Create gene_hub.py

mcp/gene_hub.py

@@ -0,0 +1,18 @@
+"""Unified gene resolver: MyGene ➜ Ensembl ➜ OpenTargets"""
+from mcp.mygene        import fetch_gene_info     # MyGene.info – 500 QPS tier :contentReference[oaicite:3]{index=3}
+from mcp.ensembl       import fetch_ensembl       # Ensembl REST xrefs endpoint :contentReference[oaicite:4]{index=4}
+from mcp.opentargets   import fetch_ot            # OT GraphQL v4 API :contentReference[oaicite:5]{index=5}
+
+async def resolve_gene(symbol: str) -> dict:
+    """
+    Return the first non-empty gene record.
+    The order is chosen for speed & richness.
+    """
+    for fn in (fetch_gene_info, fetch_ensembl, fetch_ot):
+        try:
+            data = await fn(symbol)
+            if data:           # truthy dict / list
+                return data
+        except Exception:
+            pass               # mute network hiccups
+    return {}