A local, transactional hierarchical memory system for AI coding agents. It provides auditable JSON-backed memory, SQLite FTS5 hybrid retrieval, lifecycle hooks, branch isolation, and an optional stdio MCP server.
Prices and medians update for the tier you select. Caution: thin market — treat statistics as indicative.
Ranked by how closely each one matches Hierarchical Attention Memory · HFA 2.2's job. Prices show each provider's Pro state; entry prices are labelled as such. Unpriced products still belong to the market.
Thin market — few comparable priced products; treat statistics as indicative.