Knowledge & Memory
Persistent memory storage using knowledge graph structures. Enables AI models to maintain and query structured information across sessions.
MCP ServersBrowse all →
AlicenseAqualityBmaintenanceProvides a read-only MCP interface to the Santismm Knowledge Platform, offering tools to retrieve curated content on engineering, AI patterns, architectures, governance, and agent taxonomy with structured output in English, Spanish, and Portuguese.83022 npm1MIT- AlicenseAqualityAmaintenanceAuditable records of human decisions over AI agent work. Approvals, edits, overrides, escalations.6639104Apache 2.0

WhisperGraphofficial
AlicenseAqualityCmaintenanceSelf-hostable MCP server for WhisperGraph — a graph of 7.39B nodes / 39B edges mapping DNS, BGP, GeoIP, WHOIS, and threat intelligence. Six read-only tools (Cypher query + schema introspection + threat assessment), six resources, eight investigation prompts. stdio and Streamable HTTP transports.845 npm1Apache 2.0- AlicenseAqualityBmaintenanceA knowledge-based MCP server for Ozon sellers, enabling AI agents to search a 42-lesson Chinese operations playbook and discover/call over 460 Seller and Performance API methods for real business actions.6152MIT

@cogniahq/mcpofficial
AlicenseAqualityCmaintenanceEnables AI assistants to query end-to-end encrypted memories from Cognia workspace via MCP. Supports search, retrieval, and action execution against connected services like Slack, Notion, and GitHub.510 npmMIT- AlicenseAqualityBmaintenancePath-scoped team memories, rules and skills for AI coding agents.301MIT

debugbase-mcpofficial
AlicenseAqualityDmaintenanceEnables AI agents to search and submit solutions, ask and answer questions, share findings, and vote on content via DebugBase's collective knowledge base.1115 npmMIT- AlicenseAqualityAmaintenanceLocal memory for coding agents that can refuse, not only recall. A rule carrying a machine-checkable proof blocks the matching command before it runs, while prose-only rules can warn but never block.6164GPL 3.0
- AlicenseAqualityDmaintenanceAdds persistent memory to AI assistants by connecting to the Memphora cloud platform, allowing them to store and recall facts across conversations. It enables tools for searching memories, extracting insights, and maintaining long-term user context and preferences.523 PyPI3MIT

Tiger Memory MCP Serverofficial
AlicenseAqualityFmaintenanceA simple memory system that allows LLMs to store and retrieve information via the Model Context Protocol.430Apache 2.0- AlicenseAqualityBmaintenanceLocal-first memory for coding agents. Discovers the memory, instructions, and rules Claude Code, Codex, and Cursor already wrote on your machine, combines them into one canonical Markdown tree, and serves grounded, cited recall through tools like ask_memory and canonical_memory.2070 PyPI126MIT
- AlicenseAqualityBmaintenanceOfficial MCP server connecting hosts to a June knowledge graph for agent memory, search, and cited answers.101MIT

spirrow-prismindofficial
AlicenseBqualityBmaintenanceMCP server that integrates Google Drive, RAG, and memory services for context-aware knowledge management, enabling session, project, document, catalog, and knowledge operations for AI assistants.46MIT
graphite-mcpofficial
AlicenseAqualityCmaintenanceMCP server for the Graphite Financial Knowledge Graph, enabling natural language queries about companies, supply chains, executives, regulations, and patents via MCP-compatible clients.7MIT- AlicenseAqualityAmaintenanceMarrow is an MCP server that solves agent amnesia. It gives coding agents persistent task tracking, versioned docs, and semantic search over your actual source code (via a tree-sitter powered background indexer) — so a new session, or a different model entirely, can pick up exactly where the last one left off. Built for multi-agent, multi-session software delivery.620247MIT

ecoclaw-mcpofficial
AlicenseAqualityDmaintenanceManages local AI skills for Claude Desktop, enabling listing, running, tuning, forking, contributing, and updating skills stored as markdown files. Customizations are persistent and survive updates.9MIT
solucortex-mcpofficial
AlicenseAqualityAmaintenanceEnables MCP-compatible AI agents to connect to SoluCortex projects, recall relevant technical decisions, conventions, risks, and architecture before working, and record new memories afterward.4MIT- AlicenseAqualityBmaintenanceOfficial Telys MCP server: private, on-device AI memory and retrieval powered by native Mojo kernels. 19 tools: memory CRUD, semantic + BM25 search, single-key filters, compaction/IVF/tuning and self-refreshing repo auto-indexing. Stdio. Introspection needs no credentials; execution requires a one-time free telys login. Source: packages/telys-sdk/telys/mcp.py. Registry: io.github.thyn-ai/telys.19Apache 2.0
- AlicenseAqualityBmaintenanceGives your AI persistent memory across conversations. Stores facts automatically, finds them by meaning using hybrid search with query expansion, and organizes everything into topics without manual tagging.181MIT

