MCP servers · by job

Memory & knowledge MCP servers

330 MCP servers that give an agent long-term memory, notes and a knowledge base. 69 are SAFE, 83 CAUTION and 178 BLOCK. Ranked by trust score; each card opens the full audit.

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ModelsAtlas. “Memory & knowledge MCP servers”. Retrieved 29 Oct 2026. https://modelsatlas.com/mcp/topic/memory/page/13

Verdicts · 330 servers

✓SAFE69!CAUTION83✕BLOCK178

Transports

A server can list more than one transport.

Tool risk

108

servers expose at least one destructive tool: delete, overwrite or run. The median server with a readable tool list exposes 10 tools.

Servers with no destructive tools →

330 memory & knowledge servers

289–312 of 330 · ranked by trust score, then stars

obsidian-mcp-server

cyanheads/obsidian-mcp-server

✕BLOCK F

Read, write, search, and surgically edit Obsidian vault notes, tags, and frontmatter via MCP. STDIO or Streamable HTTP.

★ 6953 readstdio

Obsidian

cyanheads/obsidian-mcp-server

✕BLOCK F

Read, write, search, and surgically edit Obsidian vault notes, tags, and frontmatter via MCP. STDIO or Streamable HTTP.

★ 6871 writestdio

surreal-memory

acidkill/surreal-memory

✕BLOCK F
★ 78 readstreamable-http

Basic Memory

basicmachines-co/basic-memory

✕BLOCK F

AI conversations that actually remember. Never re-explain your project to your AI again. Join our Discord: https://discord.gg/tyvKNccgqN

★ 4,0161 destructivestdio

Claude Total Memory

vbcherepanov/total-agent-memory

✕BLOCK F

Persistent local memory for AI coding agents — Claude Code, Codex CLI, Cursor, any MCP client. Temporal knowledge graph, procedural memory, AST codebase ingest, cross-project analogy. LongMemEval R@5 95.1%, LoCoMo 0.607, BEAM 1M 0.448. 74 MCP tools, 9 IDEs, 100% local.

★ 713 destructivestdio

ghost

wcatz/ghost

✕BLOCK F

GhostMem — a local-first MCP memory server for Claude Code, opencode, Cursor, and other MCP clients.

★ 21 writestdio

Flexible GraphRAG

stevereiner/flexible-graphrag

✕BLOCK F

Python, LlamaIndex, LangChain, 15 Property Graph, 4 RDF , 10 Vector, OpenSearch, Elasticsearch DBs. 14 data sources, 10 auto sync: Alfresco, Nuxeo, etc. KG auto-building, Ontologies, LLMs, Docling, LlamaParse, LiteParse, GraphRAG, RAG, Hybrid Search, AI Chat. TypeScript React, Vue, Angular frontends

★ 1889 read

Origin

7xuanlu/origin

✕BLOCK F

A living personal wiki. Wenlan turns your documents, notes, and AI chats into pages with links to their sources, and updates them as sources change without overwriting your edits. Claude Code, Codex and other AI tools can build on it.

★ 7917 readstreamable-http

Wenlan

7xuanlu/wenlan

✕BLOCK F

A living personal wiki. Wenlan turns your documents, notes, and AI chats into pages with links to their sources, and updates them as sources change without overwriting your edits. Claude Code, Codex and other AI tools can build on it.

★ 7917 readstreamable-http

BuildersGate

Thepizzapie/BuildersGate

✕BLOCK F

Agentic game development for building games with AI Agents. Run one session per seat: art, gameplay, narrative, QA, audio, tech all in 1 spot

★ 294 write

chat-recall

munhq/chat-recall

✕BLOCK F

Memory, secret alerts, ranked code findings and tracked tasks across every AI coding tool. Indexes Claude Code, Codex, OpenCode, Antigravity and Cursor sessions into one searchable history, and exposes it to your agent over MCP.

★ 22 destructivestdio

Selene

tercumantanumut/selene

✕BLOCK F

Selene is a desktop app that runs AI agents on your machine. Connect them to your WhatsApp, Telegram, Slack, or Discord. Write code, generate images, build personal assistants. All from one place. Your data stays on your device.

