diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5bf64277..6cfa79c7 100755
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,7 @@
 # CMakeLists in this exact order for cmake to work correctly
 cmake_minimum_required(VERSION 3.16)
 
-set(PROJECT_VER "1.6.3")
+set(PROJECT_VER "1.6.4")
 
 # Add this line to disable the specific warning
 add_compile_options(-Wno-missing-field-initializers)
diff --git a/main/boards/common/board.cc b/main/boards/common/board.cc
index e607960f..d8c5e61a 100644
--- a/main/boards/common/board.cc
+++ b/main/boards/common/board.cc
@@ -57,6 +57,10 @@ Display* Board::GetDisplay() {
     return &display;
 }
 
+Camera* Board::GetCamera() {
+    return nullptr;
+}
+
 Led* Board::GetLed() {
     static NoLed led;
     return &led;
diff --git a/main/boards/common/board.h b/main/boards/common/board.h
index 2daabec1..a637d018 100644
--- a/main/boards/common/board.h
+++ b/main/boards/common/board.h
@@ -9,6 +9,7 @@
 
 #include "led/led.h"
 #include "backlight.h"
+#include "camera.h"
 
 void* create_board();
 class AudioCodec;
@@ -39,6 +40,7 @@ public:
     virtual AudioCodec* GetAudioCodec() = 0;
     virtual bool GetTemperature(float& esp32temp);
     virtual Display* GetDisplay();
+    virtual Camera* GetCamera();
     virtual Http* CreateHttp() = 0;
     virtual WebSocket* CreateWebSocket() = 0;
     virtual Mqtt* CreateMqtt() = 0;
diff --git a/main/boards/common/camera.h b/main/boards/common/camera.h
new file mode 100644
index 00000000..79e0f673
--- /dev/null
+++ b/main/boards/common/camera.h
@@ -0,0 +1,13 @@
+#ifndef CAMERA_H
+#define CAMERA_H
+
+#include <string>
+
+class Camera {
+public:
+    virtual void SetExplainUrl(const std::string& url, const std::string& token) = 0;
+    virtual bool Capture() = 0;
+    virtual std::string Explain(const std::string& question) = 0;
+};
+
+#endif // CAMERA_H
diff --git a/main/boards/common/esp32_camera.cc b/main/boards/common/esp32_camera.cc
new file mode 100644
index 00000000..245577e7
--- /dev/null
+++ b/main/boards/common/esp32_camera.cc
@@ -0,0 +1,212 @@
+#include "esp32_camera.h"
+#include "mcp_server.h"
+#include "display.h"
+#include "board.h"
+
+#include <esp_log.h>
+#include <esp_heap_caps.h>
+#include <img_converters.h>
+#include <cstring>
+
+#define TAG "Esp32Camera"
+
+Esp32Camera::Esp32Camera(const camera_config_t& config) {
+    jpeg_queue_ = xQueueCreate(10, sizeof(JpegChunk));
+    if (jpeg_queue_ == nullptr) {
+        ESP_LOGE(TAG, "Failed to create JPEG queue");
+        return;
+    }
+
+    // camera init
+    esp_err_t err = esp_camera_init(&config); // 配置上面定义的参数
+    if (err != ESP_OK) {
+        ESP_LOGE(TAG, "Camera init failed with error 0x%x", err);
+        return;
+    }
+
+    sensor_t *s = esp_camera_sensor_get(); // 获取摄像头型号
+    if (s->id.PID == GC0308_PID) {
+        s->set_hmirror(s, 0);  // 这里控制摄像头镜像 写1镜像 写0不镜像
+    }
+
+    // 初始化预览图片的内存
+    memset(&preview_image_, 0, sizeof(preview_image_));
+    preview_image_.header.magic = LV_IMAGE_HEADER_MAGIC;
+    preview_image_.header.cf = LV_COLOR_FORMAT_RGB565;
+    preview_image_.header.flags = LV_IMAGE_FLAGS_ALLOCATED | LV_IMAGE_FLAGS_MODIFIABLE;
+
+    if (config.frame_size == FRAMESIZE_VGA) {
+        preview_image_.header.w = 640;
+        preview_image_.header.h = 480;
+    } else if (config.frame_size == FRAMESIZE_QVGA) {
+        preview_image_.header.w = 320;
+        preview_image_.header.h = 240;
+    }
+    preview_image_.header.stride = preview_image_.header.w * 2;
