MCP Server Directory

45,105 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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13 servers in Knowledge, Memory & RAG

Memory

92k

modelcontextprotocol/memory

Knowledge graph-based persistent memory system.

LocalFreeTypeScriptKnowledge, Memory & RAG

Mastra/mcp-docs

29k

mastra-ai/mastra

Provides AI assistants with direct access to Mastra.ai's complete knowledge base.

LocalFreeKnowledge, Memory & RAG

AWS Bedrock KB Retrieval

9.9k

awslabs/mcp

Query Amazon Bedrock Knowledge Bases using natural language to retrieve relevant information from your data sources.

LocalFreeKnowledge, Memory & RAG

Notion

4.7k

makenotion/notion-mcp-server

Notion official MCP server

LocalFreeKnowledge, Memory & RAG

Graphlit

378

graphlit/graphlit-mcp-server

Ingest content from Slack, Discord, websites, Google Drive, Linear or GitHub into a Graphlit project, then search and retrieve relevant knowledge.

LocalAccount neededTypeScriptKnowledge, Memory & RAG

Assistant

46

pinecone-io/assistant-mcp

Connect to your Pinecone Assistant and retrieve context from its knowledge engine.

LocalAccount neededRustKnowledge, Memory & RAG

Mnemosyne OS

20

Mnemosyne-OS/Mnemosyne-Neural-OS

Human-governed memory in local, domain-separated vaults with hybrid retrieval; also reads other coding agents' output. Requires the Mnemosyne OS desktop app.

LocalFreeTypeScriptKnowledge, Memory & RAG

Routine

3

routineco/mcp-server

MCP server to interact with Routine: calendars, tasks, notes, etc.

LocalFreeKnowledge, Memory & RAG

Artifacta

1

SagaPeak/artifacta-mcp

Artifact store for agent outputs: persist, retrieve and share them across runs and sessions, with content-hash dedup and expiring share links.

Local + RemoteAccount neededPythonKnowledge, 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

Solucortex

0

soluai-spa/solucortex-mcp

Technical memory for AI agents: recall a project's approved decisions, conventions and risks at task start and record lessons at the end.

Local + RemoteAccount neededPythonKnowledge, 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