The Best AI Agent Memory Tools in 2026
We researched AI agent memory tools through official websites, including pricing pages, plan tables, and product documentation. Rankings reflect each product’s core memory and retrieval job, value for money, and verified capabilities for persistent context, profiles, episodes, semantic recall, and graphs.
Our top picks
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Top ranked
Cloudflare Agent Memory#1 of 349.2/10A cloud API for scoped, searchable memory across AI agent profiles and conversations.
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Runner-up
Mem0#2 of 348.8/10A flexible memory layer with semantic, graph, and self-hosted deployment options.
Free plan
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Top-ranked free plan
MCP Memory Service#3 of 347.9/10A broad open-source memory layer for teams that can manage deployment and configuration.
Free plan
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. How we rank.
The full ranking 34 tools, best first
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Best forEnterprises wanting proven cloud agent memory
A cloud API for scoped, searchable memory across AI agent profiles and conversations.
- Episodic memory
- User/profile memory
9.2/10★★★★★Visit Cloudflare -
Best forTeams needing broad, compliant memory infrastructure
A flexible memory layer with semantic, graph, and self-hosted deployment options.
- Episodic memory
- User/profile memory
- Graph-based memory
8.8/10★★★★☆Visit Mem0 -
Best forOpen-source teams needing full-stack memory
A broad open-source memory layer for teams that can manage deployment and configuration.
- Episodic memory
- User/profile memory
- Graph-based memory
7.9/10★★★★☆Visit site -
Best forDevelopers needing temporal and reflective memory
A flexible memory layer for agents that need temporal, reflective and graph-aware recall.
- Episodic memory
- User/profile memory
- Graph-based memory
7.8/10★★★★☆Visit Hindsight -
Best forTeams building knowledge-graph agent memory
Graph-based agent memory with cloud or self-hosted deployment and usage pricing.
- User/profile memory
- Graph-based memory
7.7/10★★★★☆Visit Cognee -
Best forProjects needing lifecycle-rich multimodal memory
Lifecycle-rich multimodal memory with APIs, graph storage, and self-hosting.
- Episodic memory
- User/profile memory
- Graph-based memory
7.6/10★★★★☆Visit MemOS -
Best forDevelopers wanting graph memory with profiles
Engrama gives agents graph-based memory, profiles and hybrid retrieval from $19 monthly.
- User/profile memory
- Graph-based memory
7.5/10★★★★☆Visit Engrama -
Best forBusinesses needing governed profile and graph memory
Governed graph and profile memory with APIs, lifecycle controls and self-hosting.
- Episodic memory
- User/profile memory
- Graph-based memory
7.4/10★★★★☆Visit Agents Memory -
Best forTeams with multimodal and connector-heavy needs
A multimodal memory API with connectors, graphs, SDKs and self-hosted deployment.
- Episodic memory
- User/profile memory
- Graph-based memory
7.3/10★★★★☆Visit Supermemory -
Best forEnterprises needing temporal graph governance
A governed graph-memory platform for teams building context-rich AI agents.
- Episodic memory
- User/profile memory
- Graph-based memory
7.2/10★★★★☆Visit Zep -
Best forTeams deploying persistent collaborative agents
Persistent-memory agents with collaboration tools, channels, APIs, and cloud or self-hosted deployment.
7.1/10★★★★☆Visit Letta -
Best forSecurity-focused multi-agent deployments
Security-focused memory for multi-agent systems, with broad interfaces and deployment options.
- Graph-based memory
7.0/10★★★★☆Visit AgenticMem -
Best forTeams wanting hosted graph and episodic memory
Hosted graph and episodic memory with hybrid retrieval and MCP connectivity.
- Episodic memory
- Graph-based memory
6.9/10★★★☆☆Visit Echo Memory -
Best forBudget-conscious users needing rich graph search
A graph-first agent memory system with broad recall methods and a useful free tier.
- Episodic memory
- User/profile memory
- Graph-based memory
6.8/10★★★☆☆Visit Hypermemory -
Best forEnterprises needing explainable memory analytics
Explainable memory infrastructure for production agents, with cloud and self-hosted deployment.
- Episodic memory
- User/profile memory
- Graph-based memory
6.7/10★★★☆☆Visit Memori -
Best forTeams needing causal and counterfactual recall
A causal graph memory layer for agents that need traceable, multi-hop recall.