+    preview_image_.data_size = preview_image_.header.w * preview_image_.header.h * 2;
+    preview_image_.data = (uint8_t*)heap_caps_malloc(preview_image_.data_size, MALLOC_CAP_SPIRAM);
+    if (preview_image_.data == nullptr) {
+        ESP_LOGE(TAG, "Failed to allocate memory for preview image");
+        return;
+    }
+}
+
+Esp32Camera::~Esp32Camera() {
+    if (fb_) {
+        esp_camera_fb_return(fb_);
+        fb_ = nullptr;
+    }
+    if (preview_image_.data) {
+        heap_caps_free((void*)preview_image_.data);
+        preview_image_.data = nullptr;
+    }
+    esp_camera_deinit();
+
+    if (jpeg_queue_ != nullptr) {
+        vQueueDelete(jpeg_queue_);
+        jpeg_queue_ = nullptr;
+    }
+}
+
+void Esp32Camera::SetExplainUrl(const std::string& url, const std::string& token) {
+    explain_url_ = url;
+    explain_token_ = token;
+}
+
+bool Esp32Camera::Capture() {
+    if (preview_thread_.joinable()) {
+        preview_thread_.join();
+    }
+    if (encoder_thread_.joinable()) {
+        encoder_thread_.join();
+    }
+
+    int frames_to_get = 2;
+    // Try to get a stable frame
+    for (int i = 0; i < frames_to_get; i++) {
+        if (fb_ != nullptr) {
+            esp_camera_fb_return(fb_);
+        }
+        fb_ = esp_camera_fb_get();
+        if (fb_ == nullptr) {
+            ESP_LOGE(TAG, "Camera capture failed");
+            return false;
+        }
+    }
+
+    preview_thread_ = std::thread([this]() {
+        // 显示预览图片
+        auto display = Board::GetInstance().GetDisplay();
+        if (display != nullptr) {
+            auto src = (uint16_t*)fb_->buf;
+            auto dst = (uint16_t*)preview_image_.data;
+            size_t pixel_count = fb_->len / 2;
+            for (size_t i = 0; i < pixel_count; i++) {
+                // 交换每个16位字内的字节
+                dst[i] = __builtin_bswap16(src[i]);
+            }
+            display->SetPreviewImage(&preview_image_);
+        }
+    });
+    return true;
+}
+
+std::string Esp32Camera::Explain(const std::string& question) {
+    if (explain_url_.empty() || explain_token_.empty()) {
+        return "{\"success\": false, \"message\": \"Image explain URL or token is not set\"}";
+    }
+
+    // We spawn a thread to encode the image to JPEG
+    encoder_thread_ = std::thread([this]() {
+        frame2jpg_cb(fb_, 80, [](void* arg, size_t index, const void* data, size_t len) -> unsigned int {
+            auto jpeg_queue = (QueueHandle_t)arg;
+            JpegChunk chunk = {
+                .data = (uint8_t*)heap_caps_malloc(len, MALLOC_CAP_SPIRAM),
+                .len = len
+            };
+            memcpy(chunk.data, data, len);
+            xQueueSend(jpeg_queue, &chunk, portMAX_DELAY);
+            return len;
+        }, jpeg_queue_);
+    });
+
+    auto http = Board::GetInstance().CreateHttp();
+    // 构造multipart/form-data请求体
+    std::string boundary = "----ESP32_CAMERA_BOUNDARY";
+    
+    // 构造question字段
+    std::string question_field;
+    question_field += "--" + boundary + "\r\n";
+    question_field += "Content-Disposition: form-data; name=\"question\"\r\n";
+    question_field += "\r\n";
+    question_field += question + "\r\n";
+    
+    // 构造文件字段头部
+    std::string file_header;
+    file_header += "--" + boundary + "\r\n";
+    file_header += "Content-Disposition: form-data; name=\"file\"; filename=\"camera.jpg\"\r\n";
+    file_header += "Content-Type: image/jpeg\r\n";
+    file_header += "\r\n";
+    
+    // 构造尾部
+    std::string multipart_footer;
