MCP Server Directory

45,118 Model Context Protocol servers for Claude Code, Claude Desktop, Cursor and every MCP client. Filter by what they do, whether they run locally or remotely, and whether they're free.

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866 servers in Knowledge, Memory & RAG

Mazarbul

1

mo-cmyk/mazarbul

Local-first memory for AI agents: entities, facts, relations and documents with semantic recall.

LocalFreeKnowledge, Memory & RAG

MemCell

11.9k

memcell-ai/mcp

Shared, persistent memory for AI agents: recall before acting, report outcomes to earn confidence.

Local + RemoteFreeKnowledge, Memory & RAG

memdsl

1

Liyuan1992/memdsl

Review-gated declarative long-term memory with bounded read-only MCP access.

LocalFreeKnowledge, Memory & RAG

Memory Fabric

1

elViRafa/agentic-memory

File-first, local-first MCP memory for AI coding assistants: Markdown + YAML, no vector DB.

LocalFreeKnowledge, Memory & RAG

MindCore Memory

1

woshilaohei/mindcore-memory-mcp

AI long-term memory MCP server with importance scoring and confidence calibration

LocalFreeKnowledge, Memory & RAG

Mindtrail

1

RohitDeshmukh-1/Mindtrail-MCP

Persistent, local-first memory for AI coding agents. Remember, recall and forget across sessions.

LocalFreeKnowledge, Memory & RAG

nanomem

1

OmBansod2/nanomem

Memory that knows when a remembered fact has been replaced, not just when it was written.

LocalFreeKnowledge, Memory & RAG

NervaPack

1

ramdhavepreetam/NervaPack

Offline codebase knowledge graph: 91% token reduction vs naive RAG, plus cross-session agent memory.

LocalFreeKnowledge, Memory & RAG

Neurohive

1128

AdelElo13/neurohive

Multi-agent memory intelligence with expertise tracking and conflict detection

LocalFreeKnowledge, Memory & RAG

NexTool MCP for GLPI

1

NexTools-Solutions/nextool-mcp-glpi

MCP server for GLPI: tickets, ITIL, assets, knowledge base. GLPI 10/11. Not affiliated with Teclib'.

Local + RemoteFreeKnowledge, Memory & RAG

Obsidian

1

seynurmammad0v/obsidian-mcp

Turns Obsidian vaults into AI-queryable knowledge graphs with 12 tools

LocalFreeKnowledge, Memory & RAG

Open Agent Commons

1

wd666430-rgb/open-agent-commons

Public broadcast and durable shared memory for AI systems and agents using signed Events.

LocalFreeKnowledge, Memory & RAG

OpenToonz

1

konkomaji/opentoonz-mcp

Animate in OpenToonz from an AI assistant: native vector levels, xsheet timing, rigs and physics.

LocalFreeKnowledge, Memory & RAG

Overwatch 2 Data

1

BK927/overwatch-aio

Overwatch 2 MCP for hero meta, public player stats, replays, patch notes, and OWCS Korea.

LocalFreeKnowledge, Memory & RAG

Qdrant Memory

1

cnkang/qdrant-memory-mcp

Persistent scoped Qdrant memory for agents, through four explicit stdio MCP tools.

LocalFreeKnowledge, Memory & RAG

Session Forge

1158

420247jake/session-forge

Persistent memory and session intelligence for AI coding assistants. Zero config.

LocalFreeKnowledge, Memory & RAG

shyn

1

shyn-labs/shyn

Local-first ambient memory for your Mac — pages, meetings, notes, encrypted on-device.

LocalFreeKnowledge, Memory & RAG

Standup mr

1942

Jubstaaa/standup-mr

Standup notes from merge request state, with the failed job's error lines.

Local + RemoteFreeKnowledge, Memory & RAG

Verbative Memory

1139

verbative/verbative-memory

On-device, self-organizing memory for AI coding agents — recalls the right facts into each prompt.

LocalFreeKnowledge, Memory & RAG

Verified Repo Memory

1

cognitivemyriad/mcp-verified-repo-memory

Stale-proof repository memory with citations + just-in-time verification + TTL (repo-scoped).

LocalFreeKnowledge, Memory & RAG

Vox

1

linxule/vox-mcp

Multi-model AI gateway — 10 providers including Cloudflare and Vercel, with conversation memory.

LocalFreeKnowledge, Memory & RAG

Yagami AI Context Firewall

1

MatthewTracy/yagami

Open-source AI context firewall for governed model, retrieval, memory, and tool access.

LocalFreeKnowledge, Memory & RAG

Willi MaKo Knowledge Service

A knowledge service for Germany's complex Energy Market Communications (MaKo) regulations.

LocalFreeKnowledge, Memory & RAG

Brainy

0

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 human approval, so Claude, ChatGPT and other agents can hand work to each other.

