diff --git a/drivers/all.go b/drivers/all.go
index 5b274eab..d135aae6 100644
--- a/drivers/all.go
+++ b/drivers/all.go
@@ -23,6 +23,7 @@ import (
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/cloudreve"
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/cloudreve_v4"
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/crypt"
+	_ "github.com/OpenListTeam/OpenList/v4/drivers/degoo"
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/doubao"
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/doubao_share"
 	_ "github.com/OpenListTeam/OpenList/v4/drivers/dropbox"
diff --git a/drivers/degoo/driver.go b/drivers/degoo/driver.go
new file mode 100644
index 00000000..b42ecf9d
--- /dev/null
+++ b/drivers/degoo/driver.go
@@ -0,0 +1,205 @@
+package degoo
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/OpenListTeam/OpenList/v4/drivers/base"
+	"github.com/OpenListTeam/OpenList/v4/internal/driver"
+	"github.com/OpenListTeam/OpenList/v4/internal/errs"
+	"github.com/OpenListTeam/OpenList/v4/internal/model"
+	"github.com/OpenListTeam/OpenList/v4/pkg/utils"
+)
+
+type Degoo struct {
+	model.Storage
+	Addition
+	client *http.Client
+}
+
+func (d *Degoo) Config() driver.Config {
+	return config
+}
+
+func (d *Degoo) GetAddition() driver.Additional {
+	return &d.Addition
+}
+
+func (d *Degoo) Init(ctx context.Context) error {
+
+	d.client = base.HttpClient
+
+	if d.Token == "" {
+		err := d.login(ctx)
+		if err != nil {
+			return err
+		}
+	}
+
+	return d.getDevices(ctx)
+}
+
+func (d *Degoo) Drop(ctx context.Context) error {
+	return nil
+}
+
+func (d *Degoo) List(ctx context.Context, dir model.Obj, args model.ListArgs) ([]model.Obj, error) {
+	items, err := d.getAllFileChildren5(ctx, dir.GetID())
+	if err != nil {
+		return nil, err
+	}
+	return utils.MustSliceConvert(items, func(s DegooFileItem) model.Obj {
+		isFolder := s.Category == 2 || s.Category == 1 || s.Category == 10
+
+		createTime, modTime, _ := humanReadableTimes(s.CreationTime, s.LastModificationTime, s.LastUploadTime)
+
+		size, err := strconv.ParseInt(s.Size, 10, 64)
+		if err != nil {
+			size = 0 // Default to 0 if size parsing fails
+		}
+
+		return &model.Object{
+			ID:       s.ID,
+			Path:     s.FilePath,
+			Name:     s.Name,
+			Size:     size,
+			Modified: modTime,
+			Ctime:    createTime,
+			IsFolder: isFolder,
+		}
+	}), nil
+}
+
+func (d *Degoo) Link(ctx context.Context, file model.Obj, args model.LinkArgs) (*model.Link, error) {
+	item, err := d.getOverlay4(ctx, file.GetID())
+	if err != nil {
+		return nil, err
+	}
+
+	return &model.Link{URL: item.URL}, nil
+}
+
+func (d *Degoo) MakeDir(ctx context.Context, parentDir model.Obj, dirName string) error {
+	// This is done by calling the setUploadFile3 API with a special checksum and size.
