diff --git a/.changeset/olive-mails-tell.md b/.changeset/olive-mails-tell.md
new file mode 100644
index 0000000000..763338c6ff
--- /dev/null
+++ b/.changeset/olive-mails-tell.md
@@ -0,0 +1,7 @@
+---
+'@backstage/plugin-azure-devops': patch
+'@backstage/plugin-devtools': patch
+'@backstage/plugin-linguist': patch
+---
+
+Updated to use `fetchApi` as per [ADR013](https://backstage.io/docs/architecture-decisions/adrs-adr013)
diff --git a/plugins/azure-devops/api-report.md b/plugins/azure-devops/api-report.md
index cfff4348ee..3eeb4d8dca 100644
--- a/plugins/azure-devops/api-report.md
+++ b/plugins/azure-devops/api-report.md
@@ -12,6 +12,7 @@ import { BuildRunOptions } from '@backstage/plugin-azure-devops-common';
 import { DashboardPullRequest } from '@backstage/plugin-azure-devops-common';
 import { DiscoveryApi } from '@backstage/core-plugin-api';
 import { Entity } from '@backstage/catalog-model';
+import { FetchApi } from '@backstage/core-plugin-api';
 import { GitTag } from '@backstage/plugin-azure-devops-common';
 import { IdentityApi } from '@backstage/core-plugin-api';
 import { JSX as JSX_2 } from 'react';
@@ -124,6 +125,7 @@ export class AzureDevOpsClient implements AzureDevOpsApi {
   constructor(options: {
     discoveryApi: DiscoveryApi;
     identityApi: IdentityApi;
+    fetchApi: FetchApi;
   });
   // (undocumented)
   getAllTeams(): Promise<Team[]>;
diff --git a/plugins/azure-devops/src/alpha/plugin.tsx b/plugins/azure-devops/src/alpha/plugin.tsx
index 40305c1714..54ac3469be 100644
--- a/plugins/azure-devops/src/alpha/plugin.tsx
+++ b/plugins/azure-devops/src/alpha/plugin.tsx
@@ -21,6 +21,7 @@ import {
   createPageExtension,
   createPlugin,
   discoveryApiRef,
+  fetchApiRef,
   identityApiRef,
 } from '@backstage/frontend-plugin-api';
 import { azureDevOpsApiRef, AzureDevOpsClient } from '../api';
@@ -38,9 +39,13 @@ import { azurePullRequestDashboardRouteRef } from '../routes';
 export const azureDevOpsApi = createApiExtension({
   factory: createApiFactory({
     api: azureDevOpsApiRef,
-    deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-    factory: ({ discoveryApi, identityApi }) =>
-      new AzureDevOpsClient({ discoveryApi, identityApi }),
+    deps: {
+      discoveryApi: discoveryApiRef,
+      identityApi: identityApiRef,
+      fetchApi: fetchApiRef,
+    },
+    factory: ({ discoveryApi, identityApi, fetchApi }) =>
+      new AzureDevOpsClient({ discoveryApi, identityApi, fetchApi }),
   }),
 });
 
diff --git a/plugins/azure-devops/src/api/AzureDevOpsClient.ts b/plugins/azure-devops/src/api/AzureDevOpsClient.ts
index 76e38b064c..f7f3564563 100644
--- a/plugins/azure-devops/src/api/AzureDevOpsClient.ts
+++ b/plugins/azure-devops/src/api/AzureDevOpsClient.ts
@@ -27,7 +27,11 @@ import {
   RepoBuildOptions,
   Team,
 } from '@backstage/plugin-azure-devops-common';
-import { DiscoveryApi, IdentityApi } from '@backstage/core-plugin-api';
+import {
+  DiscoveryApi,
+  FetchApi,
+  IdentityApi,
+} from '@backstage/core-plugin-api';
 import { ResponseError } from '@backstage/errors';
 import { AzureDevOpsApi } from './AzureDevOpsApi';
 
@@ -35,13 +39,16 @@ import { AzureDevOpsApi } from './AzureDevOpsApi';
 export class AzureDevOpsClient implements AzureDevOpsApi {
   private readonly discoveryApi: DiscoveryApi;
   private readonly identityApi: IdentityApi;
+  private readonly fetchApi: FetchApi;
 
   public constructor(options: {
     discoveryApi: DiscoveryApi;
     identityApi: IdentityApi;
+    fetchApi: FetchApi;
   }) {
     this.discoveryApi = options.discoveryApi;
     this.identityApi = options.identityApi;
+    this.fetchApi = options.fetchApi;
   }
 
   public async getRepoBuilds(
@@ -201,7 +208,7 @@ export class AzureDevOpsClient implements AzureDevOpsApi {
     const url = new URL(path, baseUrl);
 
