MongoDB Atlas Vector Search Why Atlas Vector Search Vector Search lives inside MongoDB Atlas alongside your operational data. Kill the ETL: - No separate vector DB to sync. - Vectors and documents are one row; filtering is just a MongoDB query. - Atlas Search index (Lucene) and Vector Search index (hnswlib-derived) are queryable in the same aggregation pipeline. - Managed service — sharding, replication, backups handled by Atlas. Skip it if you are not on Atlas: community MongoDB has no vector search. Use a dedicated vector store instead. Index Definition (JSON) Atlas Vector Search indexes ar…