diff --git a/handle/yggdrasil/yggdrasil.go b/handle/yggdrasil/yggdrasil.go
index 9e50d3a..3d7b402 100644
--- a/handle/yggdrasil/yggdrasil.go
+++ b/handle/yggdrasil/yggdrasil.go
@@ -2,30 +2,40 @@ package yggdrasil
 
 import (
 	"context"
+	"encoding/json"
 	"io"
 	"log/slog"
+	"net"
 	"net/http"
+	"net/url"
 
 	"github.com/go-playground/validator/v10"
+	"github.com/julienschmidt/httprouter"
+	"github.com/samber/lo"
 	"github.com/xmdhs/authlib-skin/config"
 	"github.com/xmdhs/authlib-skin/model/yggdrasil"
+	yggdrasilM "github.com/xmdhs/authlib-skin/model/yggdrasil"
 	yggdrasilS "github.com/xmdhs/authlib-skin/service/yggdrasil"
 	"github.com/xmdhs/authlib-skin/utils"
 )
 
+type PubRsaKey string
+
 type Yggdrasil struct {
 	logger           *slog.Logger
 	validate         *validator.Validate
 	yggdrasilService *yggdrasilS.Yggdrasil
 	config           config.Config
+	pubkey           PubRsaKey
 }
 
-func NewYggdrasil(logger *slog.Logger, validate *validator.Validate, yggdrasilService *yggdrasilS.Yggdrasil, config config.Config) *Yggdrasil {
+func NewYggdrasil(logger *slog.Logger, validate *validator.Validate, yggdrasilService *yggdrasilS.Yggdrasil, config config.Config, pubkey PubRsaKey) *Yggdrasil {
 	return &Yggdrasil{
 		logger:           logger,
 		validate:         validate,
 		yggdrasilService: yggdrasilService,
 		config:           config,
+		pubkey:           pubkey,
 	}
 }
 
@@ -38,3 +48,32 @@ func getAnyModel[K any](ctx context.Context, w http.ResponseWriter, r io.Reader,
 	}
 	return a, true
 }
+
+func (y *Yggdrasil) YggdrasilRoot() httprouter.Handle {
+	return func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
+		var host string
+		if y.config.TextureBaseUrl != "" {
+			u := lo.Must(url.Parse(y.config.TextureBaseUrl))
+			host = u.Hostname()
+		} else {
+			host, _ = lo.TryOr[string](func() (string, error) {
+				h, _, err := net.SplitHostPort(r.Host)
+				return h, err
+			}, r.Host)
+		}
+		w.Write(lo.Must1(json.Marshal(yggdrasilM.Yggdrasil{
+			Meta: yggdrasilM.YggdrasilMeta{
+				ImplementationName:    "authlib-skin",
+				ImplementationVersion: "0.0.1",
+				Links: yggdrasilM.YggdrasilMetaLinks{
+					Homepage: "",
+					Register: "",
+				},
+				ServerName: "test",
+			},
+			SignaturePublickey: string(y.pubkey),
+			SkinDomains:        []string{host},
+		})))
+
+	}
+}
diff --git a/model/yggdrasil/model.go b/model/yggdrasil/model.go
index d94f21b..f61023b 100644
--- a/model/yggdrasil/model.go
+++ b/model/yggdrasil/model.go
@@ -63,3 +63,21 @@ type Session struct {
 	SelectedProfile string `json:"selectedProfile" validate:"required,uuid"`
 	ServerID        string `json:"serverId"`
 }
+
+type Yggdrasil struct {
+	Meta               YggdrasilMeta `json:"meta"`
+	SignaturePublickey string        `json:"signaturePublickey"`
+	SkinDomains        []string      `json:"skinDomains"`
+}
+
+type YggdrasilMeta struct {
+	ImplementationName    string             `json:"implementationName"`
+	ImplementationVersion string             `json:"implementationVersion"`
+	Links                 YggdrasilMetaLinks `json:"links"`
+	ServerName            string             `json:"serverName"`
+}
+
+type YggdrasilMetaLinks struct {
+	Homepage string `json:"homepage"`
+	Register string `json:"register"`
+}
diff --git a/server/provide.go b/server/provide.go
index 439c1fa..e693cfc 100644
--- a/server/provide.go
+++ b/server/provide.go
@@ -16,6 +16,7 @@ import (
 	"github.com/xmdhs/authlib-skin/db/cache"
 	"github.com/xmdhs/authlib-skin/db/ent"
 	"github.com/xmdhs/authlib-skin/db/ent/migrate"
+	"github.com/xmdhs/authlib-skin/handle/yggdrasil"
 	"github.com/xmdhs/authlib-skin/utils/sign"
 )
 
