Moirai: An AI Agent Runtime with Persistent Identity and Hybrid Memory

Moirai is an enterprise-grade AI agent runtime environment designed to address the current pain point of AI agents lacking long-term memory. It features persistent identity, hybrid long-term memory, time-series prediction, sandbox-isolated tool calls, and a multi-agent cluster with 184 roles. It is suitable for financial workflows, daily operations, research assistance, and continuous automation scenarios. The project is in the pre-alpha stage, using the AGPL-3.0 open-source license and offering commercial licensing options.

Most current AI agent systems have a fundamental problem: they lack true long-term memory capabilities. They "lose their memory" after each conversation ends, unable to retain interaction experiences and learning outcomes. This "goldfish-like" memory model severely limits their practicality in complex tasks. Moirai was created precisely to address this core pain point.

Moirai's core features include:

1. Persistent Identity: Grants agents a stable identity, maintaining self-awareness across sessions, accumulating experience, and building user relationships;
2. Hybrid Long-term Memory: Combines semantic, episodic, and procedural memory to flexibly switch between knowledge sources;
3. Time-series Prediction: Identifies data trends and predicts future changes to adjust strategies;
4. Sandbox-isolated Tool Calls: Ensures safe isolation and auditing of operations;
5. Multi-agent Cluster with 184 Roles: Supports specialized collaboration and dynamic combinations;
6. Chained Hash Event Log: Enables tamper-proof audit tracking and state replay.

Moirai adopts architectural highlights such as modular design (loosely coupled components for easy development and testing), scalability (supports horizontal scaling to handle large-scale agents), security-first approach (sandbox isolation + audit logs), and determinism guarantee (chained hash event logs ensure reproducible execution), embodying best practices in modern AI system design.

Moirai is particularly suitable for the following scenarios:

1. Financial Workflows: Uses time-series prediction to monitor market data, with audit logs meeting compliance requirements;
2. Daily Operations Automation: Multi-agent clusters process workflows in parallel, with persistent identity retaining business context;
3. Research Assistance: Long-term memory tracks research progress and experimental results;
4. Continuous Automation: 24/7 operation for monitoring, analyzing, and responding to events.

Moirai uses the AGPL-3.0 open-source license, allowing community contributions, transparent reviews, and free forking. It also offers commercial licensing options, providing enterprise users with compliance guarantees, professional support, and custom development services.

Moirai is currently in the pre-alpha stage. Core functions have been implemented but there are bugs and instability; APIs and architecture may change, so it is not recommended for use in production-critical tasks for now. Nevertheless, its technical vision and implementation capabilities are impressive, and it is expected to become an important infrastructure in the AI agent field.

For developers: Follow the Moirai open-source community and participate in code contributions and testing. For enterprise users: Choose open-source license or commercial authorization based on needs, and evaluate its application potential in financial, operational, and other scenarios in advance. It is recommended to wait for the project to mature before considering deployment in production environments.