+    multipart_footer += "\r\n--" + boundary + "--\r\n";
+
+    // 配置HTTP客户端，使用分块传输编码
+    http->SetHeader("Authorization", "Bearer " + explain_token_);
+    http->SetHeader("Content-Type", "multipart/form-data; boundary=" + boundary);
+    http->SetHeader("Transfer-Encoding", "chunked");
+    if (!http->Open("POST", explain_url_)) {
+        ESP_LOGE(TAG, "Failed to connect to explain URL");
+        // Clear the queue
+        encoder_thread_.join();
+        JpegChunk chunk;
+        while (xQueueReceive(jpeg_queue_, &chunk, portMAX_DELAY) == pdPASS) {
+            if (chunk.data != nullptr) {
+                heap_caps_free(chunk.data);
+            } else {
+                break;
+            }
+        }
+        return "{\"success\": false, \"message\": \"Failed to connect to explain URL\"}";
+    }
+    
+    // 第一块：question字段
+    http->Write(question_field.c_str(), question_field.size());
+    
+    // 第二块：文件字段头部
+    http->Write(file_header.c_str(), file_header.size());
+    
+    // 第三块：JPEG数据
+    size_t total_sent = 0;
+    while (true) {
+        JpegChunk chunk;
+        if (xQueueReceive(jpeg_queue_, &chunk, portMAX_DELAY) != pdPASS) {
+            ESP_LOGE(TAG, "Failed to receive JPEG chunk");
+            break;
+        }
+        if (chunk.data == nullptr) {
+            break; // The last chunk
+        }
+        http->Write((const char*)chunk.data, chunk.len);
+        total_sent += chunk.len;
+        heap_caps_free(chunk.data);
+    }
+
+    // 第四块：multipart尾部
+    http->Write(multipart_footer.c_str(), multipart_footer.size());
+    
+    // 结束块
+    http->Write("", 0);
+
+    if (http->GetStatusCode() != 200) {
+        ESP_LOGE(TAG, "Failed to upload photo, status code: %d", http->GetStatusCode());
+        return "{\"success\": false, \"message\": \"Failed to upload photo\"}";
+    }
+
+    std::string result = http->ReadAll();
+    http->Close();
+
+    ESP_LOGI(TAG, "Explain image size=%dx%d, compressed size=%d, question=%s\n%s", fb_->width, fb_->height, total_sent, question.c_str(), result.c_str());
+    return result;
+}
diff --git a/main/boards/common/esp32_camera.h b/main/boards/common/esp32_camera.h
new file mode 100644
index 00000000..10c3955a
--- /dev/null
+++ b/main/boards/common/esp32_camera.h
@@ -0,0 +1,38 @@
+#ifndef ESP32_CAMERA_H
+#define ESP32_CAMERA_H
+
+#include <esp_camera.h>
+#include <lvgl.h>
+#include <thread>
+#include <memory>
+
+#include <freertos/FreeRTOS.h>
+#include <freertos/queue.h>
+
+#include "camera.h"
+
+struct JpegChunk {
+    uint8_t* data;
+    size_t len;
+};
+
+class Esp32Camera : public Camera {
+private:
+    camera_fb_t* fb_ = nullptr;
+    lv_img_dsc_t preview_image_;
+    std::string explain_url_;
+    std::string explain_token_;
+    std::thread preview_thread_;
+    std::thread encoder_thread_;
+
+    QueueHandle_t jpeg_queue_ = nullptr;
+public:
+    Esp32Camera(const camera_config_t& config);
+    ~Esp32Camera();
+
+    virtual void SetExplainUrl(const std::string& url, const std::string& token);
+    virtual bool Capture();
+    virtual std::string Explain(const std::string& question);
+};
+
+#endif // ESP32_CAMERA_H
\ No newline at end of file
diff --git a/main/boards/lichuang-dev/config.h b/main/boards/lichuang-dev/config.h
index bb0544df..32c12a08 100644
--- a/main/boards/lichuang-dev/config.h
+++ b/main/boards/lichuang-dev/config.h
@@ -37,5 +37,26 @@
 #define DISPLAY_BACKLIGHT_PIN GPIO_NUM_42
 #define DISPLAY_BACKLIGHT_OUTPUT_INVERT true
 
