Hindsight gives agents retain/recall/reflect over four memory networks — world, experience, opinion, observation — via per-bank MCP endpoints.
Yes, Hindsight is open source under the MIT license.
Hindsight is free to use.
Yes, Hindsight can be self-hosted (the source is available under the MIT license).
Hindsight is an agent memory system exposing retain/recall/reflect over four memory networks — world, experience, opinion, observation — with per-bank MCP endpoints and 60+ integrations. Open source: yes (MIT); self-hostable via docker run with PostgreSQL or Oracle AI Database backends; free OSS (vectorize.io offers an optional hosted version). It has ~39.9k stars and is active (~3,257 commits).
Hindsight gives an agent a structured, long-term memory rather than a single undifferentiated store. It separates memory into four networks — world (facts about the domain), experience (what happened), opinion (judgments formed), and observation (what was seen) — and exposes three operations across them: retain (write), recall (read), and reflect (synthesize). Each memory bank has its own MCP endpoint, so an agent addresses the right kind of memory directly, and the project ships 60+ integrations including Claude Code, Cursor, CrewAI, LangGraph, and n8n. You self-host it with docker run backed by PostgreSQL or an Oracle AI Database. Open source: yes (MIT); self-hostable; free OSS.
A GTM agent that forgets is a liability: it re-asks answered questions, loses account context between sessions, and cannot build a durable view of a prospect. Hindsight offers a shaped memory for exactly that — separating world facts, lived experience, formed opinions, and raw observations, each addressable over MCP — so an outbound or account agent can retain, recall, and reflect across a long relationship, self-hosted on your own PostgreSQL. Open source: yes (MIT); self-hostable; free OSS. The honest read: the four-network model plus per-bank MCP is a serious, well-adopted design (~39.9k stars, 60+ integrations), but "state-of-the-art on long-term memory" is the vendor's unbenchmarked claim, and self-hosting means running a real database — evaluate recall quality on your own data before it becomes the agent's source of truth.