- Graph-based memory
6.6/10★★★☆☆Visit ReasonGraph -
Best forTeams wanting associative memory feedback loops
Associative agent memory with semantic retrieval, feedback reranking, and MCP access.
- Episodic memory
- User/profile memory
- Graph-based memory
6.5/10★★★☆☆Visit Mnemoverse -
Best forLow-cost hosted memory for small teams
Low-cost hosted memory with search, graphs and context reconstruction.
- Episodic memory
- User/profile memory
- Graph-based memory
6.4/10★★★☆☆Visit Memobase -
Best forDevelopers wanting auditable atom-based memory
An auditable memory backend with scored atoms, semantic retrieval, and MCP connectivity.
- Episodic memory
- User/profile memory
- Graph-based memory
6.3/10★★★☆☆Visit Memory Layer -
Best forSelf-hosters wanting simple structured memory
Open-source, self-hosted memory with structured notes, semantic search, and evolving metadata.
- Graph-based memory
6.2/10★★★☆☆Visit A-MEM -
Best forSelf-hosted agents needing graph and persona memory
A self-hosted memory layer combining entity stores, graphs, personas, and retrieval.
- Episodic memory
- User/profile memory
- Graph-based memory
6.1/10★★★☆☆Visit Memary -
Best forMarkdown-first self-hosted memory workflows
An open-source, Markdown-centered memory system for self-hosted agent workflows.
- Episodic memory
- User/profile memory
- Graph-based memory
6.0/10★★★☆☆Visit ReMe -
Best forPrivate deployments needing multi-language SDKs
Private, multi-language agent memory with hybrid retrieval and MCP connectivity.
- Episodic memory
- User/profile memory
5.9/10★★★☆☆Contact Montycat -
Best forSmall teams wanting inexpensive managed memory
Affordable managed memory with semantic search, agent sharing and self-hosting.
5.8/10★★★☆☆Visit MrMemory -
Best forDevelopers needing sectorized, protected memory
A modular memory engine for LLM applications, with sector-specific embeddings and retrieval.
- Episodic memory
- User/profile memory
- Graph-based memory
5.7/10★★★☆☆Visit OpenMemory -
Best forSolo developers preferring local Markdown memory
Open-source, self-hosted agent memory with Markdown storage and local retrieval.
- Episodic memory
- Graph-based memory
5.6/10★★★☆☆Visit Tigerless -
Best forDevelopers needing auditable temporal memory
An open-source memory system built for inspectable, time-aware agent recall.
- Episodic memory
- Graph-based memory
5.5/10★★★☆☆Explore Mnemic -
Best forOntology-driven self-hosted memory projects
A self-hosted Python library for ontology-driven memory, graph retrieval and contextual recall.
- Graph-based memory
5.4/10★★★☆☆Visit Memonto -
Best forSmall self-hosted apps needing lightweight memory
A self-hosted memory layer for agents that need searchable context across restarts.
- User/profile memory
5.3/10★★★☆☆Visit Memora -
Best forSimple cloud memory APIs for multi-agent apps
A focused cloud memory API with scoped storage, shared namespaces, and SDK support.
- User/profile memory
5.2/10★★★☆☆Visit AgentRAM -
Best forSmall teams wanting straightforward hosted recall
Hosted memory API with semantic recall, direct writes and a free monthly tier.
- User/profile memory
5.1/10★★★☆☆Visit WithMemory -
Best forSolo developers capturing detailed agent sessions
A self-hosted memory runtime that captures agent sessions and recalls context across tools.
- Episodic memory
- Graph-based memory
5.0/10★★☆☆☆Visit agentmemory -
Best forSelf-hosters wanting hierarchical conversation memory
A self-hosted memory layer for agents needing structured, retrievable conversation context.
- Episodic memory
- User/profile memory
4.9/10★★☆☆☆Visit MemoryOS -
Best forLangGraph users needing open-source memory primitives
A focused LangGraph and CrewAI toolkit for adding structured, persistent agent memory.
