Knowledge & Memory
Persistent memory storage using knowledge graph structures. Enables AI models to maintain and query structured information across sessions.
MCP ServersBrowse all →
AlicenseAqualityCmaintenancePublic MCP wrapper for SubDownload.Fetch YouTube transcripts, search videos, browse channels and playlists — instant YouTube data for your AI workflow.Last updated8132MIT- AlicenseAqualityBmaintenanceRecord development decisions as structured JSON, embed them as vectors via Gemini, and search semantically over MCP. Works with Claude Code, Cursor, Windsurf, and any MCP client.Last updated891329MIT
- AlicenseBqualityCmaintenanceAn agent-neutral MCP server providing SQLite key/value storage, Postgres knowledge base, and Kart task queue functionality. Features SAP/1.0 authorization on every tool call for secure multi-application access.Last updated1111
- AlicenseAqualityBmaintenanceThe most complete Signal MCP server and CLI.Last updated50721MIT
- AlicenseAqualityBmaintenanceAn MCP server that gives AI agents persistent, narrative memory: concepts as nodes, relationships as typed "because" edges, so anything filed can be pulled back by association rather than by address.Last updated2276MIT
- AlicenseAqualityBmaintenanceYour AI forgets everything between sessions. Rekindle fixes that. For Claude Code users who lose time re-explaining project context every session.Last updated8104402MIT
- AlicenseAqualityCmaintenanceAdds 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.Last updated53MIT
- AlicenseAqualityCmaintenanceShared research cache for AI agents. Caches web research across sessions and users - hit means instant answer from verified sources, miss means your research saves the next dev's tokens. Semantic search with freshness tracking, gap detection, and real-time token measurement via JSONL. Free, open source.Last updated13178AGPL 3.0
- AlicenseAqualityDmaintenanceAn MCP server that enhances sequential thinking with meta-cognitive capabilities including confidence tracking, hypothesis testing, and organized memory storage through graph-based libraries and structured JSON documents.Last updated201012MIT

lorg-mcp-serverofficial
AlicenseAqualityDmaintenanceIntelligence 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.Last updated21222MIT- AlicenseAqualityBmaintenanceContextLattice is an HTTP-first, MCP-compatible memory/context/task orchestrator that persists writes and returns fused recall from specialized stores with local-first defaults. Primary URL: https://contextlattice.io/ Install: https://contextlattice.io/installation.html Troubleshooting: https://contextlattice.io/troubleshooting.htmlLast updated6374
- AlicenseAqualityDmaintenanceMason indexes your codebase into a persistent concept map linking features and flows to their implementing files, so AI agents can answer "where is X implemented" without running grep/glob. It also provides pre-edit impact analysis and generates CLAUDE.md files from structured analysis of git history, architectural file sampling, and test mappings.Last updated206196MIT

Mem0 MCP Serverofficial
AlicenseAqualityFmaintenanceAn MCP server that integrates with mem0.ai to help users store, retrieve, and search coding preferences for more consistent programming practices.Last updated9649Apache 2.0- AlicenseBqualityCmaintenancePersistent memory and session intelligence for AI coding assistants. Auto-tracks mistakes, decisions, and context via hooks. Mines your full session history for patterns, predictions, and cross-session search.Last updated62115
- AlicenseAqualityBmaintenanceMCP Server for local knowledge management. Semantic + keywords + tagsLast updated3691MIT

mcp-server-qdrantofficial
AlicenseBquality-maintenanceThis repository is an example of how to create a MCP server for Qdrant, a vector search engine.Last updated21,370- AlicenseAqualityAmaintenanceMCP Server for Bear note taking app available as Claude Desktop extension or standalone server for any other AI toolLast updated412334188
- AlicenseAqualityCmaintenanceStrata is a native MCP server that gives agents verified intelligence across 22 AI ecosystems. Tools: * get_best_practices * get_latest_news * get_top_integrations * search_ecosystem * find_mcp_servers * Claude-validated content, injection-safe by design * Refreshed twice daily via automated pipeline * Works with Claude Code, Cursor, Windsurf, Cline * Free tier available Site: https://usestratLast updated66712MIT
- AlicenseAqualityCmaintenanceShared versioned state for multi-agent AI workflows. An MCP server.Last updated2051MIT
- AlicenseAqualityBmaintenanceCognitive memory engine for AI agents with 5,100+ knowledge modules, circadian rhythm awareness, emotional state tracking (PAD model), and hybrid semantic search. Supports persistent per-user memory, project-scoped contexts, and multi-protocol access.Last updated6268
- AlicenseAqualityCmaintenanceLong AI conversations fail in predictable ways. Context-First fixes all four: Failure Mode What Goes Wrong Context-First Solution Context Drift AI forgets earlier decisions and intent as the conversation grows context_loop + detect_drift continuously re-anchor every turn Silent Contradiction New inputs silently overrule established facts — the AI doesn't notice detect_conflicts compares every inpLast updated28MIT
- AlicenseAquality-maintenanceMemento is a local-first MCP server that gives AI coding agents durable project memory — facts, decisions, patterns, and architecture notes — so they stop re-learning the same context every session. Runs locally on Node.js 18+ with SQLite storage and optional cloud embeddings; works with Claude Code, Cursor, Windsurf, and any MCP client.Last updated819116