     const { token: idToken } = await this.identityApi.getCredentials();
-    const response = await fetch(url.toString(), {
+    const response = await this.fetchApi.fetch(url.toString(), {
       headers: idToken ? { Authorization: `Bearer ${idToken}` } : {},
     });
 
diff --git a/plugins/azure-devops/src/plugin.ts b/plugins/azure-devops/src/plugin.ts
index 1e76c9e53a..e06ea8f5e0 100644
--- a/plugins/azure-devops/src/plugin.ts
+++ b/plugins/azure-devops/src/plugin.ts
@@ -27,6 +27,7 @@ import {
   createComponentExtension,
   discoveryApiRef,
   identityApiRef,
+  fetchApiRef,
 } from '@backstage/core-plugin-api';
 
 import { AzureDevOpsClient } from './api/AzureDevOpsClient';
@@ -56,9 +57,13 @@ export const azureDevOpsPlugin = createPlugin({
   apis: [
     createApiFactory({
       api: azureDevOpsApiRef,
-      deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-      factory: ({ discoveryApi, identityApi }) =>
-        new AzureDevOpsClient({ discoveryApi, identityApi }),
+      deps: {
+        discoveryApi: discoveryApiRef,
+        identityApi: identityApiRef,
+        fetchApi: fetchApiRef,
+      },
+      factory: ({ discoveryApi, identityApi, fetchApi }) =>
+        new AzureDevOpsClient({ discoveryApi, identityApi, fetchApi }),
     }),
   ],
 });
diff --git a/plugins/devtools/src/alpha/plugin.tsx b/plugins/devtools/src/alpha/plugin.tsx
index 746b90a50f..1854fbfbd9 100644
--- a/plugins/devtools/src/alpha/plugin.tsx
+++ b/plugins/devtools/src/alpha/plugin.tsx
@@ -22,6 +22,7 @@ import {
   createPageExtension,
   createPlugin,
   discoveryApiRef,
+  fetchApiRef,
   identityApiRef,
 } from '@backstage/frontend-plugin-api';
 
@@ -37,9 +38,13 @@ import { rootRouteRef } from '../routes';
 export const devToolsApi = createApiExtension({
   factory: createApiFactory({
     api: devToolsApiRef,
-    deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-    factory: ({ discoveryApi, identityApi }) =>
-      new DevToolsClient({ discoveryApi, identityApi }),
+    deps: {
+      discoveryApi: discoveryApiRef,
+      identityApi: identityApiRef,
+      fetchApi: fetchApiRef,
+    },
+    factory: ({ discoveryApi, identityApi, fetchApi }) =>
+      new DevToolsClient({ discoveryApi, identityApi, fetchApi }),
   }),
 });
 
diff --git a/plugins/devtools/src/api/DevToolsClient.ts b/plugins/devtools/src/api/DevToolsClient.ts
index 0be8294b3f..1702333363 100644
--- a/plugins/devtools/src/api/DevToolsClient.ts
+++ b/plugins/devtools/src/api/DevToolsClient.ts
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
-import { DiscoveryApi, IdentityApi } from '@backstage/core-plugin-api';
+import {
+  DiscoveryApi,
+  FetchApi,
+  IdentityApi,
+} from '@backstage/core-plugin-api';
 import {
   ConfigInfo,
   DevToolsInfo,
@@ -26,13 +30,16 @@ import { DevToolsApi } from './DevToolsApi';
 export class DevToolsClient implements DevToolsApi {
   private readonly discoveryApi: DiscoveryApi;
   private readonly identityApi: IdentityApi;
+  private readonly fetchApi: FetchApi;
 
   public constructor(options: {
     discoveryApi: DiscoveryApi;
     identityApi: IdentityApi;
+    fetchApi: FetchApi;
   }) {
     this.discoveryApi = options.discoveryApi;
     this.identityApi = options.identityApi;
+    this.fetchApi = options.fetchApi;
   }
 
   public async getConfig(): Promise<ConfigInfo | undefined> {
@@ -65,7 +72,7 @@ export class DevToolsClient implements DevToolsApi {
     const url = new URL(path, baseUrl);
 
     const { token } = await this.identityApi.getCredentials();
-    const response = await fetch(url.toString(), {
+    const response = await this.fetchApi.fetch(url.toString(), {
       headers: token ? { Authorization: `Bearer ${token}` } : {},
     });
 
