persistent memory system for AI agents — single SQLite file, no external server, no API keys. free and opensource – BrainCTL

Every agent I build forgets everything between sessions. I got tired of it and built brainctl.

pip install brainctl, then:

from agentmemory import Brain

brain = Brain(agent_id="my-agent")

context = brain.orient() # picks up where last session left off

One SQLite file. FTS5 search. Knowledge graph. Session handoffs. Write gate that rejects redundant memories. MCP

server with 192 tools for Claude Desktop/VS Code. LangChain and CrewAI adapters included.

No outbound server, no API keys, no LLM calls for any memory operation. MIT licensed.

Best part is I dont want any of your money.

GitHub: https://github.com/TSchonleber/brainctl

PyPI: https://pypi.org/project/brainctl/

Happy to answer questions about the architecture.