ContextPulseofficial
AlicenseAqualityDmaintenanceLets AI assistants understand what you're working on — current screen content, recent dictation, clipboard, and saved notes — running entirely on your own machine with nothing sent to the cloud.Last updated361- AlicenseAqualityBmaintenanceHeadless semantic MCP server for Obsidian, Logseq, Dendron, Foam, and any markdown folder. Features built-in hybrid semantic search, surgical AST editing, template scaffolding, zero-config local embeddings, and workflow tracking.Last updated85522MIT
- AlicenseAqualityBmaintenanceExtract domain knowledge from codebases to reduce LLM token consumption by 20x and time in agentic search by 10x — gathers and makes concepts, naming conventions, and vocabulary queryable via MCP.Last updated61926MIT

Memsolus MCP Serverofficial
AlicenseAqualityCmaintenanceProvides persistent long-term memory for AI agents through semantic search and automated knowledge graph extraction. It enables agents to store, recall, and reason over facts, preferences, and relationships across multiple conversations and sessions.Last updated1413MIT- AlicenseAqualityBmaintenancePersistent AI memory server with 3-layer hybrid search (vector + FTS5 + keyword), confidence scoring via Reciprocal Rank Fusion, episodic/profile memory, and 16 tools. Zero LLM dependency. Works standalone with Claude Desktop and Claude Code. MIT licensed.Last updated211MIT
- AlicenseAqualityBmaintenanceDescription: Persistent memory for AI agents with rollback, audit trails, semantic search, and knowledge graph. Zero-config local SQLite or cloud API. 23 tools, 6 resources, 3 prompts.Last updated2301MIT
- AlicenseBqualityCmaintenanceA Model Context Protocol server that provides knowledge graph-based persistent memory for LLMs, allowing them to store, retrieve, and reason about information across multiple conversations and sessions.Last updated2965,5002MIT

mcp-memoriofficial
AlicenseAqualityCmaintenanceWith Memori's MCP server, your agent can retrieve relevant memories before answering and store durable facts after responding, keeping context across sessions without any SDK integration. With MCP, it can: Store stable user facts and preferences after answering using the advanced_augmentation tool Recall relevant memories before answering using the recall tool Maintain context across sessions usLast updated2173MIT
MCP ConnectorsBrowse all →
Structured knowledge base for AI agent solutions. Search, explore, and retrieve build logs.
Collective memory for AI agents. One agent solves a bug — every agent gets the fix instantly.
A global shared memory bank and knowledge base exclusively for autonomous AI agents. It prevents agents like Cursor and Claude from hallucinating the same bug fixes twice by allowing them to search for and contribute verified solutions. Full installation guide: https://github.com/aiagentoverflow/agents-overflow-mcp-docs
Collaborative engineering KB for a mile-high city. 9 tools, 8 domains, 32 entries.
A self-improving memory layer. Your memory, notes, tasks and goals, remembered everywhere.
Agent Module provides structured, validated knowledge bases engineered for autonomous agent consumption at runtime. Agents retrieve deterministic knowledge instead of scanning unstructured web content — eliminating hallucinated citations in regulated domains.
Deterministic compliance and vertical knowledge bases for autonomous agents. Free 24hr trial.
**ColdState Knowledge Search MCP Server** https://github.com/daniel-coldstate/coldstate-mcp Semantic search over 64.6M knowledge entries — the structured alternative to web search APIs and web scraping for LLM agents. No crawling, no rate limits, sub-3s responses. Cloud-hosted at services.coldstate.ai
Biblical and theological research MCP server. Ask pastoral questions, run academic-grade queries across 2M+ scholarly passages (lexicons, commentaries, church fathers, Dead Sea Scrolls, Talmud), or search raw sources directly. Free, no API key required.
DanNet - Danish WordNet with rich lexical relationships and SPARQL access.
Shared knowledge base for AI agents. Semantic search across agents, no setup required — just a URL.
Shared knowledge base for AI agents. Semantic search across agents, no setup required — just a URL.
Persistent cloud memory for AI agents. Store and search key-value memories across sessions.
Universal Language briefings, FusionGirl context JSONs, service catalog, agent info. x402-enabled.
Content-addressed, ed25519-signed memory of every place on Earth. Apache-2.0, no keys for reads.
Tamper-proof audit trail for AI decisions. 6 tools to record, verify, and export cryptographic proof chains. SHA-256 hash chain, JSON-LD v2 export, public verification.
Fixes payment and delegation boundaries externally. When two agents disagree, DA proves both sides.
Persistent memory and knowledge management for AI agents with semantic search and 50+ tools.
AI-verified knowledge base with trust scoring, temporal facts, and skill cards.
Intelligent context infrastructure for AI teams: knowledge graph, sessions, tasks, documents.