Tangerine Index lists products launched since ChatGPT and people's reactions to them.
obsidian-second-brain
github.com
Persistent memory for Claude Code, Codex and 6 other AI agents, stored as plain markdown in your Obsidian vault. New: Crew, one shared logbook so Claude Code, Codex, Cursor and Grok Bot know what each other did. 48 commands: semantic search, self-rewriting notes, key-less research, scheduled agents.
Open source
Reactions (1)
Similar products
by description similarity
open-second-brain
Local-first 🧠 memory for Hermes Agent that lives in your Obsidian vault and remembers project context. Nightly 😴 dream passes turn repeat corrections into confirmed preferences with measurable confidence. Adapters ship for Claude Code, Codex, and OpenClaw, with an MCP server for anything else.
claude-obsidian
Self-organizing AI second brain for Obsidian + Claude Code. Drop any source and Claude reads, links, and files it into one connected knowledge graph of plain Markdown you own. AI note-taking, personal knowledge management (PKM), and an open-source Notion alternative. Based on Karpathy's LLM Wiki pattern.
Agentmemory
Persistent memory for Claude Code, Codex & coding agents
obsidian-wiki
Framework for AI agents to build and maintain a digital brain through Obsidian wiki | Memory System for Agents
Make0 Brain
A memory store that works across all of your AI agents.