Create wikidata.py

mcp/wikidata.py

@@ -0,0 +1,23 @@
+# mcp/wikidata.py
+"""
+Minimal Wikidata entity lookup for biomedical concepts.
+"""
+
+import httpx
+from typing import Dict, Optional
+
+API = "https://www.wikidata.org/w/api.php"
+
+async def simple_search(term: str) -> Optional[Dict]:
+    params = {
+        "action": "wbsearchentities",
+        "search": term,
+        "language": "en",
+        "format": "json",
+        "limit": 1
+    }
+    async with httpx.AsyncClient(timeout=15) as client:
+        r = await client.get(API, params=params)
+        r.raise_for_status()
+        data = r.json()["search"]
+        return data[0] if data else None