PhoenixAI Launches Contextbase to Unify Context for AI Agents
MENLO PARK – November 04, 2026 -- PhoenixAI, the creator of the StarRocks open source project, launched Contextbase, a system that stores semantics, knowledge, memory, traces and evaluations in a single governed database for AI agents. The company unveiled the product at its NEXT QUERY 2026 Data + AI Infrastructure Summit. Private preview opens November 4.
Contextbase replaces four separate tool categories with one store
PhoenixAI says most agent stacks scatter context across a semantic layer for definitions, a vector store for documents, a memory service, and observability tools for traces and evaluations. Each keeps its own copy of the data and its own permissions. Contextbase consolidates them.
The system holds five types of context: