diff --git a/libs/langchain-mongodb/langchain_mongodb/chat_message_histories.py b/libs/langchain-mongodb/langchain_mongodb/chat_message_histories.py
index 24bb3852..1e4a6e40 100644
--- a/libs/langchain-mongodb/langchain_mongodb/chat_message_histories.py
+++ b/libs/langchain-mongodb/langchain_mongodb/chat_message_histories.py
@@ -1,5 +1,6 @@
 import json
 import logging
+from importlib.metadata import version
 from typing import Dict, List, Optional
 
 from langchain_core.chat_history import BaseChatMessageHistory
@@ -9,6 +10,7 @@
     messages_from_dict,
 )
 from pymongo import MongoClient, errors
+from pymongo.driver_info import DriverInfo
 
 logger = logging.getLogger(__name__)
 
@@ -112,7 +114,12 @@ def __init__(
             self.client = client
         elif connection_string:
             try:
-                self.client = MongoClient(connection_string)
+                self.client = MongoClient(
+                    connection_string,
+                    driver=DriverInfo(
+                        name="Langchain", version=version("langchain-mongodb")
+                    ),
+                )
             except errors.ConnectionFailure as error:
                 logger.error(error)
         else:
diff --git a/libs/langchain-mongodb/langchain_mongodb/indexes.py b/libs/langchain-mongodb/langchain_mongodb/indexes.py
index 64cf63e1..d422c937 100644
--- a/libs/langchain-mongodb/langchain_mongodb/indexes.py
+++ b/libs/langchain-mongodb/langchain_mongodb/indexes.py
@@ -3,12 +3,14 @@
 
 import functools
 import warnings
+from importlib.metadata import version
 from typing import Any, Dict, List, Optional, Sequence
 
 from langchain_core.indexing.base import RecordManager
 from langchain_core.runnables.config import run_in_executor
 from pymongo import MongoClient
 from pymongo.collection import Collection
+from pymongo.driver_info import DriverInfo
 from pymongo.errors import OperationFailure
 
 
@@ -47,7 +49,10 @@ def from_connection_string(
         Returns:
             A new MongoDBRecordManager instance.
         """
-        client: MongoClient = MongoClient(connection_string)
+        client: MongoClient = MongoClient(
+            connection_string,
+            driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
+        )
         db_name, collection_name = namespace.split(".")
         collection = client[db_name][collection_name]
         return cls(collection=collection)
diff --git a/libs/langchain-mongodb/langchain_mongodb/loaders.py b/libs/langchain-mongodb/langchain_mongodb/loaders.py
index 3c4e5ac8..0112dacc 100644
--- a/libs/langchain-mongodb/langchain_mongodb/loaders.py
+++ b/libs/langchain-mongodb/langchain_mongodb/loaders.py
@@ -2,6 +2,7 @@
 from __future__ import annotations
 
 import logging
+from importlib.metadata import version
 from typing import Dict, List, Optional, Sequence
 
 from langchain_community.document_loaders.base import BaseLoader
@@ -9,6 +10,7 @@
 from langchain_core.runnables.config import run_in_executor
 from pymongo import MongoClient
 from pymongo.collection import Collection
+from pymongo.driver_info import DriverInfo
 
 logger = logging.getLogger(__name__)
 
@@ -80,7 +82,10 @@ def from_connection_string(
             include_db_collection_in_metadata (bool): Flag to include database and
             collection names in metadata.
         """
-        client = MongoClient(connection_string)
+        client = MongoClient(
+            connection_string,
+            driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
+        )
         collection = client[db_name][collection_name]
         return MongoDBLoader(
             collection,
diff --git a/libs/langchain-mongodb/langchain_mongodb/retrievers/parent_document.py b/libs/langchain-mongodb/langchain_mongodb/retrievers/parent_document.py
index 0f475c48..5b5ffe94 100644
--- a/libs/langchain-mongodb/langchain_mongodb/retrievers/parent_document.py
+++ b/libs/langchain-mongodb/langchain_mongodb/retrievers/parent_document.py
@@ -168,7 +168,7 @@ def from_connection_string(
         """
         client: MongoClient = MongoClient(
             connection_string,
-            driver=DriverInfo(name="langchain", version=version("langchain-mongodb")),
+            driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
         )
         collection = client[database_name][collection_name]
         vectorstore = MongoDBAtlasVectorSearch(
diff --git a/libs/langchain-mongodb/langchain_mongodb/vectorstores.py b/libs/langchain-mongodb/langchain_mongodb/vectorstores.py
index 58271130..6d816b1b 100644
--- a/libs/langchain-mongodb/langchain_mongodb/vectorstores.py
+++ b/libs/langchain-mongodb/langchain_mongodb/vectorstores.py
@@ -79,7 +79,7 @@ class MongoDBAtlasVectorSearch(VectorStore):
         .. code-block:: python
 
             import getpass
-            MONGODB_ATLAS_CLUSTER_URI = getpass.getpass("MongoDB Atlas Cluster URI:")
+            MONGODB_ATLAS_CONNECTION_STRING = getpass.getpass("MongoDB Atlas Connection String:")
 
