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Head-to-head · AI Agent Memory Tools

MCP Memory Service vs MemOS

  • Updated Oct 2026
  • Both researched from official sources
  • 6 checks side by side
Higher score MCP Memory Service #3 in AI Agent Memory Tools 7.9/10 Free plan Free plan✓ 4 of 4 features Visit site
MemOS #6 in AI Agent Memory Tools 7.6/10 Free plan Free plan✓ 4 of 4 features Visit MemOS

MCP Memory Service leads on 1 check, MemOS on 0, and 5 are even. Who comes out ahead on the 6 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreMCP Memory Service · 7.9/10
  • Free planboth

MCP Memory Service scores higher on our rubric for ai agent memory tools: 7.9 against 7.6 out of 10; our editors rank them #3 and #6.

MCP Memory Service leads on sdk languages: 2 versus 1.

MCP Memory Service is the better fit for open-source teams needing full-stack memory. MemOS is the better fit for projects needing lifecycle-rich multimodal memory.

  • MCP Memory Service fits best

    Open-source teams needing full-stack memory

  • MemOS fits best

    Projects needing lifecycle-rich multimodal memory

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.

Side by side

Feature MCP Memory Service 7.9/10 Visit ↗ MemOS 7.6/10 Visit ↗
At a glance
Editor score 7.9 7.6
Ranking #3 in AI Agent Memory Tools #6 in AI Agent Memory Tools
Best for Open-source teams needing full-stack memory Projects needing lifecycle-rich multimodal memory
Pricing model Free Free plan + paid
Starting price Free plan $19/mo
Free plan ✓ ✓
Free trial — —
Deployment Cloud, Self-hosted Cloud, Self-hosted
Platforms Web, Windows, macOS, Linux Web
Support Docs Community, Docs
Integrations 25+ integrations 4 integrations
Built for Solo, Small business, Mid-market, Enterprise Solo, Small business, Mid-market, Enterprise
Features MCP Memory Service 4/4 · MemOS 4/4
Semantic memory ✓ ✓
Episodic memory ✓ ✓
User/profile memory ✓ ✓
Graph-based memory ✓ ✓
Specs
Deployment options Both Both
SDK languages 2 (best) 1
Retention policy Configurable Configurable
Our review
Pros
  • Semantic, hybrid BM25-plus-vector search with typed graph links
  • Automatic consolidation, decay, compression and pruning
  • MCP, REST, OAuth and local ONNX embedding support
  • Covers semantic, profile, event, graph, tool and multimodal memory
  • Lifecycle controls include merge, archive, expiration and freeze states
  • Cloud and self-hosted deployment with chat and knowledge-base APIs
Cons
  • Infrastructure costs such as a VPS are separate from the software
  • Configuration spans local, remote, REST, OAuth and CLI interfaces
  • Support is provided through documentation rather than listed service channels
  • Free and Starter plans list the same feature highlights
  • Dedicated support is listed only for the Pro plan
  • One SDK language is listed in the category specifications
Our verdict

MCP Memory Service is an open-source persistent memory layer from doobidoo for AI agents and coding assistants. It stores memories in local or synchronized backends, retrieves them through semantic and hybrid search, and links them in a…

Read the review →

MemOS is a memory operating system and managed platform for AI applications and agents. It accepts conversations, behavior events, documents, images, skills and tool traces, then extracts, updates, schedules and retrieves memories through…

Read the review →
  1. MCP Memory ServiceAI Agent Memory Tools 7.9Free plan
  2. MemOSAI Agent Memory Tools 7.6Free plan

Strengths and trade-offs

  • MCP Memory Service — where it wins

    • Semantic, hybrid BM25-plus-vector search with typed graph links
    • Automatic consolidation, decay, compression and pruning
    • MCP, REST, OAuth and local ONNX embedding support

    Where it doesn't

    • Infrastructure costs such as a VPS are separate from the software
    • Configuration spans local, remote, REST, OAuth and CLI interfaces
    • Support is provided through documentation rather than listed service channels

  • MemOS — where it wins

    • Covers semantic, profile, event, graph, tool and multimodal memory
    • Lifecycle controls include merge, archive, expiration and freeze states
    • Cloud and self-hosted deployment with chat and knowledge-base APIs

    Where it doesn't

    • Free and Starter plans list the same feature highlights
    • Dedicated support is listed only for the Pro plan
    • One SDK language is listed in the category specifications
  • MCP Memory Service7.9/10 · Free plan

    A broad open-source memory layer for teams that can manage deployment and configuration.

    Visit siteFull verdict →
  • MemOS7.6/10 · Free plan

    Lifecycle-rich multimodal memory with APIs, graph storage, and self-hosting.

    Visit MemOSFull verdict →

More comparisons

All AI agent memory tools comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update