+/* Camera pins */
+#define CAMERA_PIN_PWDN -1
+#define CAMERA_PIN_RESET -1
+#define CAMERA_PIN_XCLK 5
+#define CAMERA_PIN_SIOD 1
+#define CAMERA_PIN_SIOC 2
+
+#define CAMERA_PIN_D7 9
+#define CAMERA_PIN_D6 4
+#define CAMERA_PIN_D5 6
+#define CAMERA_PIN_D4 15
+#define CAMERA_PIN_D3 17
+#define CAMERA_PIN_D2 8
+#define CAMERA_PIN_D1 18
+#define CAMERA_PIN_D0 16
+#define CAMERA_PIN_VSYNC 3
+#define CAMERA_PIN_HREF 46
+#define CAMERA_PIN_PCLK 7
+
+#define XCLK_FREQ_HZ 24000000
+
 
 #endif // _BOARD_CONFIG_H_
diff --git a/main/boards/lichuang-dev/lichuang_dev_board.cc b/main/boards/lichuang-dev/lichuang_dev_board.cc
index 9da126ff..996449cd 100644
--- a/main/boards/lichuang-dev/lichuang_dev_board.cc
+++ b/main/boards/lichuang-dev/lichuang_dev_board.cc
@@ -6,6 +6,7 @@
 #include "config.h"
 #include "i2c_device.h"
 #include "iot/thing_manager.h"
+#include "esp32_camera.h"
 
 #include <esp_log.h>
 #include <esp_lcd_panel_vendor.h>
@@ -36,6 +37,36 @@ public:
     }
 };
 
+class CustomAudioCodec : public BoxAudioCodec {
+private:
+    Pca9557* pca9557_;
+
+public:
+    CustomAudioCodec(i2c_master_bus_handle_t i2c_bus, Pca9557* pca9557) 
+        : BoxAudioCodec(i2c_bus, 
+                       AUDIO_INPUT_SAMPLE_RATE, 
+                       AUDIO_OUTPUT_SAMPLE_RATE,
+                       AUDIO_I2S_GPIO_MCLK, 
+                       AUDIO_I2S_GPIO_BCLK, 
+                       AUDIO_I2S_GPIO_WS, 
+                       AUDIO_I2S_GPIO_DOUT, 
+                       AUDIO_I2S_GPIO_DIN,
+                       GPIO_NUM_NC, 
+                       AUDIO_CODEC_ES8311_ADDR, 
+                       AUDIO_CODEC_ES7210_ADDR, 
+                       AUDIO_INPUT_REFERENCE),
+          pca9557_(pca9557) {
+    }
+
+    virtual void EnableOutput(bool enable) override {
+        BoxAudioCodec::EnableOutput(enable);
+        if (enable) {
+            pca9557_->SetOutputState(1, 1);
+        } else {
+            pca9557_->SetOutputState(1, 0);
+        }
+    }
+};
 
 class LichuangDevBoard : public WifiBoard {
 private:
@@ -44,6 +75,7 @@ private:
     Button boot_button_;
     LcdDisplay* display_;
     Pca9557* pca9557_;
+    Esp32Camera* camera_;
 
     void InitializeI2c() {
         // Initialize I2C peripheral
@@ -164,11 +196,39 @@ private:
         lvgl_port_add_touch(&touch_cfg);
     }
 
