Knowledge & Memory – MCP servers
339 MCP servers in the category Knowledge & Memory. Open-source Model Context Protocol (MCP) servers that let AI assistants and agents use external tools and data. Entries come from the community list awesome-mcp-servers; we have not tested each server, so check the repository before you install one.
FilippoPilo/cortex-connector
Persistent semantic memory for agents with quality-gated writes, typed claims, conflict tracking and coherence scoring.
fish827-08/rag-kb
Local-first agent memory and knowledge base: hybrid dense and BM25 retrieval, document and webpage ingestion and optional RAG answers via local…
Fisher521/burn-mcp-server
Search, triage and organize bookmarks saved in the Burn 451 read-later app as a knowledge base.
forgemeshlabs/library-mcp
Public-domain book knowledge base paid via x402: full-text search, metadata, chapters, quotes, ask-a-book Q&A and curated subject shelves.
g1itchbot8888-del/agent-memory
Three-layer agent memory (identity, active, archive) with semantic search, graph relationships and conflict detection.
gamosoft/NoteDiscovery
Self-hosted Markdown knowledge base with a web UI: search, read, create, edit, tag and template notes.
geondongkim/geond-agent-protocol
Local-first shared memory and coordination for coding agents on PostgreSQL/pgvector: repository evidence, reservations, handoffs and code graph…
GetCacheOverflow/CacheOverflow
Knowledge marketplace where agents search, publish and unlock previously solved problems, earning tokens for shared solutions.
gingugu/gingugu
Local SQLite memory for coding assistants: typed memories with confidence lifecycle, namespaces, knowledge graph, hybrid search and keychain…
giskard09/giskard-oasis
Refocuses an agent that has lost its thread by distilling its original purpose, paid per use via Lightning or Arbitrum.
GistPad-MCP
Manage personal knowledge, daily notes and reusable prompts in GitHub Gists, as a companion to GistPad.
giuliohome-org/doc-manager
Personal document vault on Azure Blob Storage: read, write and search plaintext docs, while client-side AES-256-GCM encrypted docs stay opaque.
Goldentrii/AgentRecall
Persistent cross-session agent memory that surfaces the most relevant past memories using the Intelligent Distance Protocol.
gordonkjlee/facthouse
Local memory engine for AI tools, stored in a SQLite file you own.
gpitrella/memxus-remote-mcp
Shared context for dev teams: syncs GitHub, Notion and saved decisions into reusable project context that agents load at the start of each session.
graphlit-mcp-server
Ingest content from Slack, Discord, websites, Google Drive, Linear or GitHub into a Graphlit project, then search and retrieve relevant knowledge.
gregario/3dprint-oracle
3D printing filament knowledge base from SpoolmanDB: search filaments, compare material properties and print settings, and diagnose print issues.
gregario/brewers-almanack
Brewing knowledge: BJCP 2021 beer styles, hop varieties, malts, yeasts, water profiles, off-flavour diagnosis, recipe suggestions and food pairings.
gregario/lego-oracle
LEGO sets, parts, minifigs and inventories from Rebrickable: search and compare sets, find parts by colour, browse themes and discover alternate…
grooverLab/fable
Full-text and semantic search over Claude Code transcript history, with exact thread recall and durable remembered facts in local SQLite.
hannesrudolph/mcp-ragdocs
Retrieve and process documentation through vector search to augment responses with relevant documentation context.
HatmanStack/ragstack-mcp
Access RAGStack serverless knowledge bases on AWS: search, chat with AI answers, upload documents and media, scrape websites and analyze metadata.
HBarefoot/engram
Offline persistent agent memory on SQLite with local embeddings, hybrid semantic and full-text recall, secret detection and contradiction handling.
hermes-labs-ai/fidelis
Local-first memory with verbatim recall, querying, health checks and context-sensitive orientation, using LLM-free retrieval by default.
hifriendbot/cogmemai-mcp
Cloud-based persistent memory for Claude Code with semantic search, AI extraction and project scoping.
hjqcan/GoodMemory
Local-first, auditable memory with scoped user/project storage in SQLite or Postgres, read-only recall by default and opt-in reviewed writeback.
hoornet/agentdocs-mcp
Read, create, update, comment on and share AgentDocs Markdown docs, with full-text and semantic search.
hubinoretros/deep-thinker
Reasoning via a DAG thought graph with multiple strategies (dialectic, analogical, abductive and more), stuck detection, confidence scoring and…
hyunjae-labs/lore
Local semantic search across Claude Code conversations with hybrid vector and keyword search, background indexing and per-project selection.
idapixl/algora-mcp-server
Browse and search open-source bounties on Algora, filter by org, tech or amount, and get top bounties and aggregate stats.
IgorGanapolsky/mcp-memory-gateway
Pre-action gates that prevent coding agents from repeating known mistakes by turning captured feedback and failures into rules enforced via hooks.
ihorponom/agentpack
Repo-native task continuity for coding agents: a reviewed task-state ledger of decisions, dead ends, evidence and checkpoints that later sessions…
Ikalus1988/MisakaNet
Agent failure memory: search verified debugging lessons from real engineering sessions.
irisxc4/memoryguard
Local-first governed shared memory for coding agents with CLI and desktop console: classify, dedupe, supersede, quarantine and roll back memories.
