zinfradb is a single-process database for AI apps: vector, graph, lexical, and hybrid search with durable jobs in one C++20 binary. Built for RAG, agent memory, and retrieval-shaped products. Fuses vector similarity, BM25 lexical, and graph evidence in one query with caller-tunable weights and per-result explain. Top of the ANN benchmark board at recall ≥ 0.95. One docker run, admin UI included. Source-available under BSL 1.1.
