diff --git a/scripts/create-one-time-access-token.sh b/scripts/create-one-time-access-token.sh
index 0eb13e8..30a4f73 100644
--- a/scripts/create-one-time-access-token.sh
+++ b/scripts/create-one-time-access-token.sh
@@ -1,5 +1,6 @@
-# Default database path
 DB_PATH="./backend/data/pocket-id.db"
+DB_PROVIDER="${DB_PROVIDER:=sqlite}"
+USER_IDENTIFIER="$1"
 
 # Parse command-line arguments for the -d flag (database path)
 while getopts ":d:" opt; do
@@ -19,12 +20,12 @@ shift $((OPTIND - 1))
 # Ensure username or email is provided as a parameter
 if [ -z "$1" ]; then
     echo "Usage: $0 [-d <database_path>] <username or email>"
-    echo "  -d   Specify the database path (optional, defaults to ./backend/data/pocket-id.db)"
+    if [ "$DB_PROVIDER" == "sqlite" ]; then
+        echo "-d <database_path> (optional): Path to the SQLite database file. Default: $DB_PATH"
+    fi
     exit 1
 fi
 
-USER_IDENTIFIER="$1"
-
 # Check and try to install the required commands
 check_and_install() {
     local cmd=$1
@@ -41,8 +42,12 @@ check_and_install() {
     fi
 }
 
-check_and_install sqlite3 sqlite
 check_and_install uuidgen uuidgen
+if [ "$DB_PROVIDER" == "postgres" ]; then
+    check_and_install psql postgresql-client
+elif [ "$DB_PROVIDER" == "sqlite" ]; then
+    check_and_install sqlite3 sqlite
+fi
 
 # Generate a 16-character alphanumeric secret token
 SECRET_TOKEN=$(LC_ALL=C tr -dc 'A-Za-z0-9' </dev/urandom | head -c 16)
@@ -51,21 +56,47 @@ SECRET_TOKEN=$(LC_ALL=C tr -dc 'A-Za-z0-9' </dev/urandom | head -c 16)
 CREATED_AT=$(date +%s)
 EXPIRES_AT=$((CREATED_AT + 3600))
 
-# Retrieve user_id from the users table based on username or email
-USER_ID=$(sqlite3 "$DB_PATH" "SELECT id FROM users WHERE username='$USER_IDENTIFIER' OR email='$USER_IDENTIFIER';")
+# Retrieve user_id based on username or email and insert token
+if [ "$DB_PROVIDER" == "postgres" ]; then
+    if [ -z "$POSTGRES_CONNECTION_STRING" ]; then
+        echo "Error: POSTGRES_CONNECTION_STRING must be set when using PostgreSQL."
+        exit 1
+    fi
 
-# Check if user exists
-if [ -z "$USER_ID" ]; then
-    echo "User not found for username/email: $USER_IDENTIFIER"
-    exit 1
-fi
+    # Retrieve user_id
+    USER_ID=$(psql "$POSTGRES_CONNECTION_STRING" -Atc "SELECT id FROM users WHERE username='$USER_IDENTIFIER' OR email='$USER_IDENTIFIER';")
 
-# Insert the one-time token into the one_time_access_tokens table
-sqlite3 "$DB_PATH" <<EOF
+    if [ -z "$USER_ID" ]; then
+        echo "User not found for username/email: $USER_IDENTIFIER"
+        exit 1
+    fi
+
+    # Insert the one-time token
+    psql "$POSTGRES_CONNECTION_STRING" <<EOF
+INSERT INTO one_time_access_tokens (id, created_at, token, expires_at, user_id)
+VALUES ('$(uuidgen)', to_timestamp('$CREATED_AT'), '$SECRET_TOKEN', to_timestamp('$EXPIRES_AT'), '$USER_ID');
+EOF
+
+elif [ "$DB_PROVIDER" == "sqlite" ]; then
+    # Retrieve user_id
+    USER_ID=$(sqlite3 "$DB_PATH" "SELECT id FROM users WHERE username='$USER_IDENTIFIER' OR email='$USER_IDENTIFIER';")
+
+    if [ -z "$USER_ID" ]; then
+        echo "User not found for username/email: $USER_IDENTIFIER"
+        exit 1
+    fi
+
+    # Insert the one-time token
+    sqlite3 "$DB_PATH" <<EOF
 INSERT INTO one_time_access_tokens (id, created_at, token, expires_at, user_id)
 VALUES ('$(uuidgen)', '$CREATED_AT', '$SECRET_TOKEN', '$EXPIRES_AT', '$USER_ID');
 EOF
+else
+    echo "Error: Invalid DB_PROVIDER. Must be 'postgres' or 'sqlite'."
+    exit 1
+fi
 
+echo "================================================="
 if [ $? -eq 0 ]; then
     echo "A one-time access token valid for 1 hour has been created for \"$USER_IDENTIFIER\"."
     echo "Use the following URL to sign in once: ${PUBLIC_APP_URL:=https://<your-pocket-id-domain>}/login/$SECRET_TOKEN"
@@ -73,3 +104,4 @@ else
     echo "Error creating access token."
     exit 1
 fi
+echo "================================================="