yadgar is an open-source persistent memory engine designed for Claude Code and cognitive architectures. It supports advanced features like heat decay, sleep consolidation, and surprise-gated storage, making it suitable for developers working on AI, neuroscience-inspired systems, or knowledge graphs.
yadgar sits in PulseGate's Frameworks & SDKs category. Providing developers with a persistent memory engine for cognitive architectures and knowledge graph storage. It is built as an open-source project for developers building cognitive architectures or AI systems. yadgar is open source under the Apache-2.0 license. yadgar is available on the command line, and it can be self-hosted.
Behind yadgar is maxagahi, and the product first shipped in 2026. Key capabilities include persistent memory, heat decay, and sleep consolidation. It exposes integrations via an MCP server.
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