IvenKooLab/loci
Queryable second brain over your scattered notes, docs, PDFs and chat exports: hybrid retrieval (vector + BM25 fused with RRF), section-level…
JAAvila-Of/vivac
A provenance tree for coding agents: every node records the node it was born from, so the agent can ask why the work is where it is. A session brief…
jagoff/memo
Local-first semantic memory: hybrid search, Markdown storage, MLX or CPU embeddings, contradiction detection, time-travel history and cross-machine…
jaimenbell/rag-mcp
Minimal local RAG that vector-searches a document corpus and returns cited passages.
JamesANZ/cross-llm-mcp
Cross-LLM communication and memory sharing so different AI models can collaborate and share context across conversations.
JamesANZ/memory-mcp
Store and retrieve conversation memories from multiple LLMs in MongoDB, with timestamps and LLM identification.
japlete/md-vision-mcp
Read Markdown with inlined images and heading indexes for agentic RAG over local docs or allowed URLs.
jayasukuv11-beep/agenthelm
Shared, versioned memory and governance for AI coding agents, resolving architectural decision conflicts across agents.
jaydubya818/Agentic-KB
Persistent engineering knowledge base with source-backed wiki, agent-runtime and repository-context tools, contradiction and staleness checks, and…
jcdickinson/simplemem
Simple memory for coding agents using DuckDB and VoyageAI.
jessedu29260-netizen/booboo
View and query your AI system (agents, memory, knowledge, automations) as a 3D knowledge graph: stats, search, node details, neighbors and…
JinNing6/Noosphere
Shared community repository of insights, decisions, warnings and patterns with semantic search, a 3D interactive globe and automated content…
JinyangWang27/people-context
Local-first memory about the people in your life: identity resolution, relationships, facts, interactions, reminders and communication guidance.
jinzcdev/markmap-mcp-server
Convert Markdown into interactive markmap mind maps with PNG/JPG/SVG export and live browser preview.
jmpdsevilla/BovedIA
Personal memory for Claude Code in plain Markdown notes, with a router note that decides what context to load and a layer for thoughts and feelings.
junnnnnw00/obsidian-everywhere
Graph-native Obsidian vault access: search, backlinks, n-hop neighborhoods, paginated reads and safe partial and bulk edits with dry-run and rollback.
juyterman1000/entroly
Context control layer for coding agents: compression, prompt-prefix stabilization for caching, cheaper-model routing, local hallucination checks and…
kaaustubh/project-memory-mcp
Persistent memory for coding agents in plain repo files (AGENTS.md, issues.jsonl): captures bugs, fixes, decisions and corrections and recalls them…
kael-bit/engram-rs
Hierarchical agent memory engine with automatic decay, promotion, semantic deduplication and a self-organizing topic tree.
kage-core/Kage
Git-native memory for coding agents: JSON entries in the repo, verified against cited code so hallucinated citations are rejected and stale memory…
kaliaboi/mcp-zotero
Work with collections and sources in your Zotero Cloud library.
khwanlabs/khwan-mcp
Memory for coding agents built around corrections: distills your corrections into standing rules for later sessions, with isolated memory per project.
knaisoma/data-olympus
Git-native Markdown knowledge base for coding agents with proposed vs. accepted guidance, validity windows, supersession chains and status-aware…
krimto-labs/krimto
Team memory for coding agents stored as Markdown in git, with user, team and org access levels and hybrid SQLite/sqlite-vec retrieval.
Krzysztof318/MailFathom
Self-hosted email search: syncs IMAP mailboxes into PostgreSQL to list, search and read mail and ask cited questions across the archive.
kskurtveit/echocache
Cache expensive LLM results with HTTP-style freshness (TTL, stale-while-revalidate) and semantic recall of related past answers.
kunickiaj/codemem
Persistent coding memory across sessions, machines and teammates, with memory search, optional sync, project sharing and automatic capture.
kunwar-shah/claudex
Persistent memory and full-text search over Claude Code conversation history indexed into SQLite, with session summaries and a web UI for exploration.
KVANTRA-dev/NOUZ-MCP
Semantic knowledge graph for Obsidian with graph, classification and hierarchy modes, local embeddings, semantic bridge discovery and drift detection.
kyle-visner/stellarjay
Safe write access for AI agents: an append-only business fact store where every change is kept, attributed to the agent that made it, and can be…
Kyrzin/kybase
Self-hosted Markdown knowledge base that doubles as persistent memory for AI agents: a notes app you browse and edit (wikilinks, backlinks, graph),…
l33tdawg/sage
Local institutional memory for agents where BFT consensus among validators approves every memory before it is committed.
