Agent Memory & RAG-as-a-Servicefreemium

Mem0

Free Hobby tier: unlimited end users, 10K add / 1K retrieval requests/month

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What Mem0 does

  • Free Hobby tier: unlimited end users, 10K add / 1K retrieval requests/month
  • Graph memory and entity linking for agent context
  • Open-source core plus managed cloud API

Mem0 — straight answers

What is Mem0?

Mem0 is listed under Agent Memory & RAG-as-a-Service, in the AI Agents & Automation category on Flocci AI Tools. Free Hobby tier: unlimited end users, 10K add / 1K retrieval requests/month. It is freemium — a usable free tier with paid plans above it, and it lives at mem0.ai.

Is Mem0 free?

Mem0 is freemium: there is a free tier you can work in and paid plans above it. It is one of 426 freemium tools in the catalog, all labelled the same way so you are never surprised by a paywall.

Can I use Mem0 in a browser, or is there an app?

Mem0 works in a normal browser tab with no install. It is available on the web, an API and self-hosting. You can sign in with a Google account.

What can Mem0 do?

Mem0 does 3 things the catalog singles out: Free hobby tier: unlimited end users, 10k add / 1k retrieval requests/month; graph memory and entity linking for agent context; open-source core plus managed cloud api.

What is the best free alternative to Mem0?

MemOS is the closest free alternative: it sits in the same Agent Memory & RAG-as-a-Service sub-category and is free. RAGFlow, Basic Memory and Cognee also start free. The full list is on the alternatives page.

See the full list →

Mem0 alternatives

Compare all alternatives →

Zep

Agent Memory & RAG-as-a-Service
freemium
  • Free plan: 10,000 monthly credits, 2 projects, 200ms retrieval
  • Graph RAG with automated context assembly from chat + business data
  • Temporal knowledge graph for tracking how facts change over time
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Supermemory

Agent Memory & RAG-as-a-Service
freemium
  • Free monthly usage allowance plus a Supermemory MCP server
  • Native connectors for Google Drive, Notion, OneDrive as memory sources
  • Deduplication so repeated content isn't rebilled
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Letta

Agent Memory & RAG-as-a-Service
freemium
  • Free BYOK plan supporting up to 3 stateful agents
  • Stateful-agent runtime with persistent memory, desktop app, CLI and API
  • Open-source framework (formerly MemGPT) plus a managed cloud
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RAGFlow

Agent Memory & RAG-as-a-Service
freeNew
  • Open-source RAG engine with deep document parsing and agent workflows
  • Grounded citations and template-based chunking
  • Self-host with Docker; bring your own LLM
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LightRAG

Agent Memory & RAG-as-a-Service
freeNew
  • Simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025)
  • Combines knowledge-graph and vector retrieval
  • Works with local or hosted LLMs
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Cognee

Agent Memory & RAG-as-a-Service
freeNew
  • Open-source memory platform that turns data into a knowledge graph plus vectors for agents
  • Python API with pluggable graph, vector and relational stores
  • Self-host free; cloud option exists
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Head-to-head comparisons

Mem0 vs ZepMem0 vs SupermemoryMem0 vs LettaMem0 vs RAGFlowMem0 vs LightRAGMem0 vs Cognee