diff --git a/api/MathMLElement.json b/api/MathMLElement.json
new file mode 100644
index 00000000000000..cc51c14cd364b3
--- /dev/null
+++ b/api/MathMLElement.json
@@ -0,0 +1,52 @@
+{
+  "api": {
+    "MathMLElement": {
+      "__compat": {
+        "mdn_url": "https://developer.mozilla.org/docs/Web/API/MathMLElement",
+        "support": {
+          "chrome": {
+            "version_added": false
+          },
+          "chrome_android": {
+            "version_added": false
+          },
+          "edge": {
+            "version_added": false
+          },
+          "firefox": {
+            "version_added": "71"
+          },
+          "firefox_android": {
+            "version_added": false
+          },
+          "ie": {
+            "version_added": false
+          },
+          "opera": {
+            "version_added": false
+          },
+          "opera_android": {
+            "version_added": false
+          },
+          "safari": {
+            "version_added": false
+          },
+          "safari_ios": {
+            "version_added": false
+          },
+          "samsunginternet_android": {
+            "version_added": false
+          },
+          "webview_android": {
+            "version_added": false
+          }
+        },
+        "status": {
+          "experimental": true,
+          "standard_track": true,
+          "deprecated": false
+        }
+      }
+    }
+  }
+}