diff --git a/spdy/platform/api/spdy_endianness_util.h b/spdy/platform/api/spdy_endianness_util.h
new file mode 100644
index 0000000..e4074d7
--- /dev/null
+++ b/spdy/platform/api/spdy_endianness_util.h
@@ -0,0 +1,44 @@
+// Copyright (c) 2018 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef QUICHE_SPDY_PLATFORM_API_SPDY_ENDIANNESS_UTIL_H_
+#define QUICHE_SPDY_PLATFORM_API_SPDY_ENDIANNESS_UTIL_H_
+
+#include <stdint.h>
+
+#include "net/spdy/platform/impl/spdy_endianness_util_impl.h"
+
+namespace spdy {
+
+// Converts the bytes in |x| from network to host order (endianness), and
+// returns the result.
+inline uint16_t SpdyNetToHost16(uint16_t x) {
+  return SpdyNetToHost16Impl(x);
+}
+
+inline uint32_t SpdyNetToHost32(uint32_t x) {
+  return SpdyNetToHost32Impl(x);
+}
+
+inline uint64_t SpdyNetToHost64(uint64_t x) {
+  return SpdyNetToHost64Impl(x);
+}
+
+// Converts the bytes in |x| from host to network order (endianness), and
+// returns the result.
+inline uint16_t SpdyHostToNet16(uint16_t x) {
+  return SpdyHostToNet16Impl(x);
+}
+
+inline uint32_t SpdyHostToNet32(uint32_t x) {
+  return SpdyHostToNet32Impl(x);
+}
+
+inline uint64_t SpdyHostToNet64(uint64_t x) {
+  return SpdyHostToNet64Impl(x);
+}
+
+}  // namespace spdy
+
+#endif  // QUICHE_SPDY_PLATFORM_API_SPDY_ENDIANNESS_UTIL_H_