LocalFreePythonKnowledge, Memory & RAG

Telys — on-device memory

0

thyn-ai/telys-sdk

Official Telys MCP server — private, on-device memory & retrieval for AI assistants: 19 tools covering memory CRUD, semantic + on-device BM25 lexical search, single-key filtered queries, compaction/IVF/tuning maintenance, and a self-refreshing repo auto-indexer. Stdio; introspection needs no credentials; execution requires the one-time free telys login (device authorization). pipx install telys

LocalFreePythonKnowledge, Memory & RAG

0CompactMem

soolaugust/0CompactMem

Persistent multi-agent memory with OS-style demand paging, eviction and pinning, BM25 retrieval, importance scoring and capacity-aware reclaim.

LocalFreePythonKnowledge, Memory & RAG

Agentic Recall

0

dfrancislyondflabc-tech/agentic-recall

Long-term memory over a folder of Markdown files: local hybrid retrieval (BM25F, dense vectors, phrase proximity) that reports when an answer is absent.

LocalFreeTypeScriptKnowledge, Memory & RAG

AIeph

Look up a shared cache of past answers to programming questions.

RemoteFreeKnowledge, Memory & RAG

Analytics Legends

SAP AI & analytics market data: consulting firms, day-rate bands, job radar and news, each record citable.

RemoteFreeKnowledge, Memory & RAG

AuraSDK

teolex2020/AuraSDK

Persistent, encrypted cognitive memory that works offline.

LocalFreePythonKnowledge, Memory & RAG

BotGathering

Tested step-by-step playbooks for AI agents: search, follow and report outcomes. Free.

RemoteFreeKnowledge, Memory & RAG

Claude Engram

20alexl/claude-engram

Local persistent memory for Claude Code: tracks mistakes and decisions via hooks, searches session history, detects loops and warns before edits.

LocalFreePythonKnowledge, Memory & RAG

Cloud FinOps by OptimNow

Fetches FinOps reference guides and waste-pattern runbooks on cloud and AI cost management; no account needed.

RemoteFreeKnowledge, Memory & RAG

coldHat

Wear anyone's AI working rules by GitHub username: returns their hat.md and a hat code proving it was read.

RemoteFreeKnowledge, Memory & RAG

Continuity

Remembers your writing project across chats: story bible, characters, timeline and continuity checks.

RemoteFreeKnowledge, Memory & RAG

Cortex Plugin

TT-Wang/cortex-plugin

Claude Code memory plugin that mines past sessions for decisions, conventions and bug fixes, stores them in an Obsidian vault and briefs new sessions.

LocalFreePythonKnowledge, Memory & RAG

ctxstore

Persistent memory for AI agents: keyed facts, a wake bundle each session, one memory across every model.

RemoteFreeKnowledge, Memory & RAG

Deep Thinker

hubinoretros/deep-thinker

Reasoning via a DAG thought graph with multiple strategies (dialectic, analogical, abductive and more), stuck detection, confidence scoring and self-critique.

LocalFreeTypeScriptKnowledge, Memory & RAG

emem

Elevation, vegetation, flood, fire and air-quality facts for any place, each with a signed receipt.

RemoteFreeKnowledge, Memory & RAG

Greenlit Books

Search a catalog of practical AI books, read free chapters, and check a claim against the source behind it.

RemoteFreeKnowledge, Memory & RAG

Grounding AI

andyliszewski/grounding-ai

Local searchable index of PDFs, EPUBs and Word documents for grounded answers with page and section citations.

LocalFreePythonKnowledge, Memory & RAG

HAIDAA

Search signed scientific claims, methods, provenance, contradictions, retractions, and admission receipts.

RemoteFreeKnowledge, Memory & RAG

Jarvis Orb

whynowlab/jarvis-orb

Four-tier memory (episodic, semantic, project, procedural) with temporal scoring, contradiction detection, entity tracking and a desktop visualization orb.

LocalFreePythonKnowledge, Memory & RAG

Legends

cryptosquanch/legends-mcp

Chat with AI personas of famous founders and investors such as Elon Musk, Warren Buffett and Steve Jobs, based on their voices, frameworks and principles.

LocalFreeTypeScriptKnowledge, Memory & RAG

Local AI

0

setheerwagen/local-ai-mcp-servers/mcp-modelmanager

Manage a local model machine: pull and remove Ollama models, switch the inference service between models and run LoRA fine-tuning jobs.

LocalFreePythonKnowledge, Memory & RAG

MailFathom

Krzysztof318/MailFathom

Self-hosted email search: syncs IMAP mailboxes into PostgreSQL to list, search and read mail and ask cited questions across the archive.

LocalFreeC#Knowledge, Memory & RAG

MarkIt

Search, save and set reminders in your library of saved links, posts and notes; sign in to unlock all tools.

RemoteFreeKnowledge, Memory & RAG

Minima

dmayboroda/minima

Local RAG (on-premises) with MCP server.

LocalFreeKnowledge, Memory & RAG