diff --git a/.codex/config.toml b/.codex/config.toml
index 8b77b156..ff3abf3d 100644
--- a/.codex/config.toml
+++ b/.codex/config.toml
@@ -2,10 +2,11 @@
 args = [
     "-y",
     "@upstash/context7-mcp",
-    "--api-key",
-    "ctx7sk-119cd4ab-8983-4229-8702-e84c59c34fc9",
 ]
 command = "npx"
+# Schlüssel über CONTEXT7_API_KEY aus der Umgebung, nicht im Repo.
+env_vars = ["CONTEXT7_API_KEY"]
+
 [mcp_servers.playwright]
 url = "https://playwright.test/mcp"
 
diff --git a/.mcp.json b/.mcp.json
index 26f3cf38..0455087b 100644
--- a/.mcp.json
+++ b/.mcp.json
@@ -11,9 +11,7 @@
             "command": "npx",
             "args": [
                 "-y",
-                "@upstash/context7-mcp",
-                "--api-key",
-                "ctx7sk-119cd4ab-8983-4229-8702-e84c59c34fc9"
+                "@upstash/context7-mcp"
             ]
         },
         "sequential-thinking": {
@@ -27,4 +25,4 @@
             "url": "https://playwright.test/mcp"
         }
     }
-}
\ No newline at end of file
+}