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Memory as a Service (MaaS): Rethinking Contextual Memory as Service-Oriented Modules for Collaborative Agents (2506.22815v1)

Published 28 Jun 2025 in cs.HC

Abstract: This position paper aims to rethink the role and design of memory in LLM-based agent systems. We observe that while current memory practices have begun to transcend the limitations of single interactions, they remain conceptually grounded in "bound memory" in terms of design concept-where memory is treated as local state attached to specific context or entities, forming "memory silos" that impede cross-entity collaboration. To overcome this architectural bottleneck, this paper proposes the timely design perspective of "Memory as a Service" (MaaS). MaaS advocates decoupling memory from its conventional role as an interaction byproduct and encapsulating it as a modular service that can be independently callable, dynamically composable, and finely governed. At its core, MaaS leverages the duality of memory-its inherently private nature and its potential for public service-to grant memory controlled, on-demand interoperability across entities. This paper introduces a two-dimensional design space defined by entity structure and service type, illustrating how MaaS aligns with current memory practices while naturally extending them to cross-entity collaborative scenarios. Finally, we outline an open research agenda spanning governance, security, and ethical ecosystems, and call upon the broader research community to explore this shift toward service-oriented memory for collaborative agents operating across entity boundaries.

Summary

  • The paper introduces Memory as a Service (MaaS), a paradigm that decouples memory from agent architectures to overcome memory silos.
  • It employs service-oriented architecture principles to design independently accessible and composable memory modules governed by intent-aware policies.
  • The framework balances private and public memory aspects, enabling secure, permission-aware cross-entity collaboration in diverse applications.

Memory as a Service (MaaS): Rethinking Contextual Memory as Service-Oriented Modules for Collaborative Agents

Introduction

This paper introduces the "Memory as a Service" (MaaS) paradigm, which aims to address the limitations of current memory systems in LLM-based agent architectures. Existing systems treat memory as "bound memory," leading to "memory silos" that hinder cross-entity collaboration. Such silos arise from the current practice of embedding memory within specific agent entities, thereby impeding efficient sharing and interoperability. By reimagining memory as a service-oriented module, MaaS presents a framework where memory is decoupled from individual agent interactions and reconceptualized as a modular, independent service. This approach hopes to enable dynamic, controlled interoperability across different agent entities while preserving memory's inherently private and potentially public nature.

Core Concepts of MaaS

Decoupling Memory

MaaS proposes decoupling contextual memory from its traditional local state, suggesting memory should be independently callable, dynamically composable, and finely governed. By utilizing service-oriented architecture (SOA) concepts, each memory module within Maas can be addressed and invoked independently, freed from its local constraints of traditional agent systems.

Public and Private Memory Integration

The framework emphasizes the duality of memory — leveraging both its private and public service aspects. While memory retains its private nature, the public service dimension is facilitated through a permission-aware framework, promoting cross-entity collaboration without breaching privacy.

MaaS Design Architecture

Independent Addressability and Composability

Each memory module in MaaS is designed to be independently accessible via a standardized protocol, ensuring that authorized entities can invoke memory services as needed. This addressability transforms memory from a static local asset into a fluid, serviceable entity.

Governance through Intent Awareness

Effective governance within the MaaS framework mandates that authorization and access are dynamically and contextually governed. This relies on intent-aware policies that regulate memory access based on the requesting entity's context and purpose.

Public and Private Memory Tension

MaaS introduces an architecture that balances the inherent privacy of memory with its potential as a public service. This involves encapsulating private memory in "Memory Containers" with embedded access policies while facilitating public service interactions through a "Memory Routing Layer." This infrastructure ensures secure and efficient transfer and sharing of memory across entity boundaries.

Design Space and Applications

Intra-Entity

Within single-entity ecosystems, MaaS provides a structured architectural perspective for managing and sharing memory across multiple agents owned by an individual. Injective services are exemplified by systems like MCP, which allow memory modules to be accessed and shared beyond immediate session constraints within an individual's framework.

Inter-Entity

In multi-entity contexts, MaaS emphasizes the secure governance of cross-entity memory sharing. Injective and exchange-based services must manage permissions robustly to authorize and route memory appropriately. This supports scenarios like "legacy memories," where individuals can share experiences posthumously under controlled access.

Group-Level

For organizations, MaaS serves as an infrastructure for collective knowledge management. It facilitates injective services to distribute group-level memory, such as corporate protocols, maintaining a clear architectural separation between public norms and private experiences.

Research Agenda

Governance and Protocols

Developing dynamic, multidimensional permission systems is critical to support MaaS's interoperability. Furthermore, proposing open, standardized protocols for memory interaction akin to HTTP would be necessary to enable seamless cross-entity collaboration and interoperability.

Security and Trust

Securing memory as a private asset within an open service network involves preserving memory integrity and ensuring provenance. Addressing privacy-preserving collaboration will necessitate applying homomorphic encryption and secure multi-party computation technologies to support collaborative computations without compromising private data.

Ecosystem and Ethics

As high-quality memory becomes a tradable digital asset, economic models for a "memory market" must be researched. Furthermore, addressing ethical concerns, such as digital legacy rights and collective memory biases, will require multidisciplinary collaboration to establish legal and ethical standards.

Conclusion

The transition from a "bound memory" paradigm to "Memory as a Service" represents a significant evolution in collaborative agent design. The MaaS framework provides a conceptual model enabling modular, governable memory services, laying the groundwork for more open, efficient, and trustworthy collaborative environments. While still in its nascent stage, the potential of MaaS to redefine memory-sharing practices warrants continued exploration and development by the broader research community.

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