LamantinAI/kaeru
Memory for LLM agents: a local graph where the agent itself keeps decisions, tasks, hypotheses and reasoning between sessions, and gets a summary of…
laradji/deadzone
Offline semantic search over library documentation using a pre-built, version-pinned vector index fetched and verified on first launch.
lbailey94/whitemagic
Local-first durable memory and session continuity for AI agents, with a hash-chained audit ledger and backup, export and import across devices.
leesgit/passbaton
Local session continuity across Claude Code, Codex CLI and Gemini CLI: context injection on start, compaction handover, memory, tasks and…
leonardsellem/hypermnesic
Git-first agent memory: Markdown files are the source of truth, the index is disposable and writes are reviewable commits, with hybrid search and a…
lfrmonteiro99/memento-mcp
Local-first memory for coding agents: stores facts, decisions, patterns and architecture notes in SQLite to reduce repeated context across sessions.
Lians-ai/Lians
Bitemporal agent memory with deterministic fact supersession, point-in-time recall, memory lineage, conflict tracking and tamper-evident audit trails.
liftkkkk/owl-mcp
Work with OWL/TTL/RDF ontologies: SPARQL queries, HermiT/Pellet reasoning and CRUD operations on knowledge graphs.
LiLara-AI/shadowgraph
Local-first decision memory for AI agents: stores choices, rejected alternatives and reasons, failed attempts, outcomes, provenance and review…
lildaddyo/braintube-mcp
Compiles saved YouTube videos, podcasts, articles, PDFs and Notion/Obsidian notes into a persistent, semantically searchable knowledge base.
linklore/linklore-mcp
Structured memory for coding agents: typed lore and doc entries with status and links that agents read and write.
linxule/lotus-wisdom-mcp
Contemplative problem-solving using the Lotus Sutra's framework: multi-perspective reasoning, skillful means, non-dual recognition and meditation…
lithtrix/lithtrix-mcp
Persistent cross-vendor agent memory with credibility-scored web search, browser fetch and a shared Commons pool under one stable key.
liza-studio/skillmem
Self-improving skill memory for coding agents: useful skills are reinforced, unused ones fade; local English/Russian hybrid search, tamper-evident…
lockstep-team-agent/lockstep
Shared decision memory for teams using AI coding agents: captures engineering decisions, ranks them by blast radius and briefs agents before they act.
louis030195/easy-obsidian-mcp
Create, read, update and search notes in local Obsidian vaults via filesystem access.
LuizEduPP/rememb
Persistent agent memory in local JSON with sectioned entries (project, user, context), semantic search, a CLI and per-project scope.
lumayapartners/memini
Local-first project memory and guardrails for coding agents: records failed attempts, fragile files and decisions per repo and warns before repeated…
lyonzin/knowledge-rag
Offline RAG for Claude Code with hybrid BM25 and semantic search, cross-encoder reranking, Markdown-aware chunking and query expansion.
M-T-D-N/agentmemory-codex-windows
Windows AgentMemory downstream for Codex with project-scoped persistent memory, bounded cross-project recall, and an authenticated loopback MCP…
Magnemo-AI/magnemo
Governed local agent memory in plain files: each entry records who wrote it, when and through which gate, and nothing is kept without user approval.
majiayu000/remem
Local-first memory for Claude Code and Codex: hooks capture sessions and an LLM distills them into SQLite, with auditable full-text and embedding…
MakeaMouse/fish-bridge-mcp
Compresses AI chat sessions into a compact typed knowledge graph, with optional offline extraction via Ollama.
markmhendrickson/neotoma
Deterministic state layer for agents: versioned entities like contacts, tasks and decisions with immutable observations and provenance, in local…
mattjoyce/mcp-persona-sessions
Structured, persona-driven sessions for interview preparation, personal reflection and coaching, with timers and performance evaluation.
max-ramas/rms-memory-mcp
Local-first memory for coding agents: hybrid LanceDB/Tantivy search, Markdown and code indexes, per-project vaults and recall that abstains on low…
maxkuminov/obsidian-mcp
Self-hosted Obsidian server: semantic and full-text search on PostgreSQL/pgvector, wikilink graph traversal, atomic note CRUD and a self-describing…
mcasdfgf/mcp-roo-memory
Persistent fractal graph memory for coding agents: semantic search, hot/cold/archive context tiers and decision tracking on Qdrant.
memokar/brainy
Self-hosted shared brain for multiple agents: Git-versioned Markdown knowledge plus a task queue with atomic claims, per-space ACL, audit log and…
memstate-ai/memstate-mcp
Versioned, structured agent memory storing facts as keypaths with full version history and automatic conflict detection.
mercurialsolo/counsel-mcp
Strategic reasoning, multi-perspective debate analysis and interactive advisory sessions via the Counsel API.
michael-denyer/memory-mcp
Two-tier memory (hot cache and cold semantic search) that promotes frequently used patterns, extracts knowledge from Claude outputs and links it in…
michielinksee/linksee-memory
Local-first cross-agent memory in one SQLite file with a layered structure, Ebbinghaus-style forgetting and detection of code drifting from past…
mlorentedev/hive
On-demand Obsidian vault access: adaptive context loading, full-text and ranked search, health checks, auto git commits and delegation to cheaper…