+	const query = `mutation SetUploadFile3($Token: String!, $FileInfos: [FileInfoUpload3]!) { setUploadFile3(Token: $Token, FileInfos: $FileInfos) }`
+
+	variables := map[string]interface{}{
+		"Token": d.Token,
+		"FileInfos": []map[string]interface{}{
+			{
+				"Checksum":     folderChecksum,
+				"Name":         dirName,
+				"CreationTime": time.Now().UnixMilli(),
+				"ParentID":     parentDir.GetID(),
+				"Size":         0,
+			},
+		},
+	}
+
+	_, err := d.apiCall(ctx, "SetUploadFile3", query, variables)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (d *Degoo) Move(ctx context.Context, srcObj, dstDir model.Obj) (model.Obj, error) {
+	const query = `mutation SetMoveFile($Token: String!, $Copy: Boolean, $NewParentID: String!, $FileIDs: [String]!) { setMoveFile(Token: $Token, Copy: $Copy, NewParentID: $NewParentID, FileIDs: $FileIDs) }`
+
+	variables := map[string]interface{}{
+		"Token":       d.Token,
+		"Copy":        false,
+		"NewParentID": dstDir.GetID(),
+		"FileIDs":     []string{srcObj.GetID()},
+	}
+
+	_, err := d.apiCall(ctx, "SetMoveFile", query, variables)
+	if err != nil {
+		return nil, err
+	}
+
+	return srcObj, nil
+}
+
+func (d *Degoo) Rename(ctx context.Context, srcObj model.Obj, newName string) error {
+	const query = `mutation SetRenameFile($Token: String!, $FileRenames: [FileRenameInfo]!) { setRenameFile(Token: $Token, FileRenames: $FileRenames) }`
+
+	variables := map[string]interface{}{
+		"Token": d.Token,
+		"FileRenames": []DegooFileRenameInfo{
+			{
+				ID:      srcObj.GetID(),
+				NewName: newName,
+			},
+		},
+	}
+
+	_, err := d.apiCall(ctx, "SetRenameFile", query, variables)
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (d *Degoo) Copy(ctx context.Context, srcObj, dstDir model.Obj) (model.Obj, error) {
+	// Copy is not implemented, Degoo API does not support direct copy.
+	return nil, errs.NotImplement
+}
+
+func (d *Degoo) Remove(ctx context.Context, obj model.Obj) error {
+	// Remove deletes a file or folder (moves to trash).
+	const query = `mutation SetDeleteFile5($Token: String!, $IsInRecycleBin: Boolean!, $IDs: [IDType]!) { setDeleteFile5(Token: $Token, IsInRecycleBin: $IsInRecycleBin, IDs: $IDs) }`
+
+	variables := map[string]interface{}{
+		"Token":          d.Token,
+		"IsInRecycleBin": false,
+		"IDs":            []map[string]string{{"FileID": obj.GetID()}},
+	}
+
+	_, err := d.apiCall(ctx, "SetDeleteFile5", query, variables)
+	return err
+}
+
+func (d *Degoo) Put(ctx context.Context, dstDir model.Obj, file model.FileStreamer, up driver.UpdateProgress) error {
+	tmpF, err := file.CacheFullAndWriter(&up, nil)
+	if err != nil {
+		return err
+	}
+
+	parentID := dstDir.GetID()
+
+	// Calculate the checksum for the file.
+	checksum, err := d.checkSum(tmpF)
+	if err != nil {
+		return err
+	}
+
+	// 1. Get upload authorization via getBucketWriteAuth4.
+	auths, err := d.getBucketWriteAuth4(ctx, file, parentID, checksum)
+	if err != nil {
+		return err
+	}
+
+	// 2. Upload file.
+	// support rapid upload
+	if auths.GetBucketWriteAuth4[0].Error != "Already exist!" {
+		err = d.uploadS3(ctx, auths, tmpF, file, checksum)
+		if err != nil {
+			return err
+		}
+	}
+
+	// 3. Register metadata with setUploadFile3.
+	data, err := d.SetUploadFile3(ctx, file, parentID, checksum)
+	if err != nil {
+		return err
+	}
+	if !data.SetUploadFile3 {
+		return fmt.Errorf("setUploadFile3 failed: %v", data)
+	}
+	return nil
+}
diff --git a/drivers/degoo/meta.go b/drivers/degoo/meta.go
new file mode 100644
index 00000000..62ce306a
--- /dev/null
+++ b/drivers/degoo/meta.go
@@ -0,0 +1,26 @@
+package degoo
+
+import (
+	"github.com/OpenListTeam/OpenList/v4/internal/driver"
+	"github.com/OpenListTeam/OpenList/v4/internal/op"
+)
+
+type Addition struct {
+	driver.RootID
+	Username string `json:"username" required:"true" help:"Your Degoo account email"`
+	Password string `json:"password" required:"true" help:"Your Degoo account password"`
+	Token    string `json:"token" help:"Access token for Degoo API, will be obtained automatically if not provided"`
+}
+
+var config = driver.Config{
+	Name:              "Degoo",
+	LocalSort:         true,
+	DefaultRoot:       "0",
+	NoOverwriteUpload: true,
+}
+
+func init() {
+	op.RegisterDriver(func() driver.Driver {
+		return &Degoo{}
+	})
+}
diff --git a/drivers/degoo/types.go b/drivers/degoo/types.go
new file mode 100644
index 00000000..9d793b76
--- /dev/null
+++ b/drivers/degoo/types.go
@@ -0,0 +1,110 @@
+package degoo
+
+import (
+	"encoding/json"
+)
+
+// DegooLoginRequest represents the login request body.