     Key init args — indexing params:
         embedding: Embeddings
@@ -99,20 +99,11 @@ class MongoDBAtlasVectorSearch(VectorStore):
             from pymongo import MongoClient
             from langchain_openai import OpenAIEmbeddings
 
-            # initialize MongoDB python client
-            client = MongoClient(MONGODB_ATLAS_CLUSTER_URI)
-
-            DB_NAME = "langchain_test_db"
-            COLLECTION_NAME = "langchain_test_vectorstores"
-            ATLAS_VECTOR_SEARCH_INDEX_NAME = "langchain-test-index-vectorstores"
-
-            MONGODB_COLLECTION = client[DB_NAME][COLLECTION_NAME]
-
-            vector_store = MongoDBAtlasVectorSearch(
-                collection=MONGODB_COLLECTION,
+            vector_store = MongoDBAtlasVectorSearch.from_connection_string(
+                connection_string=os=MONGODB_ATLAS_CONNECTION_STRING,
+                namespace="db_name.collection_name",
                 embedding=OpenAIEmbeddings(),
-                index_name=ATLAS_VECTOR_SEARCH_INDEX_NAME,
-                relevance_score_fn="cosine",
+                index_name="vector_index",
             )
 
     Add Documents:
@@ -279,7 +270,7 @@ def from_connection_string(
         """
         client: MongoClient = MongoClient(
             connection_string,
-            driver=DriverInfo(name="Langchain", version=version("langchain")),
+            driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
         )
         db_name, collection_name = namespace.split(".")
         collection = client[db_name][collection_name]
diff --git a/libs/langchain-mongodb/tests/integration_tests/test_parent_document.py b/libs/langchain-mongodb/tests/integration_tests/test_parent_document.py
index 57a8a537..5307a8e4 100644
--- a/libs/langchain-mongodb/tests/integration_tests/test_parent_document.py
+++ b/libs/langchain-mongodb/tests/integration_tests/test_parent_document.py
@@ -33,7 +33,7 @@ def test_1clxn_retriever(
     # Setup
     client: MongoClient = MongoClient(
         connection_string,
-        driver=DriverInfo(name="langchain", version=version("langchain-mongodb")),
+        driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
     )
     db = client[DB_NAME]
     combined_clxn = db[COLLECTION_NAME]
diff --git a/libs/langchain-mongodb/tests/unit_tests/test_chat_message_histories.py b/libs/langchain-mongodb/tests/unit_tests/test_chat_message_histories.py
index fd4e2f8b..355ad83a 100644
--- a/libs/langchain-mongodb/tests/unit_tests/test_chat_message_histories.py
+++ b/libs/langchain-mongodb/tests/unit_tests/test_chat_message_histories.py
@@ -1,9 +1,11 @@
 import json
+from importlib.metadata import version
 
 import mongomock
 import pytest
 from langchain.memory import ConversationBufferMemory  # type: ignore[import-not-found]
 from langchain_core.messages import message_to_dict
+from pymongo.driver_info import DriverInfo
 from pytest_mock import MockerFixture
 
 from langchain_mongodb.chat_message_histories import MongoDBChatMessageHistory
@@ -59,7 +61,10 @@ def test_init_with_connection_string(mocker: MockerFixture) -> None:
         collection_name="test-collection",
     )
 
-    mock_mongo_client.assert_called_once_with("mongodb://localhost:27017/")
+    mock_mongo_client.assert_called_once_with(
+        "mongodb://localhost:27017/",
+        driver=DriverInfo(name="Langchain", version=version("langchain-mongodb")),
+    )
     assert history.session_id == "test-session"
     assert history.database_name == "test-database"
     assert history.collection_name == "test-collection"
diff --git a/libs/langgraph-checkpoint-mongodb/langgraph/checkpoint/mongodb/saver.py b/libs/langgraph-checkpoint-mongodb/langgraph/checkpoint/mongodb/saver.py
index 98039430..d8b2c327 100644
--- a/libs/langgraph-checkpoint-mongodb/langgraph/checkpoint/mongodb/saver.py
+++ b/libs/langgraph-checkpoint-mongodb/langgraph/checkpoint/mongodb/saver.py
@@ -1,5 +1,6 @@
 from collections.abc import Iterator, Sequence
 from contextlib import contextmanager
+from importlib.metadata import version
 from typing import (
     Any,
     Optional,
@@ -8,6 +9,7 @@
 from langchain_core.runnables import RunnableConfig
 from pymongo import MongoClient, UpdateOne
 from pymongo.database import Database as MongoDatabase
+from pymongo.driver_info import DriverInfo
 
 from langgraph.checkpoint.base import (
     WRITES_IDX_MAP,
@@ -88,7 +90,12 @@ def from_conn_string(
         """
         client: Optional[MongoClient] = None
         try:
-            client = MongoClient(conn_string)
+            client = MongoClient(
+                conn_string,
+                driver=DriverInfo(
+                    name="Langgraph", version=version("langgraph-checkpoint-mongodb")
+                ),
+            )
             yield MongoDBSaver(
                 client,
                 db_name,