Open SourceLibraryFree

Basic Memory

MCP server (AGPL-3.0, ~3.5k stars) whose whole job is persistent agent memory stored as plain Markdown on your machine, designed to live inside an Obsidian vault so you read, edit and graph the same notes the agents write. Semantic search, multiple projects. Because it is one MCP server, every MCP-capable agent (Claude Code, Codex, Cursor, Cline) can point at the same store and share one memory. Honest catch: it is not automatic journaling, it writes when told or when a skill makes it, and AGPL-3.0 carries network-copyleft obligations if you ship a modified version to others.

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Alternatives

obsidian-mcp

1 workflow use Basic Memory

AgentsFreeMachine-verified

One shared memory for every coding agent: prove the configs actually point at the same server

Wire a Markdown memory MCP server (Basic Memory or an Obsidian MCP) into Claude Code, Cursor and Cline, and prove with CI that all three resolve to one server, that a write-the-memory house rule exists, and that the vault is under git before any agent gets write access.

ObsidianBasic Memory· intermediate