapper-utils';
 import {customElement, observe, property} from '@polymer/decorators';
-import {GrRestApiInterface} from '../../shared/gr-rest-api-interface/gr-rest-api-interface';
+import {RestApiService} from '../../../services/services/gr-rest-api/gr-rest-api';
 import {ProjectInput, RepoName} from '../../../types/common';
 import {hasOwnProperty} from '../../../utils/common-util';
 import {AutocompleteQuery} from '../../shared/gr-autocomplete/gr-autocomplete';
@@ -41,7 +41,7 @@ declare global {
 
 export interface GrCreateRepoDialog {
   $: {
-    restAPI: GrRestApiInterface;
+    restAPI: RestApiService & Element;
   };
 }
 
diff --git a/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list.ts b/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list.ts
index 00994c8b93..a34a46675e 100644
--- a/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list.ts
+++ b/polygerrit-ui/app/elements/admin/gr-repo-list/gr-repo-list.ts
@@ -29,7 +29,7 @@ import {ListViewMixin} from '../../../mixins/gr-list-view-mixin/gr-list-view-mix
 import {GerritNav} from '../../core/gr-navigation/gr-navigation';
 import {customElement, property, observe, computed} from '@polymer/decorators';
 import {AppElementAdminParams} from '../../gr-app-types';
-import {GrRestApiInterface} from '../../shared/gr-rest-api-interface/gr-rest-api-interface';
+import {RestApiService} from '../../../services/services/gr-rest-api/gr-rest-api';
 import {GrOverlay} from '../../shared/gr-overlay/gr-overlay';
 import {RepoName, ProjectInfoWithName} from '../../../types/common';
 import {GrCreateRepoDialog} from '../gr-create-repo-dialog/gr-create-repo-dialog';
@@ -43,7 +43,7 @@ declare global {
 
 export interface GrRepoList {
   $: {
-    restAPI: GrRestApiInterface;
+    restAPI: RestApiService & Element;
     createOverlay: GrOverlay;
     createNewModal: GrCreateRepoDialog;
   };
diff --git a/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands.ts b/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands.ts
index 54f6428ba2..fbef471c29 100644
--- a/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands.ts
+++ b/polygerrit-ui/app/elements/shared/gr-download-commands/gr-download-commands.ts
@@ -23,8 +23,8 @@ import {LegacyElementMixin} from '@polymer/polymer/lib/legacy/legacy-element-mix
 import {PolymerElement} from '@polymer/polymer/polymer-element';
 import {htmlTemplate} from './gr-download-commands_html';
 import {customElement, property, observe} from '@polymer/decorators';
-import {GrRestApiInterface} from '../gr-rest-api-interface/gr-rest-api-interface';
 import {PaperTabsElement} from '@polymer/paper-tabs/paper-tabs';
+import {RestApiService} from '../../../services/services/gr-rest-api/gr-rest-api';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -35,7 +35,7 @@ declare global {
 export interface GrDownloadCommands {
   $: {
     downloadTabs: PaperTabsElement;
-    restAPI: GrRestApiInterface;
+    restAPI: RestApiService & Element;
   };
 }
 
diff --git a/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker.ts b/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker.ts
index 1b2d6fc67d..01eada8f0c 100644
--- a/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker.ts
+++ b/polygerrit-ui/app/elements/shared/gr-repo-branch-picker/gr-repo-branch-picker.ts
@@ -33,7 +33,7 @@ import {
   BranchInfo,
 } from '../../../types/common';
 import {GrLabeledAutocomplete} from '../gr-labeled-autocomplete/gr-labeled-autocomplete';
-import {GrRestApiInterface} from '../gr-rest-api-interface/gr-rest-api-interface';
+import {RestApiService} from '../../../services/services/gr-rest-api/gr-rest-api';
 
 const SUGGESTIONS_LIMIT = 15;
 const REF_PREFIX = 'refs/heads/';
@@ -42,7 +42,7 @@ export interface GrRepoBranchPicker {
   $: {
     repoInput: GrLabeledAutocomplete;
     branchInput: GrLabeledAutocomplete;
-    restAPI: GrRestApiInterface;
+    restAPI: RestApiService & Element;
   };
 }
 @customElement('gr-repo-branch-picker')
diff --git a/polygerrit-ui/app/services/services/gr-rest-api/gr-rest-api.ts b/polygerrit-ui/app/services/services/gr-rest-api/gr-rest-api.ts
index 6aa00d0d4f..594b3597d0 100644
--- a/polygerrit-ui/app/services/services/gr-rest-api/gr-rest-api.ts
+++ b/polygerrit-ui/app/services/services/gr-rest-api/gr-rest-api.ts
@@ -72,6 +72,7 @@ import {
   Password,
   ProjectWatchInfo,
   NameToProjectInfoMap,
+  ProjectInput,
 } from '../../../types/common';
 import {ParsedChangeInfo} from '../../../elements/shared/gr-rest-api-interface/gr-reviewer-updates-parser';
 import {HttpMethod} from '../../../constants/constants';
@@ -330,6 +331,13 @@ export interface RestApiService {
     errFn?: ErrorCallback
   ): Promise<ProjectAccessInfo | undefined>;
 
+  createRepo(config: ProjectInput & {name: RepoName}): Promise<Response>;
+  createRepo(
+    config: ProjectInput & {name: RepoName},
+    errFn: ErrorCallback
+  ): Promise<Response | undefined>;
+  createRepo(config: ProjectInput, errFn?: ErrorCallback): Promise<Response>;
+
   getRepo(
     repo: RepoName,
     errFn?: ErrorCallback