-    // 物联网初始化，添加对 AI 可见设备
-    void InitializeIot() {
-        auto& thing_manager = iot::ThingManager::GetInstance();
-        thing_manager.AddThing(iot::CreateThing("Speaker"));
-        thing_manager.AddThing(iot::CreateThing("Screen"));
+    void InitializeCamera() {
+        // Open camera power
+        pca9557_->SetOutputState(2, 0);
+
+        camera_config_t config = {};
+        config.ledc_channel = LEDC_CHANNEL_2;  // LEDC通道选择  用于生成XCLK时钟 但是S3不用
+        config.ledc_timer = LEDC_TIMER_2; // LEDC timer选择  用于生成XCLK时钟 但是S3不用
+        config.pin_d0 = CAMERA_PIN_D0;
+        config.pin_d1 = CAMERA_PIN_D1;
+        config.pin_d2 = CAMERA_PIN_D2;
+        config.pin_d3 = CAMERA_PIN_D3;
+        config.pin_d4 = CAMERA_PIN_D4;
+        config.pin_d5 = CAMERA_PIN_D5;
+        config.pin_d6 = CAMERA_PIN_D6;
+        config.pin_d7 = CAMERA_PIN_D7;
+        config.pin_xclk = CAMERA_PIN_XCLK;
+        config.pin_pclk = CAMERA_PIN_PCLK;
+        config.pin_vsync = CAMERA_PIN_VSYNC;
+        config.pin_href = CAMERA_PIN_HREF;
+        config.pin_sccb_sda = -1;   // 这里写-1 表示使用已经初始化的I2C接口
+        config.pin_sccb_scl = CAMERA_PIN_SIOC;
+        config.sccb_i2c_port = 1;
+        config.pin_pwdn = CAMERA_PIN_PWDN;
+        config.pin_reset = CAMERA_PIN_RESET;
+        config.xclk_freq_hz = XCLK_FREQ_HZ;
+        config.pixel_format = PIXFORMAT_RGB565;
+        config.frame_size = FRAMESIZE_VGA;
+        config.jpeg_quality = 12;
+        config.fb_count = 1;
+        config.fb_location = CAMERA_FB_IN_PSRAM;
+        config.grab_mode = CAMERA_GRAB_WHEN_EMPTY;
+
+        camera_ = new Esp32Camera(config);
     }
 
 public:
@@ -178,24 +238,20 @@ public:
         InitializeSt7789Display();
         InitializeTouch();
         InitializeButtons();
-        InitializeIot();
+        InitializeCamera();
+
+#if CONFIG_IOT_PROTOCOL_XIAOZHI
+        auto& thing_manager = iot::ThingManager::GetInstance();
+        thing_manager.AddThing(iot::CreateThing("Speaker"));
+        thing_manager.AddThing(iot::CreateThing("Screen"));
+#endif
         GetBacklight()->RestoreBrightness();
     }
 
     virtual AudioCodec* GetAudioCodec() override {
-        static BoxAudioCodec audio_codec(
+        static CustomAudioCodec audio_codec(
             i2c_bus_, 
-            AUDIO_INPUT_SAMPLE_RATE, 
-            AUDIO_OUTPUT_SAMPLE_RATE,
-            AUDIO_I2S_GPIO_MCLK, 
-            AUDIO_I2S_GPIO_BCLK, 
-            AUDIO_I2S_GPIO_WS, 
-            AUDIO_I2S_GPIO_DOUT, 
-            AUDIO_I2S_GPIO_DIN,
-            GPIO_NUM_NC, 
-            AUDIO_CODEC_ES8311_ADDR, 
-            AUDIO_CODEC_ES7210_ADDR, 
-            AUDIO_INPUT_REFERENCE);
+            pca9557_);
         return &audio_codec;
     }
 
@@ -207,6 +263,10 @@ public:
         static PwmBacklight backlight(DISPLAY_BACKLIGHT_PIN, DISPLAY_BACKLIGHT_OUTPUT_INVERT);
         return &backlight;
     }
+
+    virtual Camera* GetCamera() override {
+        return camera_;
+    }
 };
 
 DECLARE_BOARD(LichuangDevBoard);
diff --git a/main/idf_component.yml b/main/idf_component.yml
index ab368f3f..ded1ebd6 100644
--- a/main/idf_component.yml
+++ b/main/idf_component.yml
@@ -11,13 +11,14 @@ dependencies:
   78/esp_lcd_nv3023: ~1.0.0
   78/esp-wifi-connect: ~2.4.2
   78/esp-opus-encoder: ~2.3.2
-  78/esp-ml307: ~2.0.3
+  78/esp-ml307: ~2.1.0
   78/xiaozhi-fonts: ~1.3.2
   espressif/led_strip: ^2.5.5
   espressif/esp_codec_dev: ~1.3.2
   espressif/esp-sr: ~2.1.1
   espressif/button: ~4.1.3
   espressif/knob: ^1.0.0
+  espressif/esp32-camera: ^2.0.15
   espressif/esp_lcd_touch_ft5x06: ~1.0.7
   espressif/esp_lcd_touch_gt911: ^1
   waveshare/esp_lcd_touch_cst9217: ^1.0.3
@@ -41,7 +42,7 @@ dependencies:
     version: '*'
     rules:
     - if: target in [esp32p4]
-  
+
   ## Required IDF version
   idf:
     version: '>=5.3'
diff --git a/main/mcp_server.cc b/main/mcp_server.cc
index 16559250..9815b5ba 100644
--- a/main/mcp_server.cc
+++ b/main/mcp_server.cc
@@ -19,15 +19,24 @@ McpServer::McpServer() {
     AddCommonTools();
 }
 
+McpServer::~McpServer() {
+    for (auto tool : tools_) {
+        delete tool;
+    }
+    tools_.clear();
+}
+
 void McpServer::AddCommonTools() {
+    auto& board = Board::GetInstance();
+
     AddTool("self.get_device_status",
         "Provides the real-time information of the device, including the current status of the audio speaker, screen, battery, network, etc.\n"
         "Use this tool for: \n"
         "1. Answering questions about current condition (e.g. what is the current volume of the audio speaker?)\n"
         "2. As the first step to control the device (e.g. turn up / down the volume of the audio speaker, etc.)",
         PropertyList(),
-        [](const PropertyList& properties) -> ReturnValue {
-            return Board::GetInstance().GetDeviceStatusJson();
+        [&board](const PropertyList& properties) -> ReturnValue {
+            return board.GetDeviceStatusJson();
         });
 
     AddTool("self.audio_speaker.set_volume", 
@@ -35,47 +44,67 @@ void McpServer::AddCommonTools() {
         PropertyList({
             Property("volume", kPropertyTypeInteger, 0, 100)
         }), 
-        [](const PropertyList& properties) -> ReturnValue {
-            auto codec = Board::GetInstance().GetAudioCodec();
+        [&board](const PropertyList& properties) -> ReturnValue {
+            auto codec = board.GetAudioCodec();
             codec->SetOutputVolume(properties["volume"].value<int>());
             return true;
         });
     
-    AddTool("self.screen.set_brightness",
-        "Set the brightness of the screen.",
-        PropertyList({
-            Property("brightness", kPropertyTypeInteger, 0, 100)
-        }),
-        [](const PropertyList& properties) -> ReturnValue {
-            uint8_t brightness = static_cast<uint8_t>(properties["brightness"].value<int>());
-            auto backlight = Board::GetInstance().GetBacklight();
-            if (backlight) {
+    auto backlight = board.GetBacklight();
+    if (backlight) {
+        AddTool("self.screen.set_brightness",
+            "Set the brightness of the screen.",
+            PropertyList({
+                Property("brightness", kPropertyTypeInteger, 0, 100)
+            }),
+            [backlight](const PropertyList& properties) -> ReturnValue {
+                uint8_t brightness = static_cast<uint8_t>(properties["brightness"].value<int>());
                 backlight->SetBrightness(brightness, true);
-            }
-            return true;
-        });
+                return true;
+            });
+    }
 
-    AddTool("self.screen.set_theme",
-        "Set the theme of the screen. The theme can be 'light' or 'dark'.",
-        PropertyList({
-            Property("theme", kPropertyTypeString)
-        }),
-        [](const PropertyList& properties) -> ReturnValue {
-            auto display = Board::GetInstance().GetDisplay();
-            if (display) {
+    auto display = board.GetDisplay();
+    if (display && !display->GetTheme().empty()) {
+        AddTool("self.screen.set_theme",
+            "Set the theme of the screen. The theme can be `light` or `dark`.",
+            PropertyList({
+                Property("theme", kPropertyTypeString)
+            }),
+            [display](const PropertyList& properties) -> ReturnValue {
                 display->SetTheme(properties["theme"].value<std::string>().c_str());
-            }
-            return true;
-        });
-        
+                return true;
+            });
+    }
+
+    auto camera = board.GetCamera();
+    if (camera) {
+        AddTool("self.camera.take_photo",
+            "Take a photo and explain it. Use this tool after the user asks you to see something.\n"
+            "Args:\n"
+            "  `question`: The question that you want to ask about the photo.\n"
+            "Return:\n"
+            "  A JSON object that provides the photo information.",
+            PropertyList({
+                Property("question", kPropertyTypeString)
+            }),
+            [camera](const PropertyList& properties) -> ReturnValue {
+                if (!camera->Capture()) {
+                    return "{\"success\": false, \"message\": \"Failed to capture photo\"}";
+                }
+                auto question = properties["question"].value<std::string>();
+                return camera->Explain(question);
+            });
+    }
 }
 
 void McpServer::AddTool(McpTool* tool) {
+    ESP_LOGI(TAG, "Add tool: %s", tool->name().c_str());
     tools_.push_back(tool);
 }
 
 void McpServer::AddTool(const std::string& name, const std::string& description, const PropertyList& properties, std::function<ReturnValue(const PropertyList&)> callback) {
-    tools_.push_back(new McpTool(name, description, properties, callback));
+    AddTool(new McpTool(name, description, properties, callback));
 }
 
 void McpServer::ParseMessage(const std::string& message) {
@@ -88,6 +117,21 @@ void McpServer::ParseMessage(const std::string& message) {
     cJSON_Delete(json);
 }
 
+void McpServer::ParseCapabilities(const cJSON* capabilities) {
+    auto vision = cJSON_GetObjectItem(capabilities, "vision");
+    if (cJSON_IsObject(vision)) {
+        auto url = cJSON_GetObjectItem(vision, "url");
+        auto token = cJSON_GetObjectItem(vision, "token");
+        if (cJSON_IsString(url) && cJSON_IsString(token)) {
+            ESP_LOGI(TAG, "Setting explain URL: %s, token: %s", url->valuestring, token->valuestring);
+            auto camera = Board::GetInstance().GetCamera();
+            if (camera) {
+                camera->SetExplainUrl(std::string(url->valuestring), std::string(token->valuestring));
+            }
+        }
+    }
+}
+
 void McpServer::ParseMessage(const cJSON* json) {
     // Check JSONRPC version
     auto version = cJSON_GetObjectItem(json, "jsonrpc");
@@ -123,6 +167,12 @@ void McpServer::ParseMessage(const cJSON* json) {
     auto id_int = id->valueint;
     
     if (method_str == "initialize") {
+        if (cJSON_IsObject(params)) {
+            auto capabilities = cJSON_GetObjectItem(params, "capabilities");
+            if (cJSON_IsObject(capabilities)) {
+                ParseCapabilities(capabilities);
+            }
+        }
         auto app_desc = esp_app_get_description();
         std::string message = "{\"protocolVersion\":\"2024-11-05\",\"capabilities\":{\"tools\":{}},\"serverInfo\":{\"name\":\"" BOARD_NAME "\",\"version\":\"";
         message += app_desc->version;
diff --git a/main/mcp_server.h b/main/mcp_server.h
index b5c45f80..f0c3144c 100644
--- a/main/mcp_server.h
+++ b/main/mcp_server.h
@@ -262,9 +262,10 @@ public:
 
 private:
     McpServer();
-    ~McpServer() = default;
+    ~McpServer();
 
     void AddCommonTools();
+    void ParseCapabilities(const cJSON* capabilities);
 
     void ReplyResult(int id, const std::string& result);
     void ReplyError(int id, const std::string& message);
diff --git a/main/ota.cc b/main/ota.cc
index 6a60d216..2c275739 100644
--- a/main/ota.cc
+++ b/main/ota.cc
@@ -84,18 +84,25 @@ bool Ota::CheckVersion() {
         return false;
     }
 
-    auto http = SetupHttp();
+    auto http = std::unique_ptr<Http>(SetupHttp());
 
     std::string data = board.GetJson();
     std::string method = data.length() > 0 ? "POST" : "GET";
-    if (!http->Open(method, check_version_url_, data)) {
+    http->SetContent(std::move(data));
+
+    if (!http->Open(method, check_version_url_)) {
         ESP_LOGE(TAG, "Failed to open HTTP connection");
-        delete http;
         return false;
     }
 
-    data = http->GetBody();
-    delete http;
+    auto status_code = http->GetStatusCode();
+    if (status_code != 200) {
+        ESP_LOGE(TAG, "Failed to check version, status code: %d", status_code);
+        return false;
+    }
+
+    data = http->ReadAll();
+    http->Close();
 
     // Response: { "firmware": { "version": "1.0.0", "url": "http://" } }
     // Parse the JSON response and check if the version is newer
@@ -257,17 +264,15 @@ void Ota::Upgrade(const std::string& firmware_url) {
     bool image_header_checked = false;
     std::string image_header;
 
-    auto http = Board::GetInstance().CreateHttp();
+    auto http = std::unique_ptr<Http>(Board::GetInstance().CreateHttp());
     if (!http->Open("GET", firmware_url)) {
         ESP_LOGE(TAG, "Failed to open HTTP connection");
-        delete http;
         return;
     }
 
     size_t content_length = http->GetBodyLength();
     if (content_length == 0) {
         ESP_LOGE(TAG, "Failed to get content length");
-        delete http;
         return;
     }
 
@@ -278,7 +283,6 @@ void Ota::Upgrade(const std::string& firmware_url) {
         int ret = http->Read(buffer, sizeof(buffer));
         if (ret < 0) {
             ESP_LOGE(TAG, "Failed to read HTTP data: %s", esp_err_to_name(ret));
-            delete http;
             return;
         }
 
@@ -309,13 +313,11 @@ void Ota::Upgrade(const std::string& firmware_url) {
                 auto current_version = esp_app_get_description()->version;
                 if (memcmp(new_app_info.version, current_version, sizeof(new_app_info.version)) == 0) {
                     ESP_LOGE(TAG, "Firmware version is the same, skipping upgrade");
-                    delete http;
                     return;
                 }
 
                 if (esp_ota_begin(update_partition, OTA_WITH_SEQUENTIAL_WRITES, &update_handle)) {
                     esp_ota_abort(update_handle);
-                    delete http;
                     ESP_LOGE(TAG, "Failed to begin OTA");
                     return;
                 }
@@ -328,11 +330,10 @@ void Ota::Upgrade(const std::string& firmware_url) {
         if (err != ESP_OK) {
             ESP_LOGE(TAG, "Failed to write OTA data: %s", esp_err_to_name(err));
             esp_ota_abort(update_handle);
-            delete http;
             return;
         }
     }
-    delete http;
+    http->Close();
 
     esp_err_t err = esp_ota_end(update_handle);
     if (err != ESP_OK) {
@@ -437,25 +438,22 @@ esp_err_t Ota::Activate() {
         url += "activate";
     }
 
-    auto http = SetupHttp();
+    auto http = std::unique_ptr<Http>(SetupHttp());
 
     std::string data = GetActivationPayload();
-    if (!http->Open("POST", url, data)) {
+    http->SetContent(std::move(data));
+
+    if (!http->Open("POST", url)) {
         ESP_LOGE(TAG, "Failed to open HTTP connection");
-        delete http;
         return ESP_FAIL;
     }
     
     auto status_code = http->GetStatusCode();
-    data = http->GetBody();
-    http->Close();
-    delete http;
-
     if (status_code == 202) {
         return ESP_ERR_TIMEOUT;
     }
     if (status_code != 200) {
-        ESP_LOGE(TAG, "Failed to activate, code: %d, body: %s", status_code, data.c_str());
+        ESP_LOGE(TAG, "Failed to activate, code: %d, body: %s", status_code, http->ReadAll().c_str());
         return ESP_FAIL;
     }