diff --git a/sdks/python/pmxt/models.py b/sdks/python/pmxt/models.py
index 223413ca..31046e6b 100644
--- a/sdks/python/pmxt/models.py
+++ b/sdks/python/pmxt/models.py
@@ -746,6 +746,8 @@ class MarketFetchParams(TypedDict, total=False):
     market_id: str
     outcome_id: str
     event_id: str
+    source_exchange: str
+    exchange: str
     category: str
     tags: List[str]
     filter: MarketFilterCriteria
@@ -764,6 +766,8 @@ class EventFetchParams(TypedDict, total=False):
     search_in: Literal["title", "description", "both"]
     event_id: str
     slug: str
+    source_exchange: str
+    exchange: str
     series: str
     category: str
     tags: List[str]
diff --git a/sdks/typescript/pmxt/models.ts b/sdks/typescript/pmxt/models.ts
index 2e833193..43510bce 100644
--- a/sdks/typescript/pmxt/models.ts
+++ b/sdks/typescript/pmxt/models.ts
@@ -450,6 +450,12 @@ export interface MarketFilterParams {
     /** Find markets belonging to an event */
     eventId?: string;
 
+    /** Filter by source venue (e.g. 'polymarket', 'kalshi', 'myriad'). */
+    sourceExchange?: string;
+
+    /** Alias for `sourceExchange`. */
+    exchange?: string;
+
     /** Pagination page (used by Limitless) */
     page?: number;
 
@@ -497,6 +503,12 @@ export interface EventFetchParams {
     /** Lookup by event slug */
     slug?: string;
 
+    /** Filter by source venue (e.g. 'polymarket', 'kalshi', 'myriad'). */
+    sourceExchange?: string;
+
+    /** Alias for `sourceExchange`. */
+    exchange?: string;
+
     /** Filter events by their parent series. Accepts the venue-native series id / ticker / slug. */
     series?: string;