+type DegooLoginRequest struct {
+	GenerateToken bool   `json:"GenerateToken"`
+	Username      string `json:"Username"`
+	Password      string `json:"Password"`
+}
+
+// DegooLoginResponse represents a successful login response.
+type DegooLoginResponse struct {
+	Token        string `json:"Token"`
+	RefreshToken string `json:"RefreshToken"`
+}
+
+// DegooAccessTokenRequest represents the token refresh request body.
+type DegooAccessTokenRequest struct {
+	RefreshToken string `json:"RefreshToken"`
+}
+
+// DegooAccessTokenResponse represents the token refresh response.
+type DegooAccessTokenResponse struct {
+	AccessToken string `json:"AccessToken"`
+}
+
+// DegooFileItem represents a Degoo file or folder.
+type DegooFileItem struct {
+	ID                   string `json:"ID"`
+	ParentID             string `json:"ParentID"`
+	Name                 string `json:"Name"`
+	Category             int    `json:"Category"`
+	Size                 string `json:"Size"`
+	URL                  string `json:"URL"`
+	CreationTime         string `json:"CreationTime"`
+	LastModificationTime string `json:"LastModificationTime"`
+	LastUploadTime       string `json:"LastUploadTime"`
+	MetadataID           string `json:"MetadataID"`
+	DeviceID             int64  `json:"DeviceID"`
+	FilePath             string `json:"FilePath"`
+	IsInRecycleBin       bool   `json:"IsInRecycleBin"`
+}
+
+type DegooErrors struct {
+	Path      []string    `json:"path"`
+	Data      interface{} `json:"data"`
+	ErrorType string      `json:"errorType"`
+	ErrorInfo interface{} `json:"errorInfo"`
+	Message   string      `json:"message"`
+}
+
+// DegooGraphqlResponse is the common structure for GraphQL API responses.
+type DegooGraphqlResponse struct {
+	Data   json.RawMessage `json:"data"`
+	Errors []DegooErrors   `json:"errors,omitempty"`
+}
+
+// DegooGetChildren5Data is the data field for getFileChildren5.
+type DegooGetChildren5Data struct {
+	GetFileChildren5 struct {
+		Items     []DegooFileItem `json:"Items"`
+		NextToken string          `json:"NextToken"`
+	} `json:"getFileChildren5"`
+}
+
+// DegooGetOverlay4Data is the data field for getOverlay4.
+type DegooGetOverlay4Data struct {
+	GetOverlay4 DegooFileItem `json:"getOverlay4"`
+}
+
+// DegooFileRenameInfo represents a file rename operation.
+type DegooFileRenameInfo struct {
+	ID      string `json:"ID"`
+	NewName string `json:"NewName"`
+}
+
+// DegooFileIDs represents a list of file IDs for move operations.
+type DegooFileIDs struct {
+	FileIDs []string `json:"FileIDs"`
+}
+
+// DegooGetBucketWriteAuth4Data is the data field for GetBucketWriteAuth4.
+type DegooGetBucketWriteAuth4Data struct {
+	GetBucketWriteAuth4 []struct {
+		AuthData struct {
+			PolicyBase64 string `json:"PolicyBase64"`
+			Signature    string `json:"Signature"`
+			BaseURL      string `json:"BaseURL"`
+			KeyPrefix    string `json:"KeyPrefix"`
+			AccessKey    struct {
+				Key   string `json:"Key"`
+				Value string `json:"Value"`
+			} `json:"AccessKey"`
+			ACL            string `json:"ACL"`
+			AdditionalBody []struct {
+				Key   string `json:"Key"`
+				Value string `json:"Value"`
+			} `json:"AdditionalBody"`
+		} `json:"AuthData"`
+		Error interface{} `json:"Error"`
+	} `json:"getBucketWriteAuth4"`
+}
+
+// DegooSetUploadFile3Data is the data field for SetUploadFile3.
