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Nodedb: The memory & storage engine for AI agents. It is listed under Development & Code on AI Registry as a free tool.
The tools below are approved listings in the same category, ordered by how closely their tags match Nodedb. This is an automatic list. We have not written a researched verdict for Nodedb yet, so treat it as a shortlist and check each vendor's pricing page before switching.
Built from each tool's listing. Vendors can update their own listing after claiming it.
Make your agents learn from experience.
Agentic Context Engine, usually shortened to ACE, is an open source Python framework from Kayba that lets AI agents improve from their own experience without fine tuning, training data or a vector database. It keeps a Skillbook, a persistent collection of strategies that evolves with every task, and feeds those strateg...
TypeScript AI agent framework: cognitive memory, runtime tool forging, multi-agent orchestration, 11 LLM providers.
AgentOS is an open source TypeScript runtime for autonomous AI agents, distributed as an npm package from Framers. It combines graph based orchestration, a cognitive memory system, streaming guardrails and a voice pipeline in one library, with support for 11 LLM providers. It is aimed at TypeScript developers building...
Give your AI a real, persistent memory.
AI Memory Vault is a free memory system for Claude Code published by the creator behind jaredrhod, who shares practical AI setups for business owners. The vault is a folder of plain text files on your own computer: Claude Code reads it at the start of every conversation and writes to it as you work, so the assistant ke...
Persistent Agent Workspace — AI agents that remember, collaborate, and never start from zero.
AIPass is a persistent agent workspace that sits inside a project folder and gives Claude Code agents memory and coordination between sessions. Instead of re explaining a project each time a terminal opens, an agent reads its own memory files, knows its role, and resumes where it left off. It suits developers who run ...
ArcadeDB Multi-Model Database, one DBMS that supports SQL, Cypher, Gremlin, HTTP/JSON, MongoDB and Redis.
ArcadeDB is an open source multi model database developed by Arcade Data Ltd. A single engine natively stores graphs, JSON documents, key value pairs, full text search indexes, vectors and time series data, with full ACID transactions, so an application that needs several data shapes does not have to run several databa...
Git for MongoDB — branch, time-travel, and undo your data.
Argon is open source branching and merge for MongoDB, built for AI agents. It gives each agent its own branch of the data, checked out as a real MongoDB database, so the agent can test changes, look back at earlier states and propose edits that a person reviews as a diff before merging anything into the main data. It ...