EverOS is an open-source memory runtime that stores conversations, files, and agent trajectories as readable Markdown, then syncs SQLite and LanceDB indexes for fast retrieval and self-evolving reuse across coding assistants and workflows.
OpenPAXM is an open-source memory adapter that carries decisions, conventions, and working context across Codex, Claude Code, OpenCode, Pi, and MCP clients. It starts with local SQLite and can route recall and writes to multiple supported memory providers.
Opendeja-vu is an open-source Go binary that turns existing Claude Code, Codex, OpenCode, Cursor, Gemini CLI, Grok Build, and aider histories into searchable memory. It exposes MCP recall, optional session-start auto-recall, secret redaction, and machine-to-machine sync without a hosted service or downloaded model.
OpenPersome is an open-source macOS runtime that captures focused cross-app activity after permission, builds an inspectable Point/Line/Face/Volume/Root model of one person, and exposes durable Markdown memory plus provenance tools to Claude Code, Codex, and other trusted MCP clients—private by default under ~/.persome.
OpenEmulo is an open-source local engine that extracts user-authored messages from Claude Code, Codex, Copilot CLI, OpenCode, and Google Antigravity logs, mines work/design/writing/video traits with dated receipts, and installs the resulting profile as native plugins, skills, adapters, or an MCP `load_emulo_profile` tool. Optional Emulo Pro adds managed encrypted continuity across devices without uploading raw session evidence.
OpenGlobal Agent Memory is an open-source local-first memory system (PyPI `global-memory-mcp` 0.1.6, MIT) that keeps Markdown as the canonical vault, exposes a frozen MCP v1 contract to Claude Code, Codex, and other MCP clients, and lets owners approve candidates, protect sensitive memories, and administer projects from a local dashboard—with SQLite FTS5 keyword search and optional Ollama + sqlite-vec hybrid ranking.
OpenMemmy (MemTensor/memmy-agent, MIT, v1.0.3) is a local-first personal memory hub and agent runtime: it imports history from Cursor, Claude Code, Codex, OpenCode, OpenClaw, and Hermes Agent into a MemOS-powered memory layer, exposes that memory to external agents via Skills/MCP and a memmy-memory CLI, and runs tasks through a desktop app, CLI/TUI, or OpenAI-compatible API. Signup grants 30 million trial tokens; afterward use BYOK with your own providers while keeping memory and app state on the machine by default.
OpenBest when the product needs explicit remembered facts and preference updates across conversations.
OpenBest when you work across multiple AI clients and need one durable memory graph for decisions, threads, and working context—not a memory SDK to embed in your own product.
OpenA memory library for building stateful agents with dialectical user modeling and peer cards.
OpenAn open-source context database that manages agent memory, resources, and skills through a filesystem paradigm.
OpenAgent memory that learns through knowledge graphs and cross-memory synthesis.
OpenA compositional memory system using HRR algebra with local SQLite storage, FTS5 search, and trust scoring.
OpenRetainDB is an open-source AI memory database for coding agents — local-first hybrid vector + BM25 retrieval with built-in noise filtering for cross-session context.
OpenA portable memory layer for autonomous coding agents with pre-compressed extraction and knowledge tree organization.
OpenBest when memory needs relationships, temporal context, and retrieval over evolving user or organization knowledge.
OpenBest when the agent's value depends on ingestion, indexing, retrieval, and structured access to private knowledge.
OpenBest when agent behavior must be represented as explicit nodes, edges, state, and recovery paths.
OpenBest when agents need persistent identity, multi-session memory, and explicit control over what gets stored, updated, and recalled over time.
Open