diff --git a/.codex/config.toml b/.codex/config.toml
new file mode 100644
index 00000000..d2095dcb
--- /dev/null
+++ b/.codex/config.toml
@@ -0,0 +1,6 @@
+# Set MCPX_LUNAR_API_KEY in the local environment. Do not commit the key.
+[mcp_servers.mcpx]
+url = "https://garza-mcp.exe.xyz/mcp"
+
+[mcp_servers.mcpx.env_http_headers]
+x-lunar-api-key = "MCPX_LUNAR_API_KEY"
diff --git a/configs/mcp/mcpx.mcp.example.json b/configs/mcp/mcpx.mcp.example.json
new file mode 100644
index 00000000..abe9b418
--- /dev/null
+++ b/configs/mcp/mcpx.mcp.example.json
@@ -0,0 +1,10 @@
+{
+  "mcpServers": {
+    "mcpx": {
+      "url": "https://garza-mcp.exe.xyz/mcp",
+      "headers": {
+        "x-lunar-api-key": "${MCPX_LUNAR_API_KEY}"
+      }
+    }
+  }
+}