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Agent Brains

AI second brains and agent memory

Second brains, LLM wiki kits, vault templates and memory servers that give your AI agent a memory it can read and write. Every brain is credited to its author, with setup steps for every major AI tool.

Results

129 brains

  • YourMemory

    Sachit.Mishra· by sachitrafa

    Agentic AI memory with Ebbinghaus forgetting curve decay. +16pp better recall than Mem0 on LoCoMo.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    Link-onlyRuns on installLow riskGitHub stars of the source repository272

  • LLM Wiki

    tonbi· by tonbistudio

    An open-source template for building LLM-maintained knowledge bases using structured markdown and automated workflows.

    LLM wiki kitClaude CodeOpenCode
    MITGitHub stars of the source repository271

  • (S)AGE — Sovereign Agent Governed Experience

    L33tdawg· by l33tdawg

    SAGE is a governed, BFT-consensus-validated memory and messaging layer for AI agents.

    Memory serverClaude Code
    Apache-2.0Runs code automaticallyMedium riskGitHub stars of the source repository265

  • Obsidian Headless

    ObsidianOfficial

    Headless client for Obsidian services

    Agent access toolClaude CodeClaude appsOpenAI Codex+11 more
    Link-onlyRuns on requestGitHub stars of the source repository247

  • ArcRift — Persistent Memory for AI Coding Tools

    Perma_Banned· by Eshaan-Nair

    A local-first memory layer that provides persistent RAG and knowledge graph context for AI agents and browser-based chat interfaces.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns on installLow riskGitHub stars of the source repository247

  • Vault-LD

    The Knowledge Graph Guys· by dfreytag

    An open specification for treating Markdown vaults as RDF knowledge graphs using YAML-LD frontmatter.

    Brain specOpenAI CodexGitHub CopilotCursor+6 more
    Apache-2.0Runs on requestLow riskGitHub stars of the source repository246

  • Memorizer

    PetabridgeOfficial· by Dario Griffo

    A .NET-based MCP memory server providing persistent, vector-searchable long-term memory for AI agents using PostgreSQL.

    Memory serverClaude CodeOpenCodeDevin (ex-Windsurf)
    MITGitHub stars of the source repository221

  • Distill

    Siddhant Khare· by Siddhant-K-code

    A context intelligence layer providing persistent memory and state management for LLM agents.

    Memory frameworkClaude apps
    MITRuns on installGitHub stars of the source repository198

  • llm-wiki

    Mehmet Gökçe· by Mehmet Goekce

    Build Karpathy's LLM Wiki with Claude Code.

    LLM wiki kitClaude Code
    MITRuns on requestGitHub stars of the source repository168

  • AKB — Agent Knowledge Base

    DnotitiaOfficial

    AKB — Agent Knowledgebase.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    Link-onlyRuns code automaticallyMedium riskGitHub stars of the source repository167

  • ObsidianOS: Work

    Ben Orozco· by benoror

    An Obsidian vault template equipped with AI agent skills for automated meeting workflows, vault maintenance, and team coordination.

    Vault templateClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns on requestMedium riskGitHub stars of the source repository165

  • Third Brain V8.1 Skills

    Markk-gao· by Mark393295827

    A verification-first agent skill framework for building persistent knowledge operating systems using Obsidian as a durable disk.

    LLM wiki kitClaude CodeOpenAI CodexGitHub Copilot+8 more
    MITRuns on installLow riskGitHub stars of the source repository140

  • membase

    UnibaseOfficial

    A unified memory layer for AI agents that provides persistent, cross-model knowledge storage via SDKs and MCP.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns on requestGitHub stars of the source repository139

  • MindBase — Karpathy's LLM Wiki, as a product

    Haobing(Frank) Chu· by frankchu91

    Karpathy's LLM Wiki idea as a product — an AI that builds and maintains a markdown wiki from your notes and sources.

    LLM wiki kitClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns code automaticallyMedium riskGitHub stars of the source repository137

  • Letta Agent SDK

    LettaOfficial

    A TypeScript SDK for managing stateful AI agents with persistent long-term memory across sessions and environments.

    Memory frameworkClaude CodeClaude appsOpenAI Codex+11 more
    Apache-2.0Runs on requestGitHub stars of the source repository116

  • Creating a brain, step by step

    Doctor DroidOfficial

    A deterministic, domain-agnostic memory layer for AI agents using structured context graphs.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns on requestLow riskGitHub stars of the source repository114

  • LLM Wiki

    jakevin· by jackwener

    An agent-native knowledge management system that compiles raw documents into an AI-maintained, Obsidian-compatible wiki.

    Brain appClaude CodeClaude appsOpenAI Codex+11 more
    Apache-2.0Runs on requestGitHub stars of the source repository107

  • Pensyve

    Major 7 Apps LLCOfficial

    A universal, open-source memory runtime for AI agents providing persistent storage for facts, conversations, and action outcomes.

    Memory serverClaude CodeOpenAI CodexGitHub Copilot+7 more
    Apache-2.0Runs code automaticallyGitHub stars of the source repository100

  • MirrorArc

    Ci Zhu· by cz1993

    Local-first, governed documentation for humans and AI agents—mirror Office, PDF, and GitHub sources into linked Markdown knowledge workspaces.

    LLM wiki kitClaude CodeClaude appsOpenAI Codex+11 more
    AGPL-3.0-onlyRuns on installLow riskGitHub stars of the source repository97

  • @pinkpixel/mem0-mcp MCP Server ✨

    Pink PixelOfficial

    A Model Context Protocol server providing persistent memory capabilities for AI agents via Mem0.

    Memory serverClaude CodeClaude appsOpenAI Codex+11 more
    MITRuns on installMedium riskGitHub stars of the source repository96

  • Semiont

    The AI AllianceOfficial

    A semantic knowledge platform that enables human-AI collaboration by anchoring AI-generated insights directly to source document passages.

    Memory framework
    Apache-2.0Runs on requestLow riskGitHub stars of the source repository93

  • AI Workspace Hub

    Benbor· by Benboerba620

    All-in-one AI 研究工作台：把 Codex / Claude Code / Cursor 变成有长期记忆的研究系统。wiki 摄入、研究闭环、快速筛选、假设追踪、播客、日报六大能力，零 API key 可跑基座。

    Vault templateClaude CodeOpenAI CodexGitHub Copilot+7 more
    MITRuns on requestLow riskGitHub stars of the source repository83

  • pin-llm-wiki

    Nenad Djordjevic· by ndjordjevic

    An automated workflow for building and maintaining a citable, repo-local knowledge base for AI agents.

    LLM wiki kitClaude Code
    Apache-2.0Runs on requestLow riskGitHub stars of the source repository76