MongoDB Atlas Vector Search
https://www.mongodb.com/products/platform/atlas-vector-search
Agent memory store for both short-term (document) and long-term (vector). LangGraph checkpointer for stateful agents. Vector search extended to Community Edition (Sept 2025).
Active · Verified 2026-10-26 · fresh as of 2026-10-26 · 49 cited facts, 4 with a third-party source · 1 recorded change · Suggest a correction
At a glance
- Type
- Vector embedded in document DB vendor fix
- Tier
- T1
- Section
- Vector-database infrastructure
- Latest release
- not applicable — not OSS fix
- License
- not applicable — not OSS fix
- GitHub
- not applicable — no GitHub repo fix
- Pricing
- Pay-per-use vendor fix
- Funding
- $311M VC pre-IPO; IPO 2017 NASDAQ:MDB; revenue $2.46B FY2026 third-party fix
- Freshness
- 2026-10-26 fix
- Layer
- model-infra repo fix
- Licensing
- commercial vendor fix
- SDK languages
- csharp, go, java, kotlin, php, python, ruby, rust, typescript vendor fix
- Protocols
- mcp-server vendor fix
When to use
Optimised for: low-latency similarity search + scale
Anti-fit: not for relational / graph-heavy queries (vector-first by design)
Pros & cons
Pros
Vector search inside the database your app already uses — eliminates a separate vector DB for many MongoDB-shop architectures.
Cons
Vector index quality lags dedicated engines on benchmark recall; pricing tied to Atlas tier.
Claims & capabilities
Converged document + vector store for agentic RAG.
Technical surface
- API surface
- MongoDB wire protocol, REST (Atlas Data API), SDK: many languages
- Backend storage
- MongoDB (with Lucene-based vector index)
- Deployment
- Both (self-hosted + managed cloud) — Atlas managed; Atlas Local deployments with vector search (auto-embedding via Voyage AI)
- Embedding model
- BYO
- Multi-tenancy
- Project/cluster/database isolation; dedicated cluster tier; PrivateLink; JWT-based tenant scoping for multi-tenant apps
- MCP
- yes — official mongodb-js/mongodb-mcp-server (Apache-2.0)
- A2A
- no Google A2A (Agent2Agent) integration documented as of 2026-05.
- OpenTelemetry
- first-class — Atlas + OTel
Alternatives to MongoDB Atlas Vector Search → live options ranked by shared design, licence, hosting and MCP support
Similar systems
Other vector-database infrastructure in the catalog, ranked by inbound references.
- Qdrant T1
Distribution-Based Score Fusion + RRF. Sparse vectors native; filtering via ANN graph modification.
- Chroma T1
Limited native hybrid (users build RRF custom). Fast Rust core (v2.5). Acquired by Replit (definitive agreement announced 2026-10-23); Chroma Cloud is winding down (writes disabled 2026-11-22, reads disabled 2026-12-22) while open-source ChromaDB continues under Apache-2.0.
- pgvector T1
Stores embeddings alongside relational + full-text data. HNSW + IVFFlat ANN indexes. Used as agent conversation memory via LangChain + MCP. Foundation of Supabase AI and many self-hosted RAG stacks.
- Weaviate T1
Hybrid Search 2.0 with learned ranking. BM25 + vector in unified index.
- Milvus T1
Multi-vector columns (10 simultaneous). Native hybrid search (v2.5). CAGRA + Vamana GPU/CPU (v2.6).
- Pinecone T1
Managed vector DB. Cascading sparse + dense + rerank pipeline; pinecone-rerank-v0 .
Sources (48 cited facts, 4 third-party)
Each fact links to the page it came from; the badge says who published it (how to read sources).
