src/exchange_data_manager/api/rest.py

@@ -283,7 +283,7 @@ async def get_candles(
     timeframe: str = Query(..., description="Candle timeframe (e.g., 5m, 1h)"),
     start: Optional[int] = Query(None, description="Start timestamp (Unix seconds)"),
     end: Optional[int] = Query(None, description="End timestamp (Unix seconds)"),
-    limit: Optional[int] = Query(None, description="Maximum candles to return (omit for all)", le=10000),
+    limit: Optional[int] = Query(100, description="Maximum candles to return", le=1000),
     session_id: Optional[str] = Query(
         None,
         description="Optional session ID for per-session exchange credentials",

src/exchange_data_manager/cache/manager.py

@@ -189,20 +189,6 @@ class CacheManager:
             source = "exchange" if exchange_candles else "memory"
             return result, source
 
-        # Step 2b: Handle SINCE mode (start provided, no end)
-        # Gaps with end=None need to be fetched from exchange directly
-        import time as time_module
-        now = int(time_module.time())
-        normalized_gaps = []
-        for gap_start, gap_end in gaps_to_fill:
-            if gap_start is not None and gap_end is None:
-                # SINCE mode: fetch from start to now
-                normalized_gaps.append((gap_start, now))
-            elif gap_start is not None and gap_end is not None:
-                normalized_gaps.append((gap_start, gap_end))
-            # Skip gaps where start is None (shouldn't happen with proper request)
-        gaps_to_fill = normalized_gaps if normalized_gaps else gaps_to_fill
-
         db_hit = False
         exchange_hit = False