diff --git a/lightrag/api/routers/document_routes.py b/lightrag/api/routers/document_routes.py
index aa5af7e5..955e8753 100644
--- a/lightrag/api/routers/document_routes.py
+++ b/lightrag/api/routers/document_routes.py
@@ -84,22 +84,33 @@ class InsertTextRequest(BaseModel):
 
     Attributes:
         text: The text content to be inserted into the RAG system
+        file_source: Source of the text (optional)
     """
 
     text: str = Field(
         min_length=1,
         description="The text to insert",
     )
-
+    file_source: str = Field(
+        default=None,
+        min_length=0,
+        description="File Source"
+    )
     @field_validator("text", mode="after")
     @classmethod
     def strip_after(cls, text: str) -> str:
         return text.strip()
-
+    
+    @field_validator("file_source", mode="after")
+    @classmethod
+    def strip_after(cls, file_source: str) -> str:
+        return file_source.strip()
+    
     class Config:
         json_schema_extra = {
             "example": {
-                "text": "This is a sample text to be inserted into the RAG system."
+                "text": "This is a sample text to be inserted into the RAG system.",
+                "file_source": "Source of the text (optional)"
             }
         }
 
@@ -109,24 +120,37 @@ class InsertTextsRequest(BaseModel):
 
     Attributes:
         texts: List of text contents to be inserted into the RAG system
+        file_sources: Sources of the texts (optional)
     """
 
     texts: list[str] = Field(
         min_length=1,
         description="The texts to insert",
     )
-
+    file_sources: list[str] = Field(
+        default=None,
+        min_length=0,
+        description="Sources of the texts"
+    )
+    
     @field_validator("texts", mode="after")
     @classmethod
     def strip_after(cls, texts: list[str]) -> list[str]:
         return [text.strip() for text in texts]
-
+    @field_validator("file_sources", mode="after")
+    @classmethod
+    def strip_after(cls, file_sources: list[str]) -> list[str]:
+        return [file_source.strip() for file_source in file_sources]
+    
     class Config:
         json_schema_extra = {
             "example": {
                 "texts": [
                     "This is the first text to be inserted.",
                     "This is the second text to be inserted.",
+                ],
+                "file_sources": [
+                    "First file source (optional)",
                 ]
             }
         }
@@ -656,16 +680,20 @@ async def pipeline_index_files(rag: LightRAG, file_paths: List[Path]):
         logger.error(traceback.format_exc())
 
 
-async def pipeline_index_texts(rag: LightRAG, texts: List[str]):
+async def pipeline_index_texts(rag: LightRAG, texts: List[str],file_sources: List[str]=None):
     """Index a list of texts
 
     Args:
         rag: LightRAG instance
         texts: The texts to index
+        file_sources: Sources of the texts
     """
     if not texts:
         return
-    await rag.apipeline_enqueue_documents(texts)
+    if file_sources is not None:
+        if len(file_sources) != 0 and len(file_sources) != len(texts):
+            [file_sources.append("unknown_source") for _ in range(len(file_sources),len(texts))]
+    await rag.apipeline_enqueue_documents(input=texts,file_paths=file_sources)
     await rag.apipeline_process_enqueue_documents()
 
 
@@ -816,7 +844,7 @@ def create_document_routes(
             HTTPException: If an error occurs during text processing (500).
         """
         try:
-            background_tasks.add_task(pipeline_index_texts, rag, [request.text])
+            background_tasks.add_task(pipeline_index_texts, rag, [request.text],file_sources=[request.file_source])
             return InsertResponse(
                 status="success",
                 message="Text successfully received. Processing will continue in background.",
@@ -851,7 +879,7 @@ def create_document_routes(
             HTTPException: If an error occurs during text processing (500).
         """
         try:
-            background_tasks.add_task(pipeline_index_texts, rag, request.texts)
+            background_tasks.add_task(pipeline_index_texts, rag, request.texts,file_sources=request.file_sources)
             return InsertResponse(
                 status="success",
                 message="Text successfully received. Processing will continue in background.",