diff --git a/src/common/serialization/clap/host.cpp b/src/common/serialization/clap/host.cpp
index 418eac02..0fa7a200 100644
--- a/src/common/serialization/clap/host.cpp
+++ b/src/common/serialization/clap/host.cpp
@@ -17,6 +17,7 @@
 #include "host.h"
 
 #include <clap/ext/audio-ports.h>
+#include <clap/ext/gui.h>
 #include <clap/ext/latency.h>
 #include <clap/ext/note-ports.h>
 #include <clap/ext/params.h>
@@ -33,9 +34,10 @@ Host::Host(const clap_host_t& original)
       url(original.url ? std::optional(original.url) : std::nullopt),
       version((assert(original.version), original.version)) {}
 
-std::array<std::pair<bool, const char*>, 6> SupportedHostExtensions::list()
+std::array<std::pair<bool, const char*>, 7> SupportedHostExtensions::list()
     const noexcept {
     return {std::pair(supports_audio_ports, CLAP_EXT_AUDIO_PORTS),
+            std::pair(supports_gui, CLAP_EXT_GUI),
             std::pair(supports_latency, CLAP_EXT_LATENCY),
             std::pair(supports_note_ports, CLAP_EXT_NOTE_PORTS),
             std::pair(supports_params, CLAP_EXT_PARAMS),
diff --git a/src/common/serialization/clap/host.h b/src/common/serialization/clap/host.h
index 9c9b08ed..033ff299 100644
--- a/src/common/serialization/clap/host.h
+++ b/src/common/serialization/clap/host.h
@@ -82,6 +82,7 @@ struct Host {
 struct SupportedHostExtensions {
     // Don't forget to add new extensions to below method
     bool supports_audio_ports = false;
+    bool supports_gui = false;
     bool supports_latency = false;
     bool supports_note_ports = false;
     bool supports_params = false;
@@ -92,11 +93,12 @@ struct SupportedHostExtensions {
      * Get a list of `<bool, extension_name>` tuples for the supported
      * extensions. Used during logging.
      */
-    std::array<std::pair<bool, const char*>, 6> list() const noexcept;
+    std::array<std::pair<bool, const char*>, 7> list() const noexcept;
 
     template <typename S>
     void serialize(S& s) {
         s.value1b(supports_audio_ports);
+        s.value1b(supports_gui);
         s.value1b(supports_latency);
         s.value1b(supports_note_ports);
         s.value1b(supports_params);
diff --git a/src/plugin/bridges/clap-impls/plugin-proxy.cpp b/src/plugin/bridges/clap-impls/plugin-proxy.cpp
index 34760f49..5285bf8b 100644
--- a/src/plugin/bridges/clap-impls/plugin-proxy.cpp
+++ b/src/plugin/bridges/clap-impls/plugin-proxy.cpp
@@ -21,6 +21,8 @@
 ClapHostExtensions::ClapHostExtensions(const clap_host& host) noexcept
     : audio_ports(static_cast<const clap_host_audio_ports_t*>(
           host.get_extension(&host, CLAP_EXT_AUDIO_PORTS))),
+      gui(static_cast<const clap_host_gui_t*>(
+          host.get_extension(&host, CLAP_EXT_GUI))),
       latency(static_cast<const clap_host_latency_t*>(
           host.get_extension(&host, CLAP_EXT_LATENCY))),
       note_ports(static_cast<const clap_host_note_ports_t*>(
@@ -38,6 +40,7 @@ clap::host::SupportedHostExtensions ClapHostExtensions::supported()
     const noexcept {
     return clap::host::SupportedHostExtensions{
         .supports_audio_ports = audio_ports != nullptr,
+        .supports_gui = gui != nullptr,
         .supports_latency = latency != nullptr,
         .supports_note_ports = note_ports != nullptr,
         .supports_params = params != nullptr,
diff --git a/src/plugin/bridges/clap-impls/plugin-proxy.h b/src/plugin/bridges/clap-impls/plugin-proxy.h
index 99503e86..b68ffd01 100644
--- a/src/plugin/bridges/clap-impls/plugin-proxy.h
+++ b/src/plugin/bridges/clap-impls/plugin-proxy.h
@@ -21,6 +21,7 @@
 #include <vector>
 
 #include <clap/ext/audio-ports.h>
+#include <clap/ext/gui.h>
 #include <clap/ext/latency.h>
 #include <clap/ext/note-ports.h>
 #include <clap/ext/params.h>
@@ -62,6 +63,7 @@ struct ClapHostExtensions {
     clap::host::SupportedHostExtensions supported() const noexcept;
 
     const clap_host_audio_ports_t* audio_ports = nullptr;
+    const clap_host_gui_t* gui = nullptr;
     const clap_host_latency_t* latency = nullptr;
     const clap_host_note_ports_t* note_ports = nullptr;
     const clap_host_params_t* params = nullptr;
diff --git a/src/plugin/bridges/clap.cpp b/src/plugin/bridges/clap.cpp
index 9aaa97b0..7a524608 100644
--- a/src/plugin/bridges/clap.cpp
+++ b/src/plugin/bridges/clap.cpp
@@ -115,6 +115,55 @@ ClapPluginBridge::ClapPluginBridge(const ghc::filesystem::path& plugin_path)
 
                     return Ack{};
                 },
+                [&](const clap::ext::gui::host::ResizeHintsChanged& request)
+                    -> clap::ext::gui::host::ResizeHintsChanged::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    // This callback is thread-safe
+                    plugin_proxy.host_extensions_.gui->resize_hints_changed(
+                        plugin_proxy.host_);
+
+                    return Ack{};
+                },
+                [&](const clap::ext::gui::host::RequestResize& request)
+                    -> clap::ext::gui::host::RequestResize::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    // This callback is thread-safe
+                    return plugin_proxy.host_extensions_.gui->request_resize(
+                        plugin_proxy.host_, request.width, request.height);
+                },
+                [&](const clap::ext::gui::host::RequestShow& request)
+                    -> clap::ext::gui::host::RequestShow::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    // This callback is thread-safe
+                    return plugin_proxy.host_extensions_.gui->request_show(
+                        plugin_proxy.host_);
+                },
+                [&](const clap::ext::gui::host::RequestHide& request)
+                    -> clap::ext::gui::host::RequestHide::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    // This callback is thread-safe
+                    return plugin_proxy.host_extensions_.gui->request_hide(
+                        plugin_proxy.host_);
+                },
+                [&](const clap::ext::gui::host::Closed& request)
+                    -> clap::ext::gui::host::Closed::Response {
+                    const auto& [plugin_proxy, _] =
+                        get_proxy(request.owner_instance_id);
+
+                    // This callback is thread-safe
+                    plugin_proxy.host_extensions_.gui->closed(
+                        plugin_proxy.host_, request.was_destroyed);
+
+                    return Ack{};
+                },
                 [&](const clap::ext::latency::host::Changed& request)
                     -> clap::ext::latency::host::Changed::Response {
                     const auto& [plugin_proxy, _] =