+type DegooSetUploadFile3Data struct {
+	SetUploadFile3 bool `json:"setUploadFile3"`
+}
diff --git a/drivers/degoo/upload.go b/drivers/degoo/upload.go
new file mode 100644
index 00000000..88b9e740
--- /dev/null
+++ b/drivers/degoo/upload.go
@@ -0,0 +1,198 @@
+package degoo
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha1"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"mime/multipart"
+	"net/http"
+	"strconv"
+	"strings"
+
+	"github.com/OpenListTeam/OpenList/v4/internal/driver"
+	"github.com/OpenListTeam/OpenList/v4/internal/model"
+	"github.com/OpenListTeam/OpenList/v4/pkg/utils"
+)
+
+func (d *Degoo) getBucketWriteAuth4(ctx context.Context, file model.FileStreamer, parentID string, checksum string) (*DegooGetBucketWriteAuth4Data, error) {
+	const query = `query GetBucketWriteAuth4(
+    $Token: String!
+    $ParentID: String!
+    $StorageUploadInfos: [StorageUploadInfo2]
+  ) {
+    getBucketWriteAuth4(
+      Token: $Token
+      ParentID: $ParentID
+      StorageUploadInfos: $StorageUploadInfos
+    ) {
+      AuthData {
+        PolicyBase64
+        Signature
+        BaseURL
+        KeyPrefix
+        AccessKey {
+          Key
+          Value
+        }
+        ACL
+        AdditionalBody {
+          Key
+          Value
+        }
+      }
+      Error
+    }
+  }`
+
+	variables := map[string]interface{}{
+		"Token":    d.Token,
+		"ParentID": parentID,
+		"StorageUploadInfos": []map[string]string{{
+			"FileName": file.GetName(),
+			"Checksum": checksum,
+			"Size":     strconv.FormatInt(file.GetSize(), 10),
+		}}}
+
+	data, err := d.apiCall(ctx, "GetBucketWriteAuth4", query, variables)
+	if err != nil {
+		return nil, err
+	}
+
+	var resp DegooGetBucketWriteAuth4Data
+	err = json.Unmarshal(data, &resp)
+	if err != nil {
+		return nil, err
+	}
+
+	return &resp, nil
+}
+
+// checkSum calculates the SHA1-based checksum for Degoo upload API.
+func (d *Degoo) checkSum(file io.Reader) (string, error) {
+	seed := []byte{13, 7, 2, 2, 15, 40, 75, 117, 13, 10, 19, 16, 29, 23, 3, 36}
+	hasher := sha1.New()
+	hasher.Write(seed)
+
+	if _, err := utils.CopyWithBuffer(hasher, file); err != nil {
+		return "", err
+	}
+
+	cs := hasher.Sum(nil)
+
+	csBytes := []byte{10, byte(len(cs))}
+	csBytes = append(csBytes, cs...)