lorg-mcp-serverofficial
AlicenseAqualityCmaintenanceIntelligence archive for AI agents. Contribute prompts, workflows, and insights to a permanent, cryptographically verifiable knowledge base. Agents earn public trust scores based on adoption and peer validation.2884 npm5MIT- AlicenseAqualityBmaintenanceA plain-files brain template and MCP server that lets models read owned, portable working memory via list, read, and grep-style search tools.344 npmMIT

JauMemory MCP Serverofficial
AlicenseAqualityCmaintenanceProvides persistent memory capabilities for AI assistants, enabling storage, recall, and analysis of information across conversations with intelligent memory management.2537 npmMIT- AlicenseAqualityAmaintenanceSelf-hosted knowledge base that gives AI agents persistent memory over MCP. 18 tools covering notes, folders, tags and trash; hybrid search combining pgvector embeddings with bilingual full-text ranking via RRF; [[wikilink]] graph traversal and backlinks; document import from PDF, DOCX and EPUB. Connects over Streamable HTTP or stdio, with Bearer-token or OAuth auth.2183AGPL 3.0
- FlicenseAqualityBmaintenanceShared fleet memory for AI agents — what one agent learns, the whole fleet knows. Nightly self-correction: stale facts rewritten in place, duplicates merged. Recall pushed into every prompt in supported coding agents. Self-hosted.8112-
- AlicenseAqualityBmaintenanceScoped, low-latency persistent memory layer for AI agents, Cursor, and Claude Code over Model Context Protocol with sub-50ms hybrid search.7MIT

LogicMem MCP Serverofficial
AlicenseBqualityDmaintenanceProvides persistent memory, reasoning, agent-to-agent sharing, and immutable audit trail for AI agents via the Model Context Protocol.121MIT
never4ga-mcpofficial
AlicenseAqualityAmaintenanceEnables AI agents and MCP clients to start each session with a pre-assembled context pack of the project's Markdown notes, decisions, rules, Git and tracker state, and to write progress and decisions back as dated logs. Context is gathered locally by lookups and queries rather than model calls, so different tools like Claude Code, Codex, and Antigravity share the same memory without spending tokens on retrieval.151Apache 2.0- AlicenseBqualityDmaintenanceMCP server for AI-agent handoffs with client-encrypted WorkBaton checkpoints and WorkStash notes.21103 PyPI2Apache 2.0
- AlicenseAqualityAmaintenanceEnables persistent, distilled memory for AI assistants, allowing recall and storage of durable facts across sessions and subagents via MCP.655 PyPIMIT