diff --git a/plugins/devtools/src/plugin.ts b/plugins/devtools/src/plugin.ts
index df2aca3447..8bf61b1fba 100644
--- a/plugins/devtools/src/plugin.ts
+++ b/plugins/devtools/src/plugin.ts
@@ -19,6 +19,7 @@ import {
   createPlugin,
   createRoutableExtension,
   discoveryApiRef,
+  fetchApiRef,
   identityApiRef,
 } from '@backstage/core-plugin-api';
 import { devToolsApiRef, DevToolsClient } from './api';
@@ -31,9 +32,13 @@ export const devToolsPlugin = createPlugin({
   apis: [
     createApiFactory({
       api: devToolsApiRef,
-      deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-      factory: ({ discoveryApi, identityApi }) =>
-        new DevToolsClient({ discoveryApi, identityApi }),
+      deps: {
+        discoveryApi: discoveryApiRef,
+        identityApi: identityApiRef,
+        fetchApi: fetchApiRef,
+      },
+      factory: ({ discoveryApi, identityApi, fetchApi }) =>
+        new DevToolsClient({ discoveryApi, identityApi, fetchApi }),
     }),
   ],
   routes: {
diff --git a/plugins/linguist/src/alpha/plugin.tsx b/plugins/linguist/src/alpha/plugin.tsx
index 36d635740f..fc552de26c 100644
--- a/plugins/linguist/src/alpha/plugin.tsx
+++ b/plugins/linguist/src/alpha/plugin.tsx
@@ -20,6 +20,7 @@ import {
   createApiFactory,
   createPlugin,
   discoveryApiRef,
+  fetchApiRef,
   identityApiRef,
 } from '@backstage/frontend-plugin-api';
 
@@ -40,9 +41,13 @@ export const entityLinguistCard = createEntityCardExtension({
 export const linguistApi = createApiExtension({
   factory: createApiFactory({
     api: linguistApiRef,
-    deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-    factory: ({ discoveryApi, identityApi }) =>
-      new LinguistClient({ discoveryApi, identityApi }),
+    deps: {
+      discoveryApi: discoveryApiRef,
+      identityApi: identityApiRef,
+      fetchApi: fetchApiRef,
+    },
+    factory: ({ discoveryApi, identityApi, fetchApi }) =>
+      new LinguistClient({ discoveryApi, identityApi, fetchApi }),
   }),
 });
 
diff --git a/plugins/linguist/src/api/LinguistClient.ts b/plugins/linguist/src/api/LinguistClient.ts
index 3e327ff21e..0a8e547ccc 100644
--- a/plugins/linguist/src/api/LinguistClient.ts
+++ b/plugins/linguist/src/api/LinguistClient.ts
@@ -14,7 +14,11 @@
  * limitations under the License.
  */
 
-import { DiscoveryApi, IdentityApi } from '@backstage/core-plugin-api';
+import {
+  DiscoveryApi,
+  FetchApi,
+  IdentityApi,
+} from '@backstage/core-plugin-api';
 import { ResponseError } from '@backstage/errors';
 import { Languages } from '@backstage/plugin-linguist-common';
 import { LinguistApi } from './LinguistApi';
@@ -22,13 +26,16 @@ import { LinguistApi } from './LinguistApi';
 export class LinguistClient implements LinguistApi {
   private readonly discoveryApi: DiscoveryApi;
   private readonly identityApi: IdentityApi;
+  private readonly fetchApi: FetchApi;
 
   public constructor(options: {
     discoveryApi: DiscoveryApi;
     identityApi: IdentityApi;
+    fetchApi: FetchApi;
   }) {
     this.discoveryApi = options.discoveryApi;
     this.identityApi = options.identityApi;
+    this.fetchApi = options.fetchApi;
   }
 
   public async getLanguages(entityRef: string): Promise<Languages> {
@@ -46,7 +53,7 @@ export class LinguistClient implements LinguistApi {
     const url = new URL(path, baseUrl);
 
     const { token } = await this.identityApi.getCredentials();
-    const response = await fetch(url.toString(), {
+    const response = await this.fetchApi.fetch(url.toString(), {
       headers: token ? { Authorization: `Bearer ${token}` } : {},
     });
 
diff --git a/plugins/linguist/src/plugin.ts b/plugins/linguist/src/plugin.ts
index 917a13ca9a..e93dc5eaa7 100644
--- a/plugins/linguist/src/plugin.ts
+++ b/plugins/linguist/src/plugin.ts
@@ -19,6 +19,7 @@ import {
   createComponentExtension,
   createPlugin,
   discoveryApiRef,
+  fetchApiRef,
   identityApiRef,
 } from '@backstage/core-plugin-api';
 import { linguistApiRef, LinguistClient } from './api';
@@ -35,9 +36,13 @@ export const linguistPlugin = createPlugin({
   apis: [
     createApiFactory({
       api: linguistApiRef,
-      deps: { discoveryApi: discoveryApiRef, identityApi: identityApiRef },
-      factory: ({ discoveryApi, identityApi }) =>
-        new LinguistClient({ discoveryApi, identityApi }),
+      deps: {
+        discoveryApi: discoveryApiRef,
+        identityApi: identityApiRef,
+        fetchApi: fetchApiRef,
+      },
+      factory: ({ discoveryApi, identityApi, fetchApi }) =>
+        new LinguistClient({ discoveryApi, identityApi, fetchApi }),
     }),
   ],
 });