+	csBytes = append(csBytes, 16, 0)
+
+	return strings.ReplaceAll(base64.StdEncoding.EncodeToString(csBytes), "/", "_"), nil
+}
+
+func (d *Degoo) uploadS3(ctx context.Context, auths *DegooGetBucketWriteAuth4Data, tmpF model.File, file model.FileStreamer, checksum string) error {
+	a := auths.GetBucketWriteAuth4[0].AuthData
+
+	_, err := tmpF.Seek(0, io.SeekStart)
+	if err != nil {
+		return err
+	}
+
+	ext := utils.Ext(file.GetName())
+	key := fmt.Sprintf("%s%s/%s.%s", a.KeyPrefix, ext, checksum, ext)
+
+	var b bytes.Buffer
+	w := multipart.NewWriter(&b)
+	err = w.WriteField("key", key)
+	if err != nil {
+		return err
+	}
+	err = w.WriteField("acl", a.ACL)
+	if err != nil {
+		return err
+	}
+	err = w.WriteField("policy", a.PolicyBase64)
+	if err != nil {
+		return err
+	}
+	err = w.WriteField("signature", a.Signature)
+	if err != nil {
+		return err
+	}
+	err = w.WriteField(a.AccessKey.Key, a.AccessKey.Value)
+	if err != nil {
+		return err
+	}
+	for _, additional := range a.AdditionalBody {
+		err = w.WriteField(additional.Key, additional.Value)
+		if err != nil {
+			return err
+		}
+	}
+	err = w.WriteField("Content-Type", "")
+	if err != nil {
+		return err
+	}
+
+	_, err = w.CreateFormFile("file", key)
+	if err != nil {
+		return err
+	}
+
+	headSize := b.Len()
+	err = w.Close()
+	if err != nil {
+		return err
+	}
+	head := bytes.NewReader(b.Bytes()[:headSize])
+	tail := bytes.NewReader(b.Bytes()[headSize:])
+
+	rateLimitedRd := driver.NewLimitedUploadStream(ctx, io.MultiReader(head, tmpF, tail))
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, a.BaseURL, rateLimitedRd)
+	if err != nil {
+		return err
+	}
+	req.Header.Add("ngsw-bypass", "1")
+	req.Header.Add("Content-Type", w.FormDataContentType())
+
+	res, err := d.client.Do(req)
+	if err != nil {
+		return err
+	}
+	defer res.Body.Close()
+	if res.StatusCode != http.StatusNoContent {
+		return fmt.Errorf("upload failed with status code %d", res.StatusCode)
+	}
+	return nil
+}
+
+var _ driver.Driver = (*Degoo)(nil)
+
+func (d *Degoo) SetUploadFile3(ctx context.Context, file model.FileStreamer, parentID string, checksum string) (*DegooSetUploadFile3Data, error) {
+	const query = `mutation SetUploadFile3($Token: String!, $FileInfos: [FileInfoUpload3]!) {
+    setUploadFile3(Token: $Token, FileInfos: $FileInfos)
+  }`
+
+	variables := map[string]interface{}{
+		"Token": d.Token,
+		"FileInfos": []map[string]string{{
+			"Checksum":     checksum,
+			"CreationTime": strconv.FormatInt(file.CreateTime().UnixMilli(), 10),
+			"Name":         file.GetName(),
+			"ParentID":     parentID,
+			"Size":         strconv.FormatInt(file.GetSize(), 10),
+		}}}
+
+	data, err := d.apiCall(ctx, "SetUploadFile3", query, variables)
+	if err != nil {
+		return nil, err
+	}
+
+	var resp DegooSetUploadFile3Data
+	err = json.Unmarshal(data, &resp)
+	if err != nil {
+		return nil, err
+	}
+
+	return &resp, nil
+}
diff --git a/drivers/degoo/util.go b/drivers/degoo/util.go
new file mode 100644
index 00000000..067f36f9
--- /dev/null
+++ b/drivers/degoo/util.go
@@ -0,0 +1,245 @@
+package degoo
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strconv"
+	"time"
+
+	"github.com/OpenListTeam/OpenList/v4/drivers/base"
+	"github.com/OpenListTeam/OpenList/v4/internal/op"
+)
+
+// Thanks to https://github.com/bernd-wechner/Degoo for API research.
+
+const (
+	loginURL       = "https://rest-api.degoo.com/login"
+	accessTokenURL = "https://rest-api.degoo.com/access-token/v2"
+
+	// Degoo GraphQL API endpoint.
+	apiURL = "https://production-appsync.degoo.com/graphql"
+	// Fixed API key.
+	apiKey = "da2-vs6twz5vnjdavpqndtbzg3prra"
+	// Checksum for new folder.
+	folderChecksum = "CgAQAg"
+)
+
+// login performs the login process and retrieves the access token.
