knowledge MCP servers & tools

Hindsight: Agent Memory That Works Like Human Memory - Built for AI Agents to manage Long Term Memory

Memory manager for AI apps and Agents using various graph and vector stores and allowing ingestion from 30+ data sources

Memory that reasons: continual learning for stateful agents. Better context, fewer tokens.

Graph-vector memory for AI assistants using FalkorDB and Qdrant

Persistent memory for AI agents, governed by the human and stored on their own machine.

XMemo is user-owned memory for AI agents over a hosted Streamable HTTP MCP endpoint. Save, search, recall, and manage scoped memories across Copilot, Claude, ChatGPT, IDEs, and CLIs. https://xmemo.dev/mcp

Persistent cognitive memory for Claude Code. Cloud-first with semantic search, AI-powered extraction, and project scoping. Zero local databases.

Persistent file-based memory for AI agents: inspectable, versionable, fully local.

Self-improving learning engine for Claude Code. Extracts signals from every session (corrections, successes, confusion), runs periodic reflections, and evolves behavioral frameworks through evidence tiers (hypothesis → observed → validated). Frameworks that keep working get promoted, bad ones get retired. 9 MCP tools, automatic hooks, phase-adaptive learning. Single dependency, local-only. npx claude-soul init --starter

Local-first, LLM-agnostic memory layer for AI assistants.

Persistent memory for AI agents — 98%+ retrieval recall, 99% token savings, 44 tools

Private context layer for AI agents: web, docs, code search, dep graph, memory, planning.

Cognitive memory engine with 5,100+ knowledge modules, circadian rhythm awareness, and emotional state tracking (PAD model). Hybrid search (PostgreSQL + Qdrant vectors + Valkey cache), per-user memory isolation, and multi-protocol support (MCP, REST, OpenAI, LangChain, A2A). npx @celiums/memory Website

Query and summarize your chat messages with AI prompts.

Hierarchical memory engine for AI agents with automatic decay, promotion, semantic dedup, and self-organizing topic tree. Single Rust binary, zero external dependencies.

Local memory daemon for any MCP-over-stdio client with three-tier storage (episodic/semantic/procedural). Own SQLite + hnswlib store (Hippo) with bge-small-en-v1.5, MIT-licensed community-detection reranking (MOSAIC), and sleep-cycle consolidation. AES-256-GCM encrypted at rest, no telemetry. Verbatim recall >=99% and post-contradiction Rescue@10 1.000 at honest scale. Ambient capture via shell hooks. Windows support in beta.

Persistent AI memory brain for Claude Code, Cursor, Copilot, Windsurf, Cline & Zed. sessionstart() briefs your AI on last session, lessons, and open tasks in one call. 84 tools — Team Brain, semantic BM25+ search, Team Telepathy, Ambient Git Learning, Memory Crystals, Analytics, and managed Valkey/Redis. npx @cachly-dev/init — free tier, no credit card. Website

Local memory for AI agents. One SQLite file on your machine — no cloud, no account.

Persistent memory for AI agents — verbatim conversations, searchable by meaning.

Digital identity layer for AI — your bio, career, skills, interests, and projects always available to every AI tool. Auto-generates profile from 342+ public APIs (GitHub, Medium, Strava, Goodreads, etc.), 13 real-time plugins (Spotify, Last.fm, Steam), YAML-based profiles with privacy-first local storage. Works with Claude Desktop, Cursor, Windsurf, and any MCP client.

Local-first cognitive memory for AI agents. FSRS-6 scheduling, smart ingest, SQLite storage, portable sync, embedded dashboard, and optional Cognitive Sandwich hooks for Claude Code, Cursor, Codex, and other MCP clients.

Read Samsung Notes: typed text, tables, handwritten pages, photos and PDFs. Never changes a note.

Agentic Retrieval Augmented Generation (RAG) with LanceDB

PMLL Memory MCP — persistent KV context memory and Q-promise deduplication.

Chat with 36 legendary founders & investors (Elon Musk, Warren Buffett, Steve Jobs, CZ). AI personas with authentic voices, frameworks, and principles. No API key required.

AI memory across Claude, ChatGPT, Gemini, and Cursor. Save, search, and recall context everywhere.

Universal persistent memory and knowledge retrieval layer for AI agents and LLMs.

Recall past Claude Code conversations from any project. Lists and searches your sessions, then loads one on demand as clean, compact Markdown — with outline, turn-range, and in-session search for large sessions. Read-only over local /.claude transcripts; collapses tool calls to stay under the context cap. npx -y memocall

Agent-agnostic memory backend that preserves continuity between humans and AI over time.

Open, local-first engram memory for AI agents: read, correct, delete; shared over MCP.

Local-first memory and session continuity for AI coding agents over MCP. No cloud, no telemetry.

Persistent memory for AI agents with Ebbinghaus forgetting-curve decay, hybrid BM25+vector retrieval, and entity graph for multi-hop reasoning. Memories auto-prune by importance and recall rate. Built-in browser dashboard, multi-agent support, and yourmemory ask for zero-API-call local queries. pip install yourmemory

Ebbinghaus-based persistent memory for Claude. Memories decay with time, strengthen on recall.

Local-first AI context and memory server for cross-tool coding continuity.

Sovereign encrypted memory for AI agents. Sealed on your machine. Start free: say Join SAIHM.

Long-term memory for AI coding tools via vector search (Qdrant).

Institutional memory for AI agents with real BFT consensus. 4 application validators vote on every memory before it's committed — no more storing garbage. 13 MCP tools, runs locally, works with any MCP-compatible model. Backed by 4 published research papers.

An MCP server implementation that provides tools for retrieving and processing documentation through vector search, enabling AI assistants to augment their responses with relevant documentation context

An AI agent's own long-term memory, on your machine. Needs a one-time: npx anairyspirit setup

Agent memory MCP server with 4-type cognitive memory, hybrid search, and TTL-based forgetting.

Adaptive Memory MCP server - SQLite-backed memory for OpenCode

Persistent memory for AI coding agents. #1 on LongMemEval. 26 MCP tools. Local-first.

Versioned, structured memory for AI agents. Stores facts as keypaths with full version history, automatic conflict detection, and O(1) token retrieval.

Your agents share what they learn. Semantik finds it by meaning, with no topic names to agree on.

Typed record store + hybrid search over MCP: deterministic lookups + semantic memory, per-customer.

Efficient context management: code search, evidence packs, and memory for coding agents.

Persistent memory for AI agents. recall, remember, checkpoint — soul preservation.

Persistent user identity across AI tools. Stores preferences, lessons, and decisions as local JSON; 13 core MCP tools share them with Claude Code, Cursor, Codex, and any MCP client. Knowledge governance (staging→verified), AES-256-GCM encryption, cross-tool sync. pip install piia-engram

A lightweight, structured, token-efficient local-first MCP memory server

Local memory and context retrieval for AI agents through CueMap.

Automatic project memory for Claude Code. Also works with Cursor and Codex.

An MCP memory server. One memory your agents share — across models, devices and apps.

Local-first LLM orchestration: memory, knowledge, state, routing, swarm, API discovery, plugins.

Permanent blockchain memory for AI agents.

Persistent memory for AI agents: L1/L2/L3, web compression, threads.

Persistent memory for Claude Code, Cursor and Codex. Facts retire when they change.

Portable, user-owned AI memory packs: read, validate, fingerprint, diff, and observe

Persistent memory and virtual filesystem MCP server for AI agents.

Persistent memory + git snapshots for Claude Code. Never lose context or code.