diff --git a/internal/materialindex/pipeline.go b/internal/materialindex/pipeline.go
index 8cf895a9..8ed71555 100644
--- a/internal/materialindex/pipeline.go
+++ b/internal/materialindex/pipeline.go
@@ -125,6 +125,12 @@ func (p *Pipeline) Enabled() bool {
 	return p != nil && p.client != nil && p.client.Enabled()
 }
 
+// HasStore reports whether parse state persists (PostgreSQL available).
+// Without a store, async parse would hit the live API with no state machine.
+func (p *Pipeline) HasStore() bool {
+	return p != nil && p.pool != nil
+}
+
 // FulltextMaxBytes returns the hybrid injection threshold.
 func (p *Pipeline) FulltextMaxBytes() int {
 	if p == nil || p.fullMax <= 0 {
@@ -267,7 +273,7 @@ func (p *Pipeline) EnsureParsed(ctx context.Context, fileName string, blobSHA st
 
 // EnqueueAsync starts background parse without blocking the caller.
 func (p *Pipeline) EnqueueAsync(fileName string, blobSHA string, data []byte, projectID int64) {
-	if p == nil || !p.Enabled() || !mineru.SupportsExt(fileName) || blobSHA == "" || len(data) == 0 {
+	if p == nil || !p.Enabled() || !p.HasStore() || !mineru.SupportsExt(fileName) || blobSHA == "" || len(data) == 0 {
 		return
 	}
 	go func() {
diff --git a/internal/server/asset_handlers.go b/internal/server/asset_handlers.go
index 106acb93..5efed070 100644
--- a/internal/server/asset_handlers.go
+++ b/internal/server/asset_handlers.go
@@ -84,7 +84,7 @@ func (s *Server) handleUploadProjectAsset(w http.ResponseWriter, r *http.Request
 	}
 
 	parseState := ""
-	if matIdx := bizdev.Snapshot(s.svc).MaterialIndex; matIdx != nil && matIdx.Enabled() {
+	if matIdx := bizdev.Snapshot(s.svc).MaterialIndex; matIdx != nil && matIdx.Enabled() && matIdx.HasStore() {
 		if mineru.SupportsExt(ref.FileName) {
 			matIdx.EnqueueAsync(ref.FileName, ref.BlobSHA256, data, projectID)
 			// Report the real state: same-content uploads hit an existing parse
@@ -141,7 +141,7 @@ func (s *Server) handleReparseProjectAsset(w http.ResponseWriter, r *http.Reques
 		return
 	}
 	matIdx := bizdev.Snapshot(s.svc).MaterialIndex
-	if matIdx == nil || !matIdx.Enabled() {
+	if matIdx == nil || !matIdx.Enabled() || !matIdx.HasStore() {
 		writeSafeError(w, r, http.StatusServiceUnavailable, "parse engine unavailable")
 		return
 	}
@@ -225,7 +225,7 @@ func (s *Server) handleListProjectAssets(w http.ResponseWriter, r *http.Request)
 			// 内容已入库但从未触发解析（如早于 MinerU 接入的历史资产）：
 			// 列表读取时自动补触发，前端轮询即可看到 pending→running→done。
 			seenSHA[ref.BlobSHA256] = true
-			if matIdx := bizdev.Snapshot(s.svc).MaterialIndex; matIdx != nil && matIdx.Enabled() && mineru.SupportsExt(ref.FileName) {
+			if matIdx := bizdev.Snapshot(s.svc).MaterialIndex; matIdx != nil && matIdx.Enabled() && matIdx.HasStore() && mineru.SupportsExt(ref.FileName) {
 				if data, _, err := cas.ReadRefBytes(r.Context(), ref.ID); err == nil {
 					matIdx.EnqueueAsync(ref.FileName, ref.BlobSHA256, data, projectID)
 					item.ParseState = "pending"