@@ -87,4 +88,12 @@ func ProvidePriKey(c config.Config) (*rsa.PrivateKey, error) {
 	return a.GetKey(), nil
 }
 
-var Set = wire.NewSet(ProvideSlog, ProvideDB, ProvideEnt, ProvideValidate, ProvideCache, ProvidePriKey)
+func ProvidePubKey(pri *rsa.PrivateKey) (yggdrasil.PubRsaKey, error) {
+	s, err := sign.NewAuthlibSignWithKey(pri).GetPubKey()
+	if err != nil {
+		return "", fmt.Errorf("ProvidePubKey: %w", err)
+	}
+	return yggdrasil.PubRsaKey(s), nil
+}
+
+var Set = wire.NewSet(ProvideSlog, ProvideDB, ProvideEnt, ProvideValidate, ProvideCache, ProvidePriKey, ProvidePubKey)
diff --git a/server/route/route.go b/server/route/route.go
index 02e86b1..1644b41 100644
--- a/server/route/route.go
+++ b/server/route/route.go
@@ -2,7 +2,6 @@ package route
 
 import (
 	"fmt"
-	"net/http"
 
 	"github.com/julienschmidt/httprouter"
 	"github.com/xmdhs/authlib-skin/handle"
@@ -38,18 +37,7 @@ func newYggdrasil(r *httprouter.Router, handelY yggdrasil.Yggdrasil) error {
 	r.POST("/api/yggdrasil/sessionserver/session/minecraft/join", warpHJSON(handelY.SessionJoin()))
 	r.GET("/api/yggdrasil/sessionserver/session/minecraft/hasJoined", warpHJSON(handelY.SessionJoin()))
 
-	r.GET("/api/yggdrasil", func(w http.ResponseWriter, r *http.Request, p httprouter.Params) {
-		w.Write([]byte(`{
-			"meta": {
-				"serverName": "test",
-				"implementationName": "test",
-				"implementationVersion": "999.999.999"
-			},
-			"skinDomains": [
-			],
-			"signaturePublickey": "123"
-		}`))
-	})
+	r.GET("/api/yggdrasil", warpHJSON(handelY.YggdrasilRoot()))
 	return nil
 }
 
diff --git a/server/wire_gen.go b/server/wire_gen.go
index bc5c2d5..bd30c2e 100644
--- a/server/wire_gen.go
+++ b/server/wire_gen.go
@@ -44,7 +44,13 @@ func InitializeRoute(ctx context.Context, c config.Config) (*http.Server, func()
 		return nil, nil, err
 	}
 	yggdrasilYggdrasil := yggdrasil.NewYggdrasil(client, cache, c, privateKey)
-	yggdrasil3 := yggdrasil2.NewYggdrasil(logger, validate, yggdrasilYggdrasil, c)
+	pubRsaKey, err := ProvidePubKey(privateKey)
+	if err != nil {
+		cleanup2()
+		cleanup()
+		return nil, nil, err
+	}
+	yggdrasil3 := yggdrasil2.NewYggdrasil(logger, validate, yggdrasilYggdrasil, c, pubRsaKey)
 	webService := service.NewWebService(c, client)
 	handel := handle.NewHandel(webService, validate, c, logger)
 	router, err := route.NewRoute(yggdrasil3, handel)