braindb

▶ Watch the walkthrough: youtu.be/AJ7iMOj4vvA — Karpathy's LLM wiki idea, on a SQL database, driven by REST APIs.

A memory database and REST API for LLM agents. Store and retrieve thoughts, facts, sources, documents, and behavioral rules — with fuzzy + semantic keyword search, graph traversal up to 3 hops, temporal decay, and always-on rule injection. Built to be driven externally by an LLM via HTTP calls.

It also ships with its own internal agent (OpenAI Agents SDK + LiteLLM with pluggable providers — DeepInfra is the recommended default, with NIM / local vLLM / others available via config) so external callers can talk to BrainDB in plain English via a single endpoint instead of orchestrating individual API calls.

Why BrainDB?

Inspired by Karpathy's LLM wiki idea — give an LLM a persistent external memory it can read and write. BrainDB takes that further by adding structure, retrieval, and a graph on top of the "plain markdown files" baseline.