diff --git a/sdks/typescript/pmxt/models.ts b/sdks/typescript/pmxt/models.ts
index d5b8c97f..ec400c0d 100644
--- a/sdks/typescript/pmxt/models.ts
+++ b/sdks/typescript/pmxt/models.ts
@@ -983,7 +983,10 @@ export interface EventMatchResult extends Readonly<UnifiedEvent> {
     marketMatches: MatchResult[];
 }
 
-export type MatchedClusterSort = 'volume' | 'confidence';
+/** Canonical cluster sort literal shared with the Python SDK. */
+export type ClusterSortOption = 'volume' | 'confidence';
+
+export type MatchedClusterSort = ClusterSortOption;
 
 /** Shared filters for matched market/event cluster discovery. */
 export interface MatchedClusterFilterParams {
diff --git a/sdks/typescript/tests/public-exports.test.ts b/sdks/typescript/tests/public-exports.test.ts
index acc17a0f..3cca683c 100644
--- a/sdks/typescript/tests/public-exports.test.ts
+++ b/sdks/typescript/tests/public-exports.test.ts
@@ -1,5 +1,8 @@
 import * as pmxt from '../index';
 import { FeedClient as DirectFeedClient } from '../pmxt/feed-client';
+import type { ClusterSortOption, MatchedClusterSort } from '../index';
+
+const acceptsClusterSortOption = (sort: ClusterSortOption): MatchedClusterSort => sort;
 
 describe('public exports', () => {
   it('exports FeedClient as a top-level named export', () => {
@@ -16,4 +19,10 @@ describe('public exports', () => {
     const client = new pmxt.FeedClient('chainlink');
     expect(client).toBeInstanceOf(DirectFeedClient);
   });
+
+  it('exports ClusterSortOption as a public type alias matching MatchedClusterSort', () => {
+    const byVolume = acceptsClusterSortOption('volume');
+    const byConfidence = acceptsClusterSortOption('confidence');
+    expect([byVolume, byConfidence]).toEqual(['volume', 'confidence']);
+  });
 });