diff --git a/.changeset/honest-shrimps-clap.md b/.changeset/honest-shrimps-clap.md
new file mode 100644
index 0000000000..12ae623704
--- /dev/null
+++ b/.changeset/honest-shrimps-clap.md
@@ -0,0 +1,9 @@
+---
+'@backstage/catalog-client': minor
+---
+
+**BREAKING**: Removed the explicit `DiscoveryApi` and `FetchApi` export symbols,
+which were unnecessary duplicates from the well known core ones.
+
+The `CATALOG_FILTER_EXISTS` symbol's value has changed. However, this should not
+affect any code in practice.
diff --git a/packages/catalog-client/api-report.md b/packages/catalog-client/api-report.md
index 13b2e6b5f0..a489b32179 100644
--- a/packages/catalog-client/api-report.md
+++ b/packages/catalog-client/api-report.md
@@ -71,7 +71,14 @@ export interface CatalogApi {
 
 // @public
 export class CatalogClient implements CatalogApi {
-  constructor(options: { discoveryApi: DiscoveryApi; fetchApi?: FetchApi });
+  constructor(options: {
+    discoveryApi: {
+      getBaseUrl(pluginId: string): Promise<string>;
+    };
+    fetchApi?: {
+      fetch: typeof fetch;
+    };
+  });
   addLocation(
     { type, target, dryRun, presence }: AddLocationRequest,
     options?: CatalogRequestOptions,
@@ -150,17 +157,7 @@ export type CatalogRequestOptions = {
   token?: string;
 };
 
-// @public
-export type DiscoveryApi = {
-  getBaseUrl(pluginId: string): Promise<string>;
-};
-
 // @public
 export const ENTITY_STATUS_CATALOG_PROCESSING_TYPE =
   'backstage.io/catalog-processing';
-
-// @public
-export type FetchApi = {
-  fetch: typeof fetch;
-};
 ```
diff --git a/packages/catalog-client/src/CatalogClient.ts b/packages/catalog-client/src/CatalogClient.ts
index a446d249c0..009bc9a6cb 100644
--- a/packages/catalog-client/src/CatalogClient.ts
+++ b/packages/catalog-client/src/CatalogClient.ts
@@ -49,7 +49,10 @@ export class CatalogClient implements CatalogApi {
   private readonly discoveryApi: DiscoveryApi;
   private readonly fetchApi: FetchApi;
 
-  constructor(options: { discoveryApi: DiscoveryApi; fetchApi?: FetchApi }) {
+  constructor(options: {
+    discoveryApi: { getBaseUrl(pluginId: string): Promise<string> };
+    fetchApi?: { fetch: typeof fetch };
+  }) {
     this.discoveryApi = options.discoveryApi;
     this.fetchApi = options.fetchApi || { fetch: crossFetch };
   }
diff --git a/packages/catalog-client/src/types/api.ts b/packages/catalog-client/src/types/api.ts
index 0622d654fa..2177c41aa2 100644
--- a/packages/catalog-client/src/types/api.ts
+++ b/packages/catalog-client/src/types/api.ts
@@ -21,7 +21,10 @@ import { Entity, EntityName, Location } from '@backstage/catalog-model';
  *
  * @public
  */
-export const CATALOG_FILTER_EXISTS = Symbol('CATALOG_FILTER_EXISTS');
+export const CATALOG_FILTER_EXISTS = Symbol.for(
+  // Random UUID to ensure no collisions
+  'CATALOG_FILTER_EXISTS_0e15b590c0b343a2bae3e787e84c2111',
+);
 
 /**
  * A request type for retrieving catalog Entities.
diff --git a/packages/catalog-client/src/types/index.ts b/packages/catalog-client/src/types/index.ts
index f3c6fab4e9..cb6166c6d5 100644
--- a/packages/catalog-client/src/types/index.ts
+++ b/packages/catalog-client/src/types/index.ts
@@ -24,7 +24,5 @@ export type {
   CatalogEntityAncestorsRequest,
   CatalogEntityAncestorsResponse,
 } from './api';
-export type { DiscoveryApi } from './discovery';
-export type { FetchApi } from './fetch';
 export { CATALOG_FILTER_EXISTS } from './api';
 export { ENTITY_STATUS_CATALOG_PROCESSING_TYPE } from './status';