Update mcp/arxiv.py

mcp/arxiv.py

@@ -7,17 +7,17 @@ ARXIV_BASE = "http://export.arxiv.org/api/query?search_query="
 
 async def fetch_arxiv(query: str, max_results: int = 5):
     """Fetch latest arXiv papers for the query."""
-    encoded_query = quote_plus(query)  # Ensures spaces become +, etc.
+    encoded_query = quote_plus(query)
     search_url = f"{ARXIV_BASE}{encoded_query}&max_results={max_results}"
     feed = feedparser.parse(search_url)
     results = []
     for entry in feed.entries:
         results.append({
             "title": entry.title,
-            "authors": ", ".join([a.name for a in entry.authors]),
+            "authors": ", ".join([a.name for a in entry.authors]) if hasattr(entry, 'authors') else "",
             "summary": entry.summary,
             "link": entry.link,
-            "published": entry.published,
+            "published": entry.get("published", ""),  # <--- THIS FIXES THE ERROR!
             "source": "arXiv"
         })
     return results