★ 1692 writestreamable-http

Seline

tercumantanumut/seline

✕BLOCK F

Selene is a desktop app that runs AI agents on your machine. Connect them to your WhatsApp, Telegram, Slack, or Discord. Write code, generate images, build personal assistants. All from one place. Your data stays on your device.

★ 1692 writestreamable-http

anysearch-cli

Xxx91n/anysearch-cli

✕BLOCK F

Vertical-domain information-specialist agent CLI — search + research + memory + knowledge with domain allowlists, abstain-first answers, and a fail-open MCP server

★ 01 writestdio

Kappa Graph

aaronsb/knowledge-graph-system

✕BLOCK F

Kappa Graph — κ(G). A semantic knowledge graph where knowledge has weight. Extracts concepts, measures grounding strength, preserves disagreement, traces everything to source.

★ 1282 destructivestdio

memory-cloud

kagura-ai/memory-cloud

✕BLOCK F

Adaptive memory for AI agents & teams — beyond RAG. Self-hosted MCP server that gets smarter every time you search: hybrid search + a neural memory graph that learns. Works with Claude, ChatGPT & any MCP client.

★ 12Not listed in sourcestreamable-http

Memory Service

doobidoo/mcp-memory-service

✕BLOCK F

Open-source persistent memory for AI agent pipelines (LangGraph, CrewAI, AutoGen) and Claude. REST API + knowledge graph + autonomous consolidation.

★ 1,9541 destructivestdio

MemClaw

caura-ai/caura-memclaw

✕BLOCK F

Caura (formerly MemClaw) — governed shared memory for AI agent fleets. Multi-agent, multi-tenant, MCP-native. Trust tiers, keystone policies, audit trails, knowledge graph, self-improving retrieval. Apache 2.0.

★ 5442 writestreamable-http

shieldcortex

Drakon-Systems-Ltd/ShieldCortex

✕BLOCK F

Memory security for AI agents. Scan native memory writes, gate tools on bound hosts, inspect what was stored. Not a second brain.

★ 255 destructivestdio

who2be

luetzey/who2be

✕BLOCK F

Self-hosted hub for AI agent configuration: versioned personas, playbooks and knowledge with a mandatory review step, served to agents over MCP. Agent configuration you review — not behavior you hope for.

★ 05 readstdio

Genkit

genkit-ai/genkit

✕BLOCK F

Open-source framework for building agentic apps in JavaScript, Go, Dart, and Python, built and used in production by Google

★ 6,5091 destructivesse

SoloMD

zhitongblog/solomd

✕BLOCK F

A markdown editor — and the bridge to your LLM. Local-first, MIT, ~15 MB. Bundled MCP server lets Claude Code / Codex / Cursor drive your vault directly. 14 AI providers BYOK.

★ 1,130Not listed in sourcestdio

caura

caura-ai/caura

✕BLOCK F

Caura (formerly MemClaw) — governed shared memory for AI agent fleets. Multi-agent, multi-tenant, MCP-native. Trust tiers, keystone policies, audit trails, knowledge graph, self-improving retrieval. Apache 2.0.

★ 5442 writestreamable-http

unitares

cirwel/unitares

✕BLOCK F

Accountability infrastructure for long-running AI agents. Self-hosted MCP server: identity, claims and evidence, review, outcomes, and reconstruction across agent runtimes.

★ 55 readstdio

Other jobs

By risk

Questions

How do you decide which servers are memory & knowledge servers?
By the categories each server's own repository declares, mapped onto this job by a hand-kept table. A server can belong to more than one job, and one whose repository declares no matching category is not listed here.
Which memory & knowledge MCP servers rank highest on trust?
Graphiti (getzep/graphiti), Memory Bank (alioshr/memory-bank-mcp) and Knowledge Graph Memory (shaneholloman/mcp-knowledge-graph), by trust score and then stars. Ranking never uses popularity to change a verdict.
How many memory & knowledge servers only read?
88 of the 330 declare tools that all only read; 108 expose at least one destructive tool.

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