diff --git a/go.mod b/go.mod
index 386d587..4de5c01 100644
--- a/go.mod
+++ b/go.mod
@@ -6,7 +6,7 @@ require (
 	github.com/antihax/optional v1.0.0
 	github.com/asaskevich/govalidator v0.0.0-20210307081110-f21760c49a8d
 	github.com/bronze1man/radius v0.0.0-20190516032554-afd8baec892d
-	github.com/free5gc/openapi v1.0.7-0.20230802173229-2b3ded4db293
+	github.com/free5gc/openapi v1.0.7-0.20231112094355-a96c3450377e
 	github.com/free5gc/util v1.0.5-0.20231001095115-433858e5be94
 	github.com/gin-gonic/gin v1.9.1
 	github.com/google/gopacket v1.1.19
diff --git a/go.sum b/go.sum
index ecef5d3..4976549 100644
--- a/go.sum
+++ b/go.sum
@@ -61,8 +61,8 @@ github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.m
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/evanphx/json-patch v0.5.2/go.mod h1:ZWS5hhDbVDyob71nXKNL0+PWn6ToqBHMikGIFbs31qQ=
-github.com/free5gc/openapi v1.0.7-0.20230802173229-2b3ded4db293 h1:BSIvKCYu7646sE8J9R1L8v2R435otUik3wOFN33csfs=
-github.com/free5gc/openapi v1.0.7-0.20230802173229-2b3ded4db293/go.mod h1:iw/N0E+FlX44EEx24IBi2EdZW8v+bkj3ETWPGnlK9DI=
+github.com/free5gc/openapi v1.0.7-0.20231112094355-a96c3450377e h1:mXnoioq+fxpChliDl5Uy+m6+Hm7iWrJPZo9mi6BijHE=
+github.com/free5gc/openapi v1.0.7-0.20231112094355-a96c3450377e/go.mod h1:qv9KqEucoZSeENPRFGxfTe+33ZWYyiYFx1Rj+H0DoWA=
 github.com/free5gc/util v1.0.5-0.20231001095115-433858e5be94 h1:tNylIqH/m5Kq+3KuC+jjXGl06Y6EmM8yq61ZUgNrPBY=
 github.com/free5gc/util v1.0.5-0.20231001095115-433858e5be94/go.mod h1:aMszJZbCkcg5xaGgzya+55jz+OPMsJqPLq5Z3fWDFPE=
 github.com/gabriel-vasile/mimetype v1.4.2 h1:w5qFW6JKBz9Y393Y4q372O9A7cUSequkh1Q7OhCmWKU=
@@ -308,7 +308,6 @@ golang.org/x/net v0.0.0-20200822124328-c89045814202/go.mod h1:/O7V0waA8r7cgGh81R
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c=
 golang.org/x/net v0.6.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
-golang.org/x/net v0.7.0/go.mod h1:2Tu9+aMcznHK/AK1HMvgo6xiTLG5rD5rZLDS+rp2Bjs=
 golang.org/x/net v0.8.0/go.mod h1:QVkue5JL9kW//ek3r6jTKnTFis1tRmNAW2P1shuFdJc=
 golang.org/x/net v0.10.0/go.mod h1:0qNGK6F8kojg2nk9dLZ2mShWaEBan6FAoqfSigmmuDg=
 golang.org/x/net v0.17.0 h1:pVaXccu2ozPjCXewfr1S7xza/zcXTity9cCdXQYSjIM=
@@ -525,6 +524,7 @@ gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
diff --git a/internal/sbi/consumer/nf_discovery.go b/internal/sbi/consumer/nf_discovery.go
index 59035ec..ae508fe 100644
--- a/internal/sbi/consumer/nf_discovery.go
+++ b/internal/sbi/consumer/nf_discovery.go
@@ -1,7 +1,6 @@
 package consumer
 
 import (
-	"context"
 	"fmt"
 	"net/http"
 
@@ -16,9 +15,13 @@ func SendSearchNFInstances(nrfUri string, targetNfType, requestNfType models.NfT
 	configuration := Nnrf_NFDiscovery.NewConfiguration()
 	configuration.SetBasePath(nrfUri)
 	client := Nnrf_NFDiscovery.NewAPIClient(configuration)
+	ctx, _, err := GetTokenCtx("nnrf-disc", "NRF")
+	if err != nil {
+		return nil, err
+	}
 
