diff --git a/apps/api/internal/httpapi/gateway_task_creation.go b/apps/api/internal/httpapi/gateway_task_creation.go
new file mode 100644
index 0000000..76b3c7e
--- /dev/null
+++ b/apps/api/internal/httpapi/gateway_task_creation.go
@@ -0,0 +1,68 @@
+package httpapi
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+
+	"github.com/easyai/easyai-ai-gateway/apps/api/internal/auth"
+	"github.com/easyai/easyai-ai-gateway/apps/api/internal/store"
+)
+
+type gatewayTaskCreationStage string
+
+const (
+	gatewayTaskCreationPrepare gatewayTaskCreationStage = "prepare"
+	gatewayTaskCreationStore   gatewayTaskCreationStage = "store"
+)
+
+type gatewayTaskCreationError struct {
+	Stage gatewayTaskCreationStage
+	Err   error
+}
+
+func (e *gatewayTaskCreationError) Error() string {
+	if e == nil || e.Err == nil {
+		return "gateway task creation failed"
+	}
+	return e.Err.Error()
+}
+
+func (e *gatewayTaskCreationError) Unwrap() error {
+	if e == nil {
+		return nil
+	}
+	return e.Err
+}
+
+func (s *Server) prepareAndCreateGatewayTask(
+	ctx context.Context,
+	r *http.Request,
+	user *auth.User,
+	kind string,
+	model string,
+	body map[string]any,
+	async bool,
+) (store.GatewayTask, error) {
+	prepared, err := s.prepareTaskRequest(ctx, r, user, body)
+	if err != nil {
+		return store.GatewayTask{}, &gatewayTaskCreationError{Stage: gatewayTaskCreationPrepare, Err: err}
+	}
+	task, err := s.store.CreateTask(ctx, store.CreateTaskInput{
+		Kind:            kind,
+		Model:           model,
+		RunMode:         runModeFromRequest(prepared.Body),
+		Async:           async,
+		Request:         prepared.Body,
+		ConversationID:  prepared.ConversationID,
+		NewMessageCount: prepared.NewMessageCount,
+		MessageRefs:     prepared.MessageRefs,
+	}, user)
+	if err != nil {
+		return store.GatewayTask{}, &gatewayTaskCreationError{
+			Stage: gatewayTaskCreationStore,
+			Err:   fmt.Errorf("create task: %w", err),
+		}
+	}
+	return task, nil
+}