- What it is Vector embedded in document DB vendor
- What it does & what's distinct Agent memory store for both short-term (document) and long-term (vector). LangGraph chec… vendor
- Claims / benefits Converged document + vector store for agentic RAG. vendor
- Modalities text vendor
- Created 2016 third-party
- Mindshare 2 inbound vendor
- Funding $311M VC pre-IPO; IPO 2017 NASDAQ:MDB; revenue $2.46B FY2026 third-party
- Customers / scale 65200+ total customers as of FY2026 third-party
- Pricing Pay-per-use vendor
- Compliance SOC 2 Type II; ISO 27001; ISO 27017; ISO 27018; HIPAA; FedRAMP (Atlas Gov); PCI-DSS; GDP… vendor
- Data handling Never trains on customer data vendor
- Deployment Both (self-hosted + managed cloud) — Atlas managed; Atlas Local deployments with vector … repo
- HQ US vendor
- Founders / pedigree Dwight Merriman (co-founder), Kevin P. Ryan (co-founder), Eliot Horowitz (CTO/co-founder) third-party
- Memory volume / scale no scale claim vendor
- Performance No public ANN-Benchmarks entry; vendor reports parity with dedicated vector DBs at <10M … vendor
- API surface MongoDB wire protocol, REST (Atlas Data API), SDK: many languages vendor
- Backend storage MongoDB (with Lucene-based vector index) vendor
- Multi-tenancy Project/cluster/database isolation; dedicated cluster tier; PrivateLink; JWT-based tenan… vendor
- Encryption AES-256 at rest, TLS in transit; CMEK via AWS KMS / Azure Key Vault / GCP Cloud KMS usin… vendor
- SSO / RBAC SSO + RBAC vendor
- Embedding model BYO vendor
- Consistency eventual vendor
- Versioning snapshots vendor
- Tombstoning hard-delete supported vendor
- Schema evolution free-form / no schema vendor
- Namespace primitives per-tenant vendor
- Contradiction handling always overwrite (last-write-wins) vendor
- Forgetting policy TTL-based vendor
- MCP support yes — official mongodb-js/mongodb-mcp-server (Apache-2.0) repo
- OTel first-class — Atlas + OTel vendor
- Webhooks / events Atlas Triggers + Webhooks vendor
- Import / export BSON, JSON, mongodump/restore vendor
- Validated verticals RAG developers, agent builders (broad horizontal); financial-services, healthcare, legal… vendor
- Time to running <10min (managed cloud) to <1hr (self-host Docker) vendor
- Anti-fit not for relational / graph-heavy queries (vector-first by design) vendor
- Optimised for low-latency similarity search + scale vendor
- Adjacent infrastructure BYO embedding model + LLM; this IS the vector store vendor
- Pros Vector search inside the database your app already uses — eliminates a separate vector D… vendor
- Cons Vector index quality lags dedicated engines on benchmark recall; pricing tied to Atlas t… vendor
- Project & sources Atlas Vector Search vendor
- architecture-deployment-locus hybrid vendor
- licensing-bucket commercial vendor
- positioning-platform-vs-product platform vendor
- taxonomy-three-layer-rollup model-infra repo
- compliance-certifications csa-star,fedramp,gdpr,hipaa,hitrust,iso27001,iso27017,iso27018,pci-dss vendor
- sdk-languages csharp,go,java,kotlin,php,python,ruby,rust,typescript vendor
- protocol-support mcp-server vendor
What changed
Changes to this record's lifecycle, licence, release, pricing and hosting facts, from the catalog's git history. Subscribe (Atom)
- 2026-10-26
- Deployment “Managed-only” → “Both (self-hosted + managed cloud) — Atlas managed; Atlas Local deployments with vector search (auto-embedding via Voyage AI)” source
- MCP support “via official adapter — MongoDB MCP server” → “yes — official mongodb-js/mongodb-mcp-server (Apache-2.0)” source
Related systems
References (29)
- Agency Swarm integrates with — MongoDB's Atlas AI Integrations page lists Agency Swarm as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Arcade.dev integrates with — MongoDB's Atlas AI Integrations page lists Arcade.dev as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- AutoGen / AG2 integrates with — MongoDB's Atlas AI Integrations page lists AutoGen / AG2 as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Burr (DAGWorks) integrates with — MongoDB's Atlas AI Integrations page lists Burr (DAGWorks) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Claude Agent SDK integrates with — MongoDB's Atlas AI Integrations page lists Claude Agent SDK as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- CrewAI integrates with — MongoDB's Atlas AI Integrations page lists CrewAI as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Dify integrates with — MongoDB's Atlas AI Integrations page lists Dify as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Flowise Memory integrates with — MongoDB's Atlas AI Integrations page lists Flowise Memory as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Google Agent Development Kit (ADK) integrates with — MongoDB's Atlas AI Integrations page lists Google Agent Development Kit (ADK) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Haystack (framework) integrates with — MongoDB's Atlas AI Integrations page lists Haystack (framework) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- LangChain (framework) integrates with — MongoDB's Atlas AI Integrations page lists LangChain (framework) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Langflow integrates with — MongoDB's Atlas AI Integrations page lists Langflow as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- LangGraph (orchestration) integrates with — MongoDB's Atlas AI Integrations page lists LangGraph (orchestration) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- LangGraph Persistence integrates with — LangGraph checkpointer for stateful agents.