-	result, rsp, rspErr := client.NFInstancesStoreApi.SearchNFInstances(context.TODO(),
-		targetNfType, requestNfType, &param)
+	result, rsp, rspErr := client.NFInstancesStoreApi.SearchNFInstances(
+		ctx, targetNfType, requestNfType, &param)
 	if rspErr != nil {
 		return nil, fmt.Errorf("NFInstancesStoreApi Response error: %+w", rspErr)
 	}
diff --git a/internal/sbi/consumer/nf_management.go b/internal/sbi/consumer/nf_management.go
index 4c4cc8e..7b280c9 100644
--- a/internal/sbi/consumer/nf_management.go
+++ b/internal/sbi/consumer/nf_management.go
@@ -9,11 +9,29 @@ import (
 
 	ausf_context "github.com/free5gc/ausf/internal/context"
 	"github.com/free5gc/ausf/internal/logger"
+	"github.com/free5gc/ausf/pkg/factory"
 	"github.com/free5gc/openapi"
 	"github.com/free5gc/openapi/Nnrf_NFManagement"
 	"github.com/free5gc/openapi/models"
+	"github.com/free5gc/openapi/oauth"
 )
 
+func GetTokenCtx(scope, targetNF string) (context.Context, *models.ProblemDetails, error) {
+	ausfSelf := ausf_context.GetSelf()
+	cfg := factory.AusfConfig
+	if cfg.GetOAuth() {
+		tok, pd, err := oauth.SendAccTokenReq(
+			ausfSelf.NfId, models.NfType_AUSF,
+			scope, targetNF, ausfSelf.NrfUri)
+		if err != nil {
+			return nil, pd, err
+		}
+		return context.WithValue(context.Background(),
+			openapi.ContextOAuth2, tok), pd, nil
+	}
+	return context.TODO(), nil, nil
+}
+
 func BuildNFInstance(ausfContext *ausf_context.AUSFContext) (profile models.NfProfile, err error) {
 	profile.NfInstanceId = ausfContext.NfId
 	profile.NfType = models.NfType_AUSF
@@ -75,6 +93,10 @@ func SendRegisterNFInstance(nrfUri, nfInstanceId string, profile models.NfProfil
 
 func SendDeregisterNFInstance() (*models.ProblemDetails, error) {
 	logger.ConsumerLog.Infof("Send Deregister NFInstance")
+	ctx, pd, err := GetTokenCtx("nnrf-nfm", "NRF")
+	if err != nil {
+		return pd, err
+	}
 
 	ausfSelf := ausf_context.GetSelf()
 	// Set client and set url
@@ -82,7 +104,7 @@ func SendDeregisterNFInstance() (*models.ProblemDetails, error) {
 	configuration.SetBasePath(ausfSelf.NrfUri)
 	client := Nnrf_NFManagement.NewAPIClient(configuration)
 
-	res, err := client.NFInstanceIDDocumentApi.DeregisterNFInstance(context.Background(), ausfSelf.NfId)
+	res, err := client.NFInstanceIDDocumentApi.DeregisterNFInstance(ctx, ausfSelf.NfId)
 	if err == nil {
 		return nil, err
 	} else if res != nil {
diff --git a/pkg/factory/config.go b/pkg/factory/config.go
index a24ef32..be0ac0c 100644
--- a/pkg/factory/config.go
+++ b/pkg/factory/config.go
@@ -109,6 +109,13 @@ type Sbi struct {
 	BindingIPv4  string `yaml:"bindingIPv4,omitempty" valid:"host,required"`  // IP used to run the server in the node.
 	Port         int    `yaml:"port,omitempty" valid:"port,required"`
 	Tls          *Tls   `yaml:"tls,omitempty" valid:"optional"`
+	OAuth        bool   `yaml:"oauth,omitempty" valid:"optional"`
+}
+
+func (c *Config) GetOAuth() bool {
+	c.RLock()
+	defer c.RUnlock()
+	return c.Configuration.Sbi.OAuth
 }
 
 func (s *Sbi) validate() (bool, error) {