+func (d *Degoo) login(ctx context.Context) error {
+	creds := DegooLoginRequest{
+		GenerateToken: true,
+		Username:      d.Addition.Username,
+		Password:      d.Addition.Password,
+	}
+
+	jsonCreds, err := json.Marshal(creds)
+	if err != nil {
+		return fmt.Errorf("failed to serialize login credentials: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", loginURL, bytes.NewBuffer(jsonCreds))
+	if err != nil {
+		return fmt.Errorf("failed to create login request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("User-Agent", base.UserAgent)
+	req.Header.Set("Origin", "https://app.degoo.com")
+
+	resp, err := d.client.Do(req)
+	if err != nil {
+		return fmt.Errorf("login request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return fmt.Errorf("login failed: %s", resp.Status)
+	}
+
+	var loginResp DegooLoginResponse
+	if err := json.NewDecoder(resp.Body).Decode(&loginResp); err != nil {
+		return fmt.Errorf("failed to parse login response: %w", err)
+	}
+
+	if loginResp.RefreshToken != "" {
+		tokenReq := DegooAccessTokenRequest{RefreshToken: loginResp.RefreshToken}
+		jsonTokenReq, err := json.Marshal(tokenReq)
+		if err != nil {
+			return fmt.Errorf("failed to serialize access token request: %w", err)
+		}
+
+		tokenReqHTTP, err := http.NewRequestWithContext(ctx, "POST", accessTokenURL, bytes.NewBuffer(jsonTokenReq))
+		if err != nil {
+			return fmt.Errorf("failed to create access token request: %w", err)
+		}
+
+		tokenReqHTTP.Header.Set("User-Agent", base.UserAgent)
+
+		tokenResp, err := d.client.Do(tokenReqHTTP)
+		if err != nil {
+			return fmt.Errorf("failed to get access token: %w", err)
+		}
+		defer tokenResp.Body.Close()
+
+		var accessTokenResp DegooAccessTokenResponse
+		if err := json.NewDecoder(tokenResp.Body).Decode(&accessTokenResp); err != nil {
+			return fmt.Errorf("failed to parse access token response: %w", err)
+		}
+		d.Token = accessTokenResp.AccessToken
+	} else if loginResp.Token != "" {
+		d.Token = loginResp.Token
+	} else {
+		return fmt.Errorf("login failed, no valid token returned")
+	}
+	return nil
+}
+
+// apiCall performs a Degoo GraphQL API request.
+func (d *Degoo) apiCall(ctx context.Context, operationName, query string, variables map[string]interface{}) (json.RawMessage, error) {
+	reqBody := map[string]interface{}{
+		"operationName": operationName,
+		"query":         query,
+		"variables":     variables,
+	}
+
+	jsonBody, err := json.Marshal(reqBody)
+	if err != nil {
+		return nil, fmt.Errorf("failed to serialize request body: %w", err)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", apiURL, bytes.NewReader(jsonBody))
+	if err != nil {
+		return nil, fmt.Errorf("failed to create request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("x-api-key", apiKey)
+	req.Header.Set("User-Agent", base.UserAgent)
+
+	if d.Token != "" {
+		req.Header.Set("Authorization", fmt.Sprintf("Bearer %s", d.Token))
+	}
+
+	resp, err := d.client.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("API request failed: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("API response error: %s", resp.Status)
+	}
+
+	var degooResp DegooGraphqlResponse
+	if err := json.NewDecoder(resp.Body).Decode(&degooResp); err != nil {
+		return nil, fmt.Errorf("failed to decode API response: %w", err)
+	}
+
+	if len(degooResp.Errors) > 0 {
+		if degooResp.Errors[0].ErrorType == "Unauthorized" {
+			err = d.login(ctx)
+			if err != nil {
+				return nil, fmt.Errorf("unauthorized access, login failed: %w", err)
+			}
+			// Retry the API call after re-login
+			return d.apiCall(ctx, operationName, query, variables)
+		}
+		return nil, fmt.Errorf("degoo API returned an error: %v", degooResp.Errors[0].Message)
+	}
+
+	return degooResp.Data, nil
+}
+
+// humanReadableTimes converts Degoo timestamps to Go time.Time.