- LlamaIndex (framework) integrates with — MongoDB's Atlas AI Integrations page lists LlamaIndex (framework) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Mastra integrates with — MongoDB's Atlas AI Integrations page lists Mastra as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Mem0 integrates with — MongoDB's Atlas AI Integrations page lists Mem0 as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Memori integrates with — MongoDB's Atlas AI Integrations page lists Memori as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Microsoft Agent Framework integrates with — MongoDB's Atlas AI Integrations page lists Microsoft Agent Framework as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Microsoft Semantic Kernel integrates with — MongoDB's Atlas AI Integrations page lists Microsoft Semantic Kernel as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- n8n (AI agent flows) integrates with — MongoDB's Atlas AI Integrations page lists n8n (AI agent flows) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- OpenAI Agents SDK integrates with — MongoDB's Atlas AI Integrations page lists OpenAI Agents SDK as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Phidata (now Agno) integrates with — MongoDB's Atlas AI Integrations page lists Phidata as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Portkey AI integrates with — MongoDB's Atlas AI Integrations page lists Portkey AI as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Pydantic-AI integrates with — MongoDB's Atlas AI Integrations page lists Pydantic-AI as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Spring AI ChatMemory integrates with — MongoDB's Atlas AI Integrations page lists Spring AI ChatMemory as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Strands Agents (AWS) integrates with — MongoDB's Atlas AI Integrations page lists Strands Agents (AWS) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Vercel AI SDK integrates with — MongoDB's Atlas AI Integrations page lists Vercel AI SDK as an integration (some entries are marked community-maintained). (verified 2026-10-29)
- Voyage AI (MongoDB) integrates with — MongoDB's Atlas AI Integrations page lists Voyage AI (MongoDB) as an integration (some entries are marked community-maintained). (verified 2026-10-29)
Referenced by (15)
- Cohere Embed integrates with — Cohere docs "Integrating Embedding Models with Other Tools": MongoDB and Cohere guide. (verified 2026-10-29)
- CrewAI integrates with — CrewAI docs have a MongoDB vector search tool page. (verified 2026-10-29)
- Haystack (framework) integrates with — Haystack integrations directory has a MongoDB integration page ("Use a MongoDB Atlas database with Haystack"). (verified 2026-10-29)
- LangChain (framework) integrates with — LangChain docs have a MongoDB integration provider page (Document-based NoSQL database platform). (verified 2026-10-29)
- Langflow integrates with — Langflow components bundle: MongoDB Atlas vector store component. (verified 2026-10-29)
- LangGraph (orchestration) integrates with — LangGraph checkpointer and long-term memory store docs list MongoDB (langgraph-checkpoint-mongodb, langgraph-store-mongodb) with an Atlas memory guide. (verified 2026-10-29)
- LangGraph Persistence builds on — Postgres / Mongo / Redis stores for production.
- LiteLLM integrates with — LiteLLM docs have a MongoDB vector stores provider page. (verified 2026-10-29)
- LlamaIndex (framework) integrates with — LlamaIndex has an official vector store integration package llama-index-vector-stores-mongodb in its repo. (verified 2026-10-29)
- Mastra integrates with — Mastra repo ships the @mastra/mongodb store package. (verified 2026-10-29)
- Mem0 integrates with — Mem0 docs have a MongoDB vector store page for Mem0 open source. (verified 2026-10-29)
- Microsoft Semantic Kernel integrates with — Semantic Kernel docs list an out-of-the-box MongoDB vector store connector. (verified 2026-10-29)
- n8n (AI agent flows) integrates with — n8n built-in AI cluster node: MongoDB Atlas Vector Store node. (verified 2026-10-29)
- n8n AI Agent Memory integrates with — vector store nodes (Qdrant, Pinecone, MongoDB Atlas) for semantic recall
- Phidata (now Agno) integrates with — Agno ships a mongodb vector DB integration module (agno.vectordb.mongodb). (verified 2026-10-29)