Harness Memory

Harness Memory is an open-source tool that gives AI harness agents long-term memory. Users can choose a memory engine such as Mem0, Graphiti, Hindsight, or ReMe, or plug in their own, and connect it to agent harnesses like Claude Code, Codex, and Hermes. Memory can be shared across harnesses with fine-grained access control. It is available as an open-source Community Edition and on HarnessRouter Cloud.