datacore-mcpofficial
AlicenseAqualityAmaintenanceMCP server exposing Datacore's knowledge base, GTD, and engram memory to any AI assistant.5352 npmMIT
MCP ConnectorsBrowse all →
Bring saved project decisions, preferences and goals into your next AI task. Configure keeps user-chosen context in a persistent, searchable profile with OAuth, explicit saves and user-provided imports.
ESG knowledge base for AI agents: hybrid search, glossary, frameworks, industries, graph traversal.
Your why agent, the infra agent for your fleet. Your agents work from what you decided, and why.
Engram is a persistent, long-term memory layer for AI agents and assistants. Claude, ChatGPT, Grok, Cursor and any MCP client share one memory, stored as plain markdown notes: your knowledge base, second brain and AI context in one place. No extraction step: the memory is the note itself, so you can read exactly what your AI remembers and fix it. Edit your memory in Obsidian (real-time sync), the web app, or on your phone. Hybrid keyword + semantic search (RAG over your notes) finds exact strings like error messages, config keys and IDs. Remote MCP server over Streamable HTTP with OAuth 2.1; notes encrypted at rest. Https://engram.page https://youtu.be/rwnPeZ-8Lqo?is=NI-N7BduydGAiZlF https://github.com/engram-app/Engram
Durable identity and memory for AI agents, anchored on the Emercoin blockchain.
CVE, KEV, MITRE ATT&CK, CWE and detection graph for AI agents; every link names its source.
A portable knowledge-graph memory you pass in and get back. No database. 4 of 6 free.
Collective memory and evidence-backed trust for AI agents. Search reusable knowledge with search_memories, then inspect_memory to review provenance, reported outcomes and limitations before applying it. Discover public agents and inspect Trust Passports. Public reads require no account or credentials. This Streamable HTTP connector exposes public discovery and existing Candy sandbox tools; Candy participation uses a temporary bearer token and grants no canonical reputation or verified identity. Persistent Agent contributions use a separate authenticated connection described at https://remnant.dedale-bi.com/connect. Remote MCP: https://remnant.dedale-bi.com/mcp. Documentation: https://remnant.dedale-bi.com/connect. Examples: https://github.com/Dedale-Project/remnant-connect. Evidence and cryptographic integrity do not guarantee truth or safety. Bootstrap memories are operator-published, not independently validated.
Cocktails you can make from bottles you already have, full recipes, and the best next bottle to add.
Shared memory for people and their AIs: read what was decided before acting, log what was done.
Cultural color and colour intelligence API. Every colour anchored to a named person, a documented year, and a consequence. 34 archives spanning literary, cultural, pigment, and national traditions. Ask it what color could get you executed in the Ottoman Empire.
Avoid redundant expensive validation. CHECK recent evidence; OBSERVE fresh independent results.
Portable AI memory you own. Keep memories and notes across Claude, ChatGPT, and other AI tools.
Save vocabulary from any AI chat; see each word in every language you know; review it with FSRS.
Your Recipes, Beautifully Kept. weReci MCP server lets Claude and other MCP clients work with your personal weReci cookbook, the recipes you've imported from the web, social video and scanned family books. Interactive UI in the chat. weReci supports MCP Apps, so in clients that support it, tools return live views instead of plain text: recipe cards, shopping lists and your recipe graph. Clients without MCP Apps support get the same results as text. Find and read recipes: search your collection in plain language, open any recipe in full, or get an overview of what's in your cookbook. Cook with them: scale a recipe to any serving count, with cooking adjustments as well as amounts. Get substitution suggestions with ratios and caveats. Explore connections: browse your recipe graph (shared ingredients, techniques and cuisines), trace the connection between two recipes, and look up where a dish sits on the cuisine map. Themed collections: list the themed groups weReci curates from your cookbook, or ask it to reshuffle them. Shop: build a shopping list from one or more recipes, add or update items, and read the list back. Share: email a recipe to someone. Longer jobs like conceit reshuffles run in the background, with tools to check their progress. Everything is scoped to your own cookbook, or to a shared one you've joined.
XMemo is a user-owned Memory OS for AI agents, providing a shared, persistent memory layer across AI assistants, IDEs, CLIs, tools, projects, and sessions. It enables ChatGPT, Claude, Codex, Cursor, Gemini, and other supported AI clients to access authorized long-term context without requiring users to repeatedly explain their preferences, project decisions, or previous work. Beyond basic memory storage and retrieval, XMemo supports semantic search, contextual recall, memory updates and corrections, source attribution, version history, project-scoped context, task tracking, and governed memory lifecycle management. Identity-aware access controls, scoped authorization, and memory isolation help users manage which agents and workflows can access their information. XMemo also provides advanced capabilities for structured knowledge, reusable procedures, and memory consolidation through its broader Memory OS platform. Connect through hosted MCP with OAuth or bearer-token authentication, or integrate directly through REST APIs and supported client tools. Memory remains available across authorized clients and sessions, with user-controlled access, export, and deletion. Website: https://xmemo.dev Documentation: https://xmemo.dev/docs
Query core AI knowledge, essays, executable Labs, Homeric data and epistemic claims.
Recall memories, entity profiles and source notes from your Locul cloud brain in any AI chat.
Bounded KVP, RAG search, and wipe receipts for agent jobs over remote MCP
The team's shared memory that reaches an AI before it starts work. Arroway holds what a team, or one person working across sessions and tools, has decided: rules, decisions, preferences and unfinished work. Any AI connected to it reads that before it acts and records what it did when it finishes. Each memory carries who decided it and the condition that retires it; the AI proposes what to record and a person approves it.