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Memory & Knowledge MCP Servers

Servers that give agents persistent memory or a structured knowledge base to draw on across sessions. The directory lists 243 in this category, of which 66 are hosted remote servers needing no local install. Ranking below reflects maintenance, documentation, install experience and adoption — never payment.

All servers

cosmos mcp

teampolarity

Community

Personal knowledge graph every MCP client reads from and writes to. Portable across agents.

Aug 25, 2026Memory Knowledge
Local service39/1003

recall

RecallWorks

Community

Open-source MCP memory server. Persistent, searchable, tiered memory across sessions.

Jun 16, 2026Memory Knowledge
Local service39/1007

knowmind

Schubeler-Consulting

Community11

AI agent memory & knowledge graph, hosted in Germany (GDPR). Recall, relations, store via MCP.

Aug 10, 2026Memory Knowledge
Local service86/100

Lore Context

Lore-Context

Community

Governed AI-agent memory, Evidence Ledger traces, evals, and portable context tools.

Jul 28, 2026Memory Knowledge
Local service39/1004

prior

cg3-llc

Community5

Shared knowledge base for AI agents. Search and contribute solutions to technical problems.

May 17, 2026Memory Knowledge
Remote service68/1003

StremAI

thomasjumper

Community

StremAI MCP: shared memory for AI coding agents. Connected agents can recall. OAuth + local stdio.

Aug 31, 2026Memory Knowledge
Remote service39/1002

GRAFOMEM CGR Capture

GNS-Foundation

Community

Record agent judgments and their real outcomes on GRAFOMEM Cloud. Capture now, score later.

Aug 31, 2026Memory Knowledge
Local service39/1002
Community

One searchable memory across Claude Code, Gemini, Codex, OpenCode, Antigravity and Cursor sessions.

Aug 31, 2026Memory Knowledge
Remote service39/1002
Community

An MCP memory server. One memory your agents share — across models, devices and apps.

Aug 27, 2026Memory Knowledge
Remote service39/1002

Nahuali

Arakiss

Community

Trust-aware agent memory with evidence-backed recall, self-inspection, and audit history.

Jul 30, 2026Memory Knowledge
Local service39/1003

RCLL

Holetron-lab

Community5

Self-hosted shared memory for a team of AI agents. Rooms, L0-L3 depth, no LLM on the read path.

Aug 28, 2026Memory Knowledge
Local service78/100

peon mem

VineetV2

Community

Local-first memory brain for AI coding agents: hooks capture sessions, beliefs injected per prompt.

Aug 18, 2026Memory Knowledge
Local service39/1002
Community

Memory for AI coding agents. Call graphs + refactor safety + persistent code context. 35 MCP tools.

Jun 11, 2026Memory Knowledge
Remote service39/1005

Tugra

dogrucanemek-alt

Community4

Provenance-aware memory format for AI agents: every claim carries its source, age and boundary.

Aug 30, 2026Memory Knowledge
Local service75/100

Inkwell

veronchenko

Community

Persistent memory for AI agents: Markdown entries, hybrid search, typed graph links

Aug 14, 2026Memory Knowledge
Local service39/1002

korg recall mcp

New1Direction

Community

Cross-vendor semantic memory: recall across Claude Code / Codex / Grok sessions by meaning.

Jun 24, 2026Memory Knowledge
Local service39/1004

Norn

samad001z

Community

Local-first, persistent memory for AI coding agents — remember, recall, forget, and list, over MCP.

Jul 16, 2026Memory Knowledge
Local service39/1003

lightning memory

singularityjason

Community

Decentralized agent memory for the Lightning economy. Nostr identity, L402 payments.

Mar 25, 2026Memory Knowledge
Local service39/1009

neurohive

AdelElo13

Community15

Multi-agent memory intelligence with expertise tracking and conflict detection

Apr 16, 2026Memory Knowledge
Local service74/1001

purmemo

purmemo-ai

Community

AI memory across Claude, ChatGPT, Gemini, and Cursor. Save, search, and recall context everywhere.

Aug 3, 2026Memory Knowledge
Local service39/1002
Community

Local-first MCP server serving a project's business-domain knowledge to MCP-compatible agents.

Jun 12, 2026Memory Knowledge
Local service39/1004
Community

Encrypted local ledger of structured user state, shared across every MCP-aware AI tool.

Aug 31, 2026Memory Knowledge
Local service39/1001

Homestead Memory

fuckbigtech-ai

Community

Tamper-evident record of what your AI agent did, plus local-first verifiable memory.

Aug 31, 2026Memory Knowledge
Local service39/1001

vibo memory

vnbochkarev-netizen

Community

Memory for AI agents: persistent L1/L2/L3, web-search savings, thread memory.

Aug 31, 2026Memory Knowledge
Local service39/1001