+func humanReadableTimes(creation, modification, upload string) (cTime, mTime, uTime time.Time) {
+	cTime, _ = time.Parse(time.RFC3339, creation)
+	if modification != "" {
+		modMillis, _ := strconv.ParseInt(modification, 10, 64)
+		mTime = time.Unix(0, modMillis*int64(time.Millisecond))
+	}
+	if upload != "" {
+		upMillis, _ := strconv.ParseInt(upload, 10, 64)
+		uTime = time.Unix(0, upMillis*int64(time.Millisecond))
+	}
+	return cTime, mTime, uTime
+}
+
+// getDevices fetches and caches top-level devices and folders.
+func (d *Degoo) getDevices(ctx context.Context) error {
+	const query = `query GetFileChildren5($Token: String! $ParentID: String $AllParentIDs: [String] $Limit: Int! $Order: Int! $NextToken: String ) { getFileChildren5(Token: $Token ParentID: $ParentID AllParentIDs: $AllParentIDs Limit: $Limit Order: $Order NextToken: $NextToken) { Items { ParentID } NextToken } }`
+	variables := map[string]interface{}{
+		"Token":    d.Token,
+		"ParentID": "0",
+		"Limit":    10,
+		"Order":    3,
+	}
+	data, err := d.apiCall(ctx, "GetFileChildren5", query, variables)
+	if err != nil {
+		return err
+	}
+	var resp DegooGetChildren5Data
+	if err := json.Unmarshal(data, &resp); err != nil {
+		return fmt.Errorf("failed to parse device list: %w", err)
+	}
+	if d.RootFolderID == "0" {
+		if len(resp.GetFileChildren5.Items) > 0 {
+			d.RootFolderID = resp.GetFileChildren5.Items[0].ParentID
+		}
+		op.MustSaveDriverStorage(d)
+	}
+	return nil
+}
+
+// getAllFileChildren5 fetches all children of a directory with pagination.
+func (d *Degoo) getAllFileChildren5(ctx context.Context, parentID string) ([]DegooFileItem, error) {
+	const query = `query GetFileChildren5($Token: String! $ParentID: String $AllParentIDs: [String] $Limit: Int! $Order: Int! $NextToken: String ) { getFileChildren5(Token: $Token ParentID: $ParentID AllParentIDs: $AllParentIDs Limit: $Limit Order: $Order NextToken: $NextToken) { Items { ID ParentID Name Category Size CreationTime LastModificationTime LastUploadTime FilePath IsInRecycleBin DeviceID MetadataID } NextToken } }`
+	var allItems []DegooFileItem
+	nextToken := ""
+	for {
+		variables := map[string]interface{}{
+			"Token":    d.Token,
+			"ParentID": parentID,
+			"Limit":    1000,
+			"Order":    3,
+		}
+		if nextToken != "" {
+			variables["NextToken"] = nextToken
+		}
+		data, err := d.apiCall(ctx, "GetFileChildren5", query, variables)
+		if err != nil {
+			return nil, err
+		}
+		var resp DegooGetChildren5Data
+		if err := json.Unmarshal(data, &resp); err != nil {
+			return nil, err
+		}
+		allItems = append(allItems, resp.GetFileChildren5.Items...)
+		if resp.GetFileChildren5.NextToken == "" {
+			break
+		}
+		nextToken = resp.GetFileChildren5.NextToken
+	}
+	return allItems, nil
+}
+
+// getOverlay4 fetches metadata for a single item by ID.
+func (d *Degoo) getOverlay4(ctx context.Context, id string) (DegooFileItem, error) {
+	const query = `query GetOverlay4($Token: String!, $ID: IDType!) { getOverlay4(Token: $Token, ID: $ID) { ID ParentID Name Category Size CreationTime LastModificationTime LastUploadTime URL FilePath IsInRecycleBin DeviceID MetadataID } }`
+	variables := map[string]interface{}{
+		"Token": d.Token,
+		"ID": map[string]string{
+			"FileID": id,
+		},
+	}
+	data, err := d.apiCall(ctx, "GetOverlay4", query, variables)
+	if err != nil {
+		return DegooFileItem{}, err
+	}
+	var resp DegooGetOverlay4Data
+	if err := json.Unmarshal(data, &resp); err != nil {
+		return DegooFileItem{}, fmt.Errorf("failed to parse item metadata: %w", err)
+	}
+	return resp.GetOverlay4, nil
+}