diff --git a/modules/structs/auth.go b/modules/structs/auth.go
new file mode 100644
index 0000000000..2ee85a7707
--- /dev/null
+++ b/modules/structs/auth.go
@@ -0,0 +1,13 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package structs
+
+type AuthSourceOption struct {
+	ID                 int64  `json:"id"`
+	AuthenticationName string `json:"authentication_name" binding:"Required"`
+	TypeName           string `json:"type_name"`
+
+	IsActive      bool `json:"is_active"`
+	IsSyncEnabled bool `json:"is_sync_enabled"`
+}
diff --git a/modules/structs/auth_oauth2.go b/modules/structs/auth_oauth2.go
index 7b5ed5d4ef..b23533fade 100644
--- a/modules/structs/auth_oauth2.go
+++ b/modules/structs/auth_oauth2.go
@@ -3,15 +3,6 @@
 
 package structs
 
-type AuthOauth2Option struct {
-	ID                 int64  `json:"id"`
-	AuthenticationName string `json:"authentication_name" binding:"Required"`
-	TypeName           string `json:"type_name"`
-
-	IsActive      bool `json:"is_active"`
-	IsSyncEnabled bool `json:"is_sync_enabled"`
-}
-
 // CreateUserOption create user options
 type CreateAuthOauth2Option struct {
 	AuthenticationName       string `json:"authentication_name" binding:"Required"`
diff --git a/routers/api/v1/admin/auth.go b/routers/api/v1/admin/auth.go
new file mode 100644
index 0000000000..2acfaadc75
--- /dev/null
+++ b/routers/api/v1/admin/auth.go
@@ -0,0 +1,59 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package admin
+
+import (
+	"net/http"
+
+	auth_model "code.gitea.io/gitea/models/auth"
+	"code.gitea.io/gitea/models/db"
+	api "code.gitea.io/gitea/modules/structs"
+	"code.gitea.io/gitea/routers/api/v1/utils"
+	"code.gitea.io/gitea/services/context"
+	"code.gitea.io/gitea/services/convert"
+)
+
+// SearchAuth API for getting information of the configured authentication methods according the filter conditions
+func SearchAuth(ctx *context.APIContext) {
+	// swagger:operation GET /admin/identity-auth admin adminSearchAuth
+	// ---
+	// summary: Search authentication sources
+	// produces:
+	// - application/json
+	// parameters:
+	// - name: page
+	//   in: query
+	//   description: page number of results to return (1-based)
+	//   type: integer
+	// - name: limit
+	//   in: query
+	//   description: page size of results
+	//   type: integer
+	// responses:
+	//   "200":
+	//     description: "SearchResults of authentication sources"
+	//     schema:
+	//       type: array
+	//       items:
+	//         "$ref": "#/definitions/AuthOauth2Option"
+	//   "403":
+	//     "$ref": "#/responses/forbidden"
+
+	listOptions := utils.GetListOptions(ctx)
+
+	authSources, maxResults, err := db.FindAndCount[auth_model.Source](ctx, auth_model.FindSourcesOptions{})
+	if err != nil {
+		ctx.APIErrorInternal(err)
+		return
+	}
+
+	results := make([]*api.AuthSourceOption, len(authSources))
+	for i := range authSources {
+		results[i] = convert.ToOauthProvider(ctx, authSources[i])
+	}
+
+	ctx.SetLinkHeader(int(maxResults), listOptions.PageSize)
+	ctx.SetTotalCountHeader(maxResults)
+	ctx.JSON(http.StatusOK, &results)
+}
diff --git a/routers/api/v1/admin/auth_oauth.go b/routers/api/v1/admin/auth_oauth.go
index c594afa9cf..9bdf4b9556 100644
--- a/routers/api/v1/admin/auth_oauth.go
+++ b/routers/api/v1/admin/auth_oauth.go
@@ -251,13 +251,15 @@ func SearchOauthAuth(ctx *context.APIContext) {
 
 	listOptions := utils.GetListOptions(ctx)
 
-	authSources, maxResults, err := db.FindAndCount[auth_model.Source](ctx, auth_model.FindSourcesOptions{})
+	authSources, maxResults, err := db.FindAndCount[auth_model.Source](ctx, auth_model.FindSourcesOptions{
+		LoginType: auth_model.OAuth2,
+	})
 	if err != nil {
 		ctx.APIErrorInternal(err)
 		return
 	}
 
-	results := make([]*api.AuthOauth2Option, len(authSources))
+	results := make([]*api.AuthSourceOption, len(authSources))
 	for i := range authSources {
 		results[i] = convert.ToOauthProvider(ctx, authSources[i])
 	}
diff --git a/services/convert/auth_oauth.go b/services/convert/auth_oauth.go
index 93f90b0a52..c01b1bdeac 100644
--- a/services/convert/auth_oauth.go
+++ b/services/convert/auth_oauth.go
@@ -11,7 +11,7 @@ import (
 )
 
 // ToOauthProvider convert auth_model.Source≤ to api.AuthOauth2Option
-func ToOauthProvider(ctx context.Context, provider *auth_model.Source) *api.AuthOauth2Option {
+func ToOauthProvider(ctx context.Context, provider *auth_model.Source) *api.AuthSourceOption {
 	if provider == nil {
 		return nil
 	}
@@ -20,16 +20,16 @@ func ToOauthProvider(ctx context.Context, provider *auth_model.Source) *api.Auth
 }
 
 // ToOauthProviders convert list of auth_model.Source to list of api.AuthOauth2Option
-func ToOauthProviders(ctx context.Context, provider []*auth_model.Source) []*api.AuthOauth2Option {
-	result := make([]*api.AuthOauth2Option, len(provider))
+func ToOauthProviders(ctx context.Context, provider []*auth_model.Source) []*api.AuthSourceOption {
+	result := make([]*api.AuthSourceOption, len(provider))
 	for i := range provider {
 		result[i] = ToOauthProvider(ctx, provider[i])
 	}
 	return result
 }
 
-func toOauthProvider(provider *auth_model.Source) *api.AuthOauth2Option {
-	return &api.AuthOauth2Option{
+func toOauthProvider(provider *auth_model.Source) *api.AuthSourceOption {
+	return &api.AuthSourceOption{
 		ID:                 provider.ID,
 		AuthenticationName: provider.Name,
 		TypeName:           provider.Type.String(),