diff --git a/gta4xl.json b/gta4xl.json
new file mode 100644
index 00000000..b96e5538
--- /dev/null
+++ b/gta4xl.json
@@ -0,0 +1,13 @@
+{
+  "response": [
+    {
+      "datetime": "1611400176",
+      "filename": "lineage-18.1-20210123-UNOFFICIAL-gta4xl.zip",
+      "id": "84103ea3dbad0b33f4d837c23112f6e88a2ab1208a830c20410562d2dfad75d9",
+      "romtype": "UNOFFICIAL",
+      "size": "746254446",
+      "url": "https://github.com/Linux4/lineage_OTA/releases/download/20210123/lineage-18.1-20210123-UNOFFICIAL-gta4xl.zip",
+      "version": "18.1"
+    }
+  ]
+}
diff --git a/gta4xlwifi.json b/gta4xlwifi.json
new file mode 100644
index 00000000..b1933762
--- /dev/null
+++ b/gta4xlwifi.json
@@ -0,0 +1,13 @@
+{
+  "response": [
+    {
+      "datetime": "1611396947",
+      "filename": "lineage-18.1-20210123-UNOFFICIAL-gta4xlwifi.zip",
+      "id": "a48e7fc9b25e6d25bac656fe5e20a721a959614d61d72667c38cbb982d393c8e",
+      "romtype": "UNOFFICIAL",
+      "size": "726039326",
+      "url": "https://github.com/Linux4/lineage_OTA/releases/download/20210123/lineage-18.1-20210123-UNOFFICIAL-gta4xlwifi.zip",
+      "version": "18.1"
+    }
+  ]
+}
diff --git a/otainfo.sh b/otainfo.sh
new file mode 100755
index 00000000..fa956278
--- /dev/null
+++ b/otainfo.sh
@@ -0,0 +1,37 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+    echo "Usage: $0 <ota zip>"
+    exit 1
+fi
+
+ZIP="$1"
+
+METADATA=$(unzip -p "$ZIP" META-INF/com/android/metadata)
+
+DEVICE=$(echo "$METADATA" | grep pre-device | cut -f2 -d '=' | cut -f1 -d ',')
+SDK_LEVEL=$(echo "$METADATA" | grep post-sdk-level | cut -f2 -d '=')
+TIMESTAMP=$(echo "$METADATA" | grep post-timestamp | cut -f2 -d '=')
+
+FILENAME=$(basename $ZIP)
+DATE=$(echo $FILENAME | cut -f3 -d '-')
+ID=$(echo ${TIMESTAMP}${DEVICE}${SDK_LEVEL} | sha256sum | cut -f 1 -d ' ')
+SIZE=$(du -b $ZIP | cut -f1 -d '	')
+TYPE=$(echo $FILENAME | cut -f4 -d '-')
+VERSION=$(echo $FILENAME | cut -f2 -d '-')
+
+URL="https://github.com/Linux4/lineage_OTA/releases/download/${DATE}/${FILENAME}"
+
+echo "{"
+echo "  \"response\": ["
+echo "    {"
+echo "      \"datetime\": \"$TIMESTAMP\","
+echo "      \"filename\": \"$FILENAME\","
+echo "      \"id\": \"$ID\","
+echo "      \"romtype\": \"$TYPE\","
+echo "      \"size\": \"$SIZE\","
+echo "      \"url\": \"$URL\","
+echo "      \"version\": \"$VERSION\""
+echo "    }"
+echo "  ]"
+echo "}"