Liath

The SQLite for AI agents

Liath is an embedded, programmable memory store for AI agents — the SQLite for AI agents. Agents write sandboxed Lua programs to query their own memory with custom retrieval, ranking, and filtering, instead of calling a fixed vector-DB API. It ships a KV store, vector search, and embeddings with zero infrastructure. Available as a Python package (pip install liath) and a Rust crate (liath-rs).

Highlights

• Agents write Lua to query their own memory
• Sandboxed execution — no file, network, or system access
• Embedded and zero-infrastructure — no server to run
• Rust core: fast, portable, single dependency
• Built-in KV store, vector search, and embeddings
• Python (pip install liath) and Rust (liath-rs) editions