# Mem0 review (2026): is the free plan enough? > Memory layer that lets AI agents remember across sessions Checked Nov 12, 2026 ยท graded Nov 12, 2026 by ToolGPA. Mem0 is a memory service for AI agents and apps. Developers add conversation messages through an SDK or API, and Mem0 stores condensed memories per user that the agent can search in later sessions. It is offered as a hosted platform and as an open-source version that runs on your own servers. - **Category:** AI Agents - **Made by:** Mem0 - **Website:** https://mem0.ai - **Runs on:** Web - **Who should skip it:** Skip it if you want a finished agent, as it is only the memory part. - **Facts last checked:** Nov 12, 2026 ## Pricing As of Nov 12, 2026, Mem0 has a free plan. - **Pricing model:** Free plan - **Free plan:** Unlimited end users; 10,000 adds and 1,000 retrievals a month for the first 30 days, or 50,000 adds and 10,000 retrievals a month with your own LLM key. - **Free trial:** None listed. | Plan | Price | What you get | | --- | --- | --- | | Free | $0 | Unlimited end users, community support, and usage-based billing past the limits with a monthly cap you set. | | Custom | Custom | Limits set to your volume, graph memory, user profiles, advanced analytics, private Slack support, SSO, audit logs, SLA and on-prem deployment. | Read from https://mem0.ai/pricing on Nov 12, 2026. Prices change, so confirm with Mem0 before buying. ## Key features - **Persistent memory:** Messages are added per user and searched later, so an agent can recall preferences and facts across sessions. - **Memory compression:** The vendor says chat history is condensed into compact memories to cut tokens and latency. - **Python and JavaScript SDKs:** A few lines of code add and search memories, and the docs include setup guides for 22 frameworks and tools such as LangChain, CrewAI and the Vercel AI SDK. - **Coding-agent plugins and MCP:** Guides cover adding memory to Claude Code, Cursor, Codex and other coding agents, and an MCP integration is listed. - **Graph memory and user profiles:** Entity linking and user profiles are listed on the Custom plan only. - **Open-source version:** The same memory layer can run as a library or a Docker stack on your own infrastructure under an Apache-2.0 license. ## Good for - Developers adding long-term memory to chatbots, support agents and voice agents - Teams that want to self-host memory for data-control reasons - Builders who can bring their own LLM key to get higher free limits ## Worth knowing - The pricing page shows only a Free plan and a Custom plan; the price of Custom is not published. - The Free plan includes 10,000 adds and 1,000 retrievals for the first 30 days with model calls on Mem0; after that you supply your own LLM key. - Graph memory, user profiles, advanced analytics, SSO, audit logs and on-prem deployment are limited to Custom. - Past the free limits, usage is billed, but the page does not state the rates. ## ToolGPA grades **GPA: 2.6 out of 4**, graded Nov 12, 2026. Mem0 is a memory layer that lets agents remember users across sessions, with SDKs in Python and JavaScript and an open-source version. The Free plan's hosted limits shrink after 30 days unless you add your own LLM key, and the paid plan has no published price. - **Value for money: A.** An open-source version you can run yourself, and a Free plan with unlimited end users. The only other plan is Custom, with no price shown. - **Free plan and trial: B.** Free gives 10,000 adds and 1,000 retrievals a month for 30 days, then 50,000 adds and 10,000 retrievals with your own LLM key. - **Features: C.** It does the memory job fully but only that job. Graph memory, user profiles, analytics and SSO are Custom only. - **Ease of use: D.** No store rating, and you add it to your own agent through SDKs or an MCP server. - **Platforms and integrations: B.** Web, with Python and JavaScript SDKs and LangChain, CrewAI, LlamaIndex, Claude Code and Cursor listed. These are ToolGPA's own grades. Graded from this listing, whose facts were read from Mem0's own pages on 12 November 2026. Not based on using the product, and shorter than our full reviews. ## Where it stands among AI agents - Mem0's GPA of 2.6 is higher than 70 of the 101 other AI agents we grade, and level with 17. - It stands best on value for money (A, above 91 of 101) and worst on ease of use (D, above 0). The category's chart of price against score: https://toolgpa.com/charts/ai-agents ## Keep it, or make your own? **Keep it.** To replace Mem0 you would be making an AI agent, with the models and the safeguards behind it. That is not a weekend's work, with an AI app builder or without one. It is one of the better ones too: its GPA of 2.6 is higher than 70 of the 101 other AI agents we grade. Mem0 is open source, so there is a third way: take its code and run it yourself. - You could not: An AI agent, with the models and the safeguards behind it. - You could not: It plugs into other products, LangChain, CrewAI and LlamaIndex among them, and has an API. A judgement by ToolGPA from this listing, by rules that are the same for every tool. Nothing was built to test it. ## Works with LangChain, CrewAI, LlamaIndex, Vercel AI SDK, Claude Code, Cursor, Codex **Tags:** AI agents, Open source, Self-hostable, Public API, AI features ## Alternatives - [Letta](https://toolgpa.com/tools/letta): Stateful agents with long-term memory, from the MemGPT team. [Compare](https://toolgpa.com/compare/letta-vs-mem0) - [Mastra](https://toolgpa.com/tools/mastra): TypeScript framework for building and running AI agents. [Compare](https://toolgpa.com/compare/mastra-vs-mem0) - [CrewAI](https://toolgpa.com/tools/crewai): Multi-agent platform to build, run and govern AI agents. [Compare](https://toolgpa.com/compare/crewai-vs-mem0) - [Agenta](https://toolgpa.com/tools/agenta): Open-source workspace for building team AI agents and automations. [Compare](https://toolgpa.com/compare/agenta-vs-mem0) - [E2B](https://toolgpa.com/tools/e2b): Cloud sandboxes where AI agents run code and tools. [Compare](https://toolgpa.com/compare/e2b-vs-mem0) ## Sources The prices, plans, platforms and features above were read from these pages on Nov 12, 2026: - https://mem0.ai/pricing - https://mem0.ai - https://docs.mem0.ai/introduction - https://github.com/mem0ai/mem0 Page: https://toolgpa.com/tools/mem0 Listed by ToolGPA (toolgpa.com).