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  • rabbithole

    shlokkhemani
    A
    license
    A
    quality
    B
    maintenance
    Rabbithole provides an infinite canvas for learning by allowing users to open documents, select text, ask questions, and receive answers that open as child documents, all running locally via an MCP server.
    4
    299
    MIT

  • okf-mcp

    teomarcdhio
    A
    license
    A
    quality
    C
    maintenance
    An MCP server that provides LLMs with full read/write access to an Open Knowledge Format (OKF) knowledge bundle, enabling structured, persistent long-term memory.
    11
    MIT

  • Open Kioku

    shivyadavus
    F
    license
    A
    quality
    B
    maintenance
    Open Kioku is the local-first code intelligence and evidence layer for AI coding agents (Claude, Cursor, Codex, Zed, and other MCP clients). Instead of letting agents blindly crawl files, guess blast radius, or read the entire repository repeatedly, Open Kioku gives them a precise, pre-indexed code index to build evidence-backed plans before they edit, and verify boundary limits after they edit.
    42
    9

  • Open Brain Knowledge MCP

    melvenac
    F
    license
    A
    quality
    D
    maintenance
    A persistent, cross-session knowledge base for AI agents that indexes session history into a searchable SQLite database with full-text search, enabling recall of past sessions, stored knowledge, and summaries.
    10
  • INITE Brain by inite-ai

    INITE Brainofficial

    inite-ai
    A
    license
    -
    quality
    A
    maintenance
    An open-source bitemporal knowledge graph that provides long-term memory for AI agents via a native MCP endpoint, enabling conflict-aware ingest and hybrid retrieval.
    32
    AGPL 3.0
  • Recall by RecallWorks

    Recallofficial

    RecallWorks
    A
    license
    -
    quality
    C
    maintenance
    Open-source MCP memory server for AI agents — persistent, searchable, tiered memory across sessions. Works over stdio (Cursor, Claude Desktop) or HTTP+SSE. MIT licensed.
    6
    MIT

  • Open Research KB

    vecbase-labs
    A
    license
    -
    quality
    B
    maintenance
    A local-first MCP server for building and querying PDF knowledge bases. It indexes PDFs into DuckDB and exposes evidence-grounded retrieval tools to separate corpus-backed answers from independent reasoning.
    7
    2
    MIT

  • Mnemo Cortex

    GuyMannDude
    A
    license
    -
    quality
    A
    maintenance
    Persistent semantic memory for AI agents — hybrid SQLite + FTS5 with DAG-based summaries, context compaction, and 7 MCP tools. Open source, self-hosted, zero API cost.
    149
    MIT

  • OpenRAG MCP Server

    janik96v
    A
    license
    -
    quality
    D
    maintenance
    An open-source MCP server for RAG over personal documents. Supports three parallel strategies — Traditional, Contextual, and Graph RAG — with all data stored locally for privacy.
    MIT

  • Open Brain MCP

    lazo99
    A
    license
    -
    quality
    B
    maintenance
    A self-hosted second brain MCP server that enables capturing thoughts with deduplication and semantic search using local embeddings and PostgreSQL with pgvector, all running on your own hardware.
    MIT

  • open-neural-substrate

    pedroknigge
    A
    license
    -
    quality
    D
    maintenance
    Enables Claude to access and manage a persistent, human-readable knowledge graph of neurons, with semantic search, memory consolidation, and local ownership.
    MIT

  • Hippocampus

    karrolcia
    A
    license
    -
    quality
    A
    maintenance
    Open-source MCP memory server providing persistent, cross-platform context for AI tools via a knowledge graph with encrypted storage.
    17
    13
    AGPL 3.0