
ChainMemory
Mem0
Agentmemory
Memori
Tempreon
cognee
TheSecondBrain.dev
Suprflo
ConstellationDev
CodeMap4AI
Sourcegraph
ChainMemory gives your AI agents persistent memory that belongs to YOU โ not to a single vendor.
Save a memory in ChatGPT, recall it in Claude or Gemini. Available via Chrome extension, MCP server (npm), or REST API. Every memory gets a cryptographic fingerprint and project states are anchored with Merkle proofs, so anyone can independently verify integrity โ no trust required.
Memories consolidate into a structured Project Brain (decisions, milestones, risks) instead of a pile of raw notes. Multi-agent native: Claude, Cursor and GPT share one consolidated state. Free tier available.
AI coding agents waste most of their context window grepping files and guessing at code structure. Constellation gives them a persistent, team-wide knowledge graph of your codebase (symbol search, dependency graphs, impact analysis) delivered via MCP so every token goes toward reasoning, not discovery.
ChainMemory
ConstellationDevNo features have been listed yet.
Mem0 - Your private, local memory layer for all AI tools
CodeMap4AI - AI tools guess less when they see the full picture. CodeMap4AI builds a structured map of your codebase. Try it free.
Agentmemory - Persistent memory for Claude Code, Codex & coding agents
Sourcegraph - Sourcegraph is a free, self-hosted code search and intelligence server that helps developers find, review, understand, and debug code. Use it with any Git code host for teams from 1 to 10,000+.
Memori - Persistent memory from agent trace, not just conversation
Tempreon - A personal memory layer for your AI tools, connected over MCP.