diff --git a/api.go b/api.go
index 2b187b7..296e323 100644
--- a/api.go
+++ b/api.go
@@ -76,7 +76,11 @@ func (s *Arseeding) runAPI(port string) {
 		v1.GET("/bundle/fees", s.bundleFees)
 		v1.GET("/bundle/fee/:size/:currency", s.bundleFee)
 		v1.GET("/bundle/orders/:signer", s.getOrders)
-		v1.GET("/:id", s.dataRoute) // get arTx data or bundleItem data
+		v1.GET("/:id", s.dataRoute)                // get arTx data or bundleItem data
+		v1.HEAD("/:id", s.dataRoute)               // get arTx data or bundleItem data
+		v1.GET("/bridge/:id", s.dataBridgeToArio)  // bridge to ario
+		v1.HEAD("/bridge/:id", s.dataBridgeToArio) // bridge to ario
+
 		if s.EnableManifest {
 			v1.POST("/manifest_url/:id", s.setManifestUrl)
 		}
@@ -743,6 +747,18 @@ func (s *Arseeding) bundleFees(c *gin.Context) {
 	c.JSON(http.StatusOK, s.bundlePerFeeMap)
 }
 
+func (s *Arseeding) dataBridgeToArio(c *gin.Context) {
+	txId := c.Param("id")
+	tags, data, err := getArTxOrItemData(txId, s.store)
+	if err != nil {
+		c.JSON(http.StatusNotFound, "Not Found")
+		return
+	}
+	contentLength := len(data)
+	c.Header("x-content-length", strconv.Itoa(contentLength))
+	c.Data(200, fmt.Sprintf("%s; charset=utf-8", getTagValue(tags, schema.ContentType)), data)
+}
+
 func (s *Arseeding) dataRoute(c *gin.Context) {
 	txId := c.Param("id")
 	tags, data, err := getArTxOrItemData(txId, s.store)
diff --git a/middleware.go b/middleware.go
index ef0e808..df80218 100644
--- a/middleware.go
+++ b/middleware.go
@@ -58,7 +58,7 @@ func CORSMiddleware() gin.HandlerFunc {
 		c.Writer.Header().Set("Access-Control-Allow-Origin", "*")
 		c.Writer.Header().Set("Access-Control-Allow-Credentials", "true")
 		c.Writer.Header().Set("Access-Control-Allow-Headers", "Content-Type, Content-Length, Accept-Encoding, X-CSRF-Token, Authorization, accept, origin, Cache-Control, X-Requested-With")
-		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT")
+		c.Writer.Header().Set("Access-Control-Allow-Methods", "POST, OPTIONS, GET, PUT, HEAD")
 
 		if c.Request.Method == "OPTIONS" {
 			c.AbortWithStatus(204)
diff --git a/schema/api.go b/schema/api.go
index b1fcebb..ff985d7 100644
--- a/schema/api.go
+++ b/schema/api.go
@@ -5,9 +5,9 @@ import (
 )
 
 const (
-	AllowMaxItemSize       = 200 * 1024 * 1024 // 200 MB
+	AllowMaxItemSize       = 500 * 1024 * 1024 // 500 MB
 	AllowMaxNativeDataSize = 500 * 1024 * 1024 // 500 MB
-	AllowMaxRespDataSize   = 50 * 1024 * 1024  // 50 MB
+	AllowMaxRespDataSize   = 500 * 1024 * 1024 // 500 MB
 )
 
 type RespOrder struct {