Letta

More in Memory

• Khayal

  Khayal is a local-first, privacy-focused second brain application that allows users to capture various types of content, including text, images, and URLs. It features semantic and keyword-based search capabilities, along with proactive connections to related thoughts and ideas, enhancing the user's ability to organize and revisit their captured information.

• pgGraph

  pgGraph is a PostgreSQL extension that enables users to perform graph search, traversal, shortest path, and relationship queries directly on standard PostgreSQL tables. It enhances existing Postgres data with graph database capabilities, allowing for efficient exploration of relationships and connections within the data.

• Graphiti

  Temporal knowledge graph framework for AI agents. Builds evolving graphs from conversations, enabling time-aware memory retrieval.

• Zep

  Long-term memory service for AI assistants. Stores, summarizes, and retrieves conversation history with temporal context.

• pgvector

  Open-source vector extension for PostgreSQL. Store, index, and query embeddings directly inside your existing Postgres database.

• Neo4j

  Leading graph database for knowledge graphs and connected data. Pairs with LLMs to power GraphRAG and entity-based memory.