- Episodic memory
- User/profile memory
4.8/10★★☆☆☆Visit LangMem
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Semantic memory | Episodic memory | User/profile memory | Graph-based memory | Deployment options | Score |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Cloudflare Agent Memory | — | None | Yes | Yes | Yes | — | Cloud | 9.2 |
| 2 | Mem0 | Yes | $19/mo | Yes | Yes | Yes | Yes | Both | 8.8 |
| 3 | MCP Memory Service | Yes | None | Yes | Yes | Yes | Yes | Both | 7.9 |
| 4 | Hindsight | Yes | — | Yes | Yes | Yes | Yes | Both | 7.8 |
| 5 | Cognee | Yes | $1/unit usage-based | Yes | — | Yes | Yes | Both | 7.7 |
| 6 | MemOS | Yes | $19/mo | Yes | Yes | Yes | Yes | Both | 7.6 |
| 7 | Engrama | Yes | $19/mo | Yes | — | Yes | Yes | Both | 7.5 |
| 8 | Agents Memory | Yes | — | Yes | Yes | Yes | Yes | Both | 7.4 |
| 9 | Supermemory | Yes | $19/mo | Yes | Yes | Yes | Yes | Both | 7.3 |
| 10 | Zep | Yes | $125/mo | Yes | Yes | Yes | Yes | Both | 7.2 |
| 11 | Letta | Yes | $20/mo | — | — | — | — | — | 7.1 |
| 12 | AgenticMem | Yes | — | Yes | — | — | Yes | Both | 7.0 |
| 13 | Echo Memory | Yes | $149/mo | Yes | Yes | — | Yes | Both | 6.9 |
| 14 | Hypermemory | Yes | $12/mo | Yes | Yes | Yes | Yes | Cloud | 6.8 |
| 15 | Memori | Yes | — | Yes | Yes | Yes | Yes | Both | 6.7 |
| 16 | ReasonGraph Cloud | Yes | €29/mo | Yes | — | — | Yes | Both | 6.6 |
| 17 | Mnemoverse | Yes | $29/mo | Yes | Yes | Yes | Yes | Both | 6.5 |
| 18 | Memobase | Yes | $9/mo | Yes | Yes | Yes | Yes | Cloud | 6.4 |
| 19 | Memory Layer | Yes | None | Yes | Yes | Yes | Yes | Both | 6.3 |
| 20 | A-MEM | Yes | None | Yes | — | — | Yes | Self_hosted | 6.2 |
| 21 | Memary | Yes | None | Yes | Yes | Yes | Yes | Self_hosted | 6.1 |
| 22 | ReMe | — | None | Yes | Yes | Yes | Yes | Self_hosted | 6.0 |
| 23 | Montycat AI Memory | — | — | Yes | Yes | Yes | No | Self_hosted | 5.9 |
| 24 | MrMemory | No | $5/mo | Yes | — | — | — | Both | 5.8 |
| 25 | OpenMemory | No | None | Yes | Yes | Yes | Yes | Both | 5.7 |
| 26 | Tigerless agent-memory | Yes | None | Yes | Yes | — | Yes | Self_hosted | 5.6 |
| 27 | Mnemic | — | None | — | Yes | — | Yes | Self_hosted | 5.5 |
| 28 | Memonto | — | None | Yes | — | — | Yes | Self_hosted | 5.4 |
| 29 | Memora | — | None | Yes | — | Yes | — | Self_hosted | 5.3 |
| 30 | AgentRAM | Yes | — | No | — | Yes | No | Cloud | 5.2 |
| 31 | WithMemory | Yes | $9/mo | Yes | — | Yes | — | Cloud | 5.1 |
| 32 | agentmemory | Yes | None | Yes | Yes | — | Yes | Self_hosted | 5.0 |
| 33 | MemoryOS | — | None | Yes | Yes | Yes | — | Self_hosted | 4.9 |
| 34 | LangMem | Yes | None | Yes | Yes | Yes | — | Both | 4.8 |
Head-to-head All 28 comparisons →
- Cloudflare Agent Memory vs Mem0
- Cloudflare Agent Memory vs MCP Memory Service
- Cloudflare Agent Memory vs Hindsight
- Cloudflare Agent Memory vs Cognee
- Cloudflare Agent Memory vs MemOS
- Cloudflare Agent Memory vs Engrama
- Cloudflare Agent Memory vs Agents Memory
- Mem0 vs MCP Memory Service
- Mem0 vs Hindsight
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How we rank AI agent memory tools
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update