--- title: "Agent Memory vs. Memory Middleware | Why Surreal | SurrealDB" description: "How Agent Memory compares to Mem0, Zep, Letta, and other memory middleware. The fragmented memory tax and why memory should live in the database." url: https://surrealdb.com/why/vs-memory-middleware --- # Agent Memory vs. memory middleware Mem0, Zep, Letta, and other memory middleware add another layer between your agent and storage. The fragmented memory tax is why memory should live in the database. [Explore Agent Memory](https://surrealdb.com/agent-memory) [Join the early access](https://surrealdb.com/agent-memory/get-started) 1. ![Babcock](https://surrealdb.com/assets/static/babcock.lo4rnVg1.svg) 2. ![ING](https://surrealdb.com/assets/static/ing.X3I6S3_V.svg) 3. ![British Airways](https://surrealdb.com/assets/static/british-airways.KEsZiwV-.svg) 4. ![Nvidia](https://surrealdb.com/assets/static/nvidia.DaIEuMil.svg) 5. ![Apple](https://surrealdb.com/assets/static/apple.D5pq4flY.svg) 6. ![SpaceX](https://surrealdb.com/assets/static/spacex.CQJEk-IL.svg) 7. ![Samsung](https://surrealdb.com/assets/static/samsung.CH-vQgnb.svg) 8. ![adidas](https://surrealdb.com/assets/static/adidas.DdTC5qhk.svg) 9. ![Tencent](https://surrealdb.com/assets/static/tencent.paQmLxyy.svg) 10. ![Alibaba](https://surrealdb.com/assets/static/alibaba.B16idgfM.svg) 11. ![PolyAI](https://surrealdb.com/assets/static/poly-ai.c3w_fAg6.svg) 12. ![Later](https://surrealdb.com/assets/static/later.Ds736jFO.svg) 13. ![Verizon](https://surrealdb.com/assets/static/verizon.BI7CajdX.svg) 14. ![Liberty Mutual](https://surrealdb.com/assets/static/liberty-mutual.B7qOU1pd.svg) 15. ![Walmart](https://surrealdb.com/assets/static/walmart.BjDg_Sr8.svg) 16. ![Carrier](https://surrealdb.com/assets/static/carrier.D21gC6NX.svg) 17. ![Saks Fifth Avenue](https://surrealdb.com/assets/static/saks-fifth-avenue.COIDpLSb.svg) 18. ![San Francisco Compute Company](https://surrealdb.com/assets/static/sfcc.B7jlImq4.svg) 19. ![Shield AI](https://surrealdb.com/assets/static/shield-ai.pINZ0KJr.svg) 20. ![Wix](https://surrealdb.com/assets/static/wix.DvHhmoBi.svg) THE LANDSCAPE ## A growing category with a shared limitation A growing number of agent memory middleware products have emerged. Each solves a real developer pain point, but they all share the same architectural limitation: memory lives outside the database, not inside it. ### Mem0 LLM-driven memory extraction and consolidation with optional graph storage. Excellent developer experience, but built on fragmented infrastructure underneath. ### Zep Long-term memory for assistants with temporal knowledge graphs and entity extraction. Adds structure, but as a separate service with its own consistency model. ### Letta (MemGPT) Self-editing memory framework where agents manage their own context window and long-term storage. Innovative, but memory lives outside the transactional boundary. THE FRAGMENTED MEMORY TAX ## Middleware hides the problem. It doesn't solve it. Memory middleware sits between the agent and the database, introducing consistency gaps, added latency, separate permissions, and operational burden. App state User session Vector DB Embeddings Graph DB Relations Doc store Documents Auth Identity Data fragments at every system boundary Agent Vector DB Graph DB Doc store Auth Total Cumulative latency ### Consistency gaps Writes to memory and writes to state can diverge - no atomicity across systems. ### Latency Every memory operation is a round trip through middleware. Two hops instead of one. ### Operational burden Another service to deploy, monitor, and secure. Another failure mode to manage. ### Separate permissions Memory middleware has its own auth. Your database has its own. Two permission models to keep in sync. THE ALTERNATIVE ## ACID transactions across every data model Agent Memory eliminates the middleware layer entirely. Memory lives in SurrealDB with ACID guarantees, unified permissions, and zero extra infrastructure. ### ACID memory Agent Memory lives in SurrealDB. Agent Memory and application state commit in one transaction - no divergence. ### One permission model RBAC and record-level permissions apply to memory and data alike. One auth, one policy. ### No middleware Agents write directly to the database. One round trip. No extra latency, no extra failure modes. TRUSTED BY ## Enterprise teams building on SurrealDB From knowledge graphs to AI assistants - how enterprise teams are building on SurrealDB. ![Samsung](https://surrealdb.com/assets/static/4c58b81e7b3c9466.C_Hv0eml.svg) DATABASE ### [Unlocking insights with knowledge graphs](https://surrealdb.com/customer/samsung) Samsung Ads uses SurrealDB to build dynamic, real-time knowledge graphs for smarter campaign execution - collapsing three legacy data stores into one. Read case study ![Verizon](https://surrealdb.com/assets/static/18b99996c689000f.B5PQ-nI9.svg) DATABASE ### [AI assistant empowering 10,000 technicians](https://surrealdb.com/customer/verizon) Verizon uses SurrealDB to power a generative AI assistant for 10,000 field technicians, delivering instant access to documentation, outage updates, and workflows. Read case study ![Tencent](https://surrealdb.com/assets/static/401d8346058682c8.DqM87mst.svg) DATABASE ### [Unified infrastructure monitoring](https://surrealdb.com/customer/tencent) Tencent consolidated nine backend tools into one real-time monitoring platform powered by SurrealDB's multi-model context graph. Read case study ![PolyAI](https://surrealdb.com/assets/static/c5fa07c66cd05131.BnC7wHcc.svg) DATABASE ### [High-performance customer service AI powered by RAG](https://surrealdb.com/customer/polyai) PolyAI connects SurrealDB to Agent Studio for low-latency, customer-controlled RAG across voice AI experiences. Read case study ![Saks Fifth Avenue](https://surrealdb.com/assets/static/saks-fifth-avenue-white.pDJ9HGmf.svg) DATABASE ### [AI-powered personalisation at massive scale](https://surrealdb.com/customer/saks) Saks Fifth Avenue uses SurrealDB's vector search and graph capabilities to deliver real-time, AI-powered personalisation across 5 million luxury customers and 45 million monthly product-recommendation queries. Read case study FREQUENTLY ASKED QUESTIONS ## Memory middleware How does Agent Memory differ from Mem0 or Zep? Can I use LangChain or CrewAI with SurrealDB instead of their built-in memory? Does eliminating middleware actually reduce latency? GET STARTED ## Memory without the memory tax Agent Memory eliminates the fragmented memory tax entirely. No middleware, no consistency gaps, no extra infrastructure. ![Samsung](https://surrealdb.com/assets/static/4c58b81e7b3c9466.C_Hv0eml.svg)![NVIDIA](https://surrealdb.com/assets/static/nvidia.DaIEuMil.svg)![Apple](https://surrealdb.com/assets/static/f7dc2519e0d212bc.Cn8MYAK7.svg)![Verizon](https://surrealdb.com/assets/static/18b99996c689000f.B5PQ-nI9.svg)![Tencent](https://surrealdb.com/assets/static/401d8346058682c8.DqM87mst.svg) SOC 2 Type 2 GDPR Cyber Essentials Plus ISO 27001 [Explore Agent Memory](https://surrealdb.com/agent-memory) [Join the early access](https://surrealdb.com/agent-memory/get-started) ```json {"@context":"https://schema.org","@type":"Organization","name":"SurrealDB","url":"https://surrealdb.com","logo":"https://surrealdb.com/assets/static/logo.BG7_TG2b.svg","description":"SurrealDB is the unified data layer for AI. 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Agent Memory is built on SurrealDB, so memory and application data live in one transactional store - no second database to keep in step, and no cross-database consistency gap."}},{"@type":"Question","name":"Can I use LangChain or CrewAI with SurrealDB instead of their built-in memory?","acceptedAnswer":{"@type":"Answer","text":"Yes. SurrealDB integrates with LangChain, LlamaIndex, and any MCP-compatible client. You can replace framework memory modules with Agent Memory for persistent, transactionally consistent memory without changing your orchestration logic."}},{"@type":"Question","name":"Does eliminating middleware actually reduce latency?","acceptedAnswer":{"@type":"Answer","text":"Yes. Memory middleware adds a network hop for every memory operation. With Agent Memory, memory reads and writes happen inside the database - one round trip instead of two. This compounds under load and across multi-agent workflows."}}]} ```