diff --git a/cmd/registry/main.go b/cmd/registry/main.go
index 53ba0d2..c86a50b 100644
--- a/cmd/registry/main.go
+++ b/cmd/registry/main.go
@@ -74,18 +74,6 @@ func main() {
 	// Initialize authentication services
 	authService := auth.NewAuthService(cfg)
 
-	if cfg.RequireAuth {
-		log.Println("Authentication is required for package publishing")
-
-		if cfg.GithubClientID == "" || cfg.GithubClientSecret == "" {
-			log.Println("Warning: GitHub OAuth credentials not configured but authentication is required")
-		} else {
-			log.Println("GitHub OAuth authentication is configured")
-		}
-	} else {
-		log.Println("Authentication is optional for package publishing")
-	}
-
 	// Initialize HTTP server
 	server := api.NewServer(cfg, registryService, authService)
 
diff --git a/internal/api/handlers/v0/publish.go b/internal/api/handlers/v0/publish.go
index 009d664..8d8f066 100644
--- a/internal/api/handlers/v0/publish.go
+++ b/internal/api/handlers/v0/publish.go
@@ -65,9 +65,20 @@ func PublishHandler(registry service.RegistryService, authService auth.Service)
 			token = authHeader[7:]
 		}
 
+		// Determine authentication method based on server name prefix
+		var authMethod model.AuthMethod
+		switch {
+		case strings.HasPrefix(serverDetail.Name, "io.github"):
+			authMethod = model.AuthMethodGitHub
+		// Additional cases can be added here for other prefixes
+		default:
+			// Keep the default auth method as AuthMethodNone
+			authMethod = model.AuthMethodNone
+		}
+
 		// Setup authentication info
 		a := model.Authentication{
-			Method:  model.AuthMethodGitHub,
+			Method:  authMethod,
 			Token:   token,
 			RepoRef: serverDetail.Name,
 		}
diff --git a/internal/auth/service.go b/internal/auth/service.go
index a46c91a..54a9f01 100644
--- a/internal/auth/service.go
+++ b/internal/auth/service.go
@@ -39,11 +39,6 @@ func (s *AuthServiceImpl) CheckAuthStatus(ctx context.Context, statusToken strin
 
 // ValidateAuth validates authentication credentials
 func (s *AuthServiceImpl) ValidateAuth(ctx context.Context, auth model.Authentication) (bool, error) {
-	// If authentication is not required, allow access
-	if !s.config.RequireAuth {
-		return true, nil
-	}
-
 	// If authentication is required but not provided
 	if auth.Method == "" || auth.Method == model.AuthMethodNone {
 		return false, ErrAuthRequired
diff --git a/internal/config/config.go b/internal/config/config.go
index a6139f9..e4f559e 100644
--- a/internal/config/config.go
+++ b/internal/config/config.go
@@ -17,7 +17,6 @@ type Config struct {
 	// GitHub OAuth settings
 	GithubClientID     string `env:"GITHUB_CLIENT_ID" envDefault:""`
 	GithubClientSecret string `env:"GITHUB_CLIENT_SECRET" envDefault:""`
-	RequireAuth        bool   `env:"REQUIRE_AUTH" envDefault:"false"` // Whether to require authentication for publishing
 }
 
 // NewConfig creates a new configuration with default values