memory MCP servers & tools

Local-first persistent project memory for AI coding agents across MCP clients and sessions.

Persistent memory infrastructure for AI agents. Identity, knowledge graph, and search.

Penfield: persistent memory with hybrid search (BM25 + vector + graph), 24 relationship types for knowledge graphs, context checkpoints for cognitive handoff, artifact storage, and personality system. Works across Claude, Cursor, Windsurf, and any MCP client.

Zero-config persistent memory for AI agents with local SQLite. Mind Palace web dashboard, time travel (rewind/replay sessions), agent telepathy (cross-client memory sharing), code mode templates, morning briefings, and progressive context loading. 25 tools, 6 resources, 4 prompts.

Session memory for coding agents: local-first recall, drift detection, on-device inference.

Correction-first agent memory. Precision KPI tracks if agents heed warnings. 5 layers, local-only.

Auditable context control plane and MCP server for AI coding agents. Compresses context 70–95% (BM25 + entropy + dep-graph knapsack), stabilizes prompt prefixes for provider cache discounts, routes easy tasks to cheaper models (RAVS Bayesian router), and verifies answers locally with WITNESS hallucination guard (0.844 AUROC, $0, 3 ms). MemoryOS adds local budget-aware working/episodic/semantic memory with decay, safety scanning, and durable persistence. 38 agent integrations (Cursor, Claude Code, Codex, Aider, and more). Ships as MCP server (entroly serve), HTTP proxy, or Python/Rust library. Apache-2.0, local-first. pip install entroly

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

Free, open-source memory for Claude Code. Remembers why decisions were made and maps your code. Your own database (SQLite, Postgres or MongoDB), no cloud, no subscription.

Cognitive memory for AI agents with Hebbian learning, 3-tier architecture, and knowledge graphs. Single 15MB binary, runs offline on edge devices.

Universal persistent memory for AI coding tools. Semantic code search, knowledge graphs, impact analysis, and decision tracking. 90.0% on LongMemEval-S. Works across Cursor, Claude Code, Windsurf, and any MCP client. npx -y @contextstream/mcp-server

Persistent intelligence infrastructure for agentic development that gives AI coding assistants cumulative memory and pattern learning. Hybrid TypeScript/Rust implementation with local-first storage using SQLite + SurrealDB for semantic analysis and incremental codebase understanding.

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

Graph-vector memory for AI assistants using FalkorDB and Qdrant

Persistent memory + FTS5 full-text search for Claude Code conversation history. Indexes /.claude/projects/ JSONL into SQLite, exposes 10 MCP tools (store/recall/search memories, list sessions, get summaries) plus prompts. Includes a web UI for visual exploration with themes and exports. Works with Claude Code, Cursor, Codex, Windsurf, and any MCP-compatible client. npm install -g @kunwarshah/claudex

Persistent, local-first AI memory: a semantic knowledge graph of plain Markdown files that humans and LLMs both read and write. Works with any MCP client, with optional cloud sync and team workspaces.

Graph memory that dreams: Neo4j knowledge-graph memory for AI agents with hybrid search

Persistent working memory and invariant steering MCP server for AI coding agents (Claude Code, Cursor, Windsurf). Captures architectural decisions, enforces project rules with pre-commit audits, and supersedes obsolete facts with temporal lineage. SQLite-first, zero Docker, <350 tokens

MCP server for Obsidian vaults — hybrid search, notes & files, memory, tasks, link graph, OAuth-protected.

Verified, git-native memory for coding agents. Memory is plain JSON packets committed in your repo, each checked against the code it cites — hallucinated citations rejected at write, stale or changed memory withheld at recall, plus diff-time stale-catch. Local-only (BM25 + vectors), no account, no API key. npx -y @kage-core/kage-graph-mcp install

Give Claude semantic search + knowledge graphs over your Obsidian vault (Smart Connections)

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

Local-first, auditable memory layer for Codex, Claude Code, and MCP clients. Stores scoped user/project memory in SQLite or Postgres, exposes read-only recall, trace, stats, and artifact tools by default, and supports opt-in governed writeback with review, forget, and audit controls. Published as io.github.hjqcan/goodmemory in the official MCP Registry.

Local-first persistent memory for AI coding agents.

Persistent memory, identity, shared workspaces, skills and tasks for AI agents

MCP server for Memanto - persistent semantic memory for any MCP-compatible agent

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

Markdown knowledge base as agent memory. Runs against the notes directory it is started in.

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

Cross-session memory for AI agents - knowledge graph, scoring, semantic search

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

Persistent, self-evolving memory plugin for Claude Code. Background miner extracts durable lessons (decisions, conventions, bug fixes) from completed sessions via Claude Haiku, stores them as human-readable markdown in an Obsidian vault, and assembles query-tailored context briefings at session start. Local-first, no cloud, no API keys. Self-healing install via uv bootstrap shim, /cortex-doctor preflight, graceful FTS-only degraded mode when claude CLI missing. MIT.

Shared, persistent memory for AI assistants, built on the Zettelkasten method.

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 memory layer over the session histories coding agents already write (Claude Code, Codex CLI, opencode): lexical search, recall tools, session-start auto-recall, secret redaction at index time, cross-machine sync over SSH.

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

Local-first personal memory and model server for trusted MCP agents on macOS.

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

Git-native project memory for coding agents: Markdown source of truth committed to your repo, reviewable staged updates (review --diff → apply), secret/PII-safe, branch-aware — no cloud, no vector DB.

Persistent knowledge graph MCP server for neurodivergent thinking. BM25 search, no cloud LLM.

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

Drift-aware cross-agent memory · MCP/A2A · LongMemEval-S 56.6% · 1/15 Zep cost

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

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

Local-first cross-agent memory with a 6-layer structure, Ebbinghaus-style forgetting curve, and drift detection that catches when code diverges from past decisions. One SQLite file shared across Claude Code, Cursor, Codex, and Gemini — no account or API key. npx linksee-memory

Offline persistent memory for AI coding agents — 37 tools, 80% fewer calls, no LLM

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.

Local-first memory and judgment layer for AI coding agents. Captures issues, failed attempts, fixes, and decisions in readable Markdown + JSONL, re-injects them into future sessions, and warns at git commit before you repeat a mistake. 14 tools, works with Claude, Cursor, Antigravity, and Codex.

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

Persistent memory with knowledge graph visualization, semantic/hybrid search, cloud sync (S3/R2), and cross-session context management.