Enables interoperability between clients and metaverse instance (M-Instances) and between M-Instances by specifying Operation Model, Functional Profiles, and Functional Requirements of Processes, Actions, Items, and Data Types. Outline | Summary
MPAI-MMM – Architecture (MMM-ARC)
MPAI-MMM – Technologies (MMM-TEC) (Under development)

What MPAI-MMM is about

The MPAI Metaverse Model (MPAI-MMM) is an MPAI project developing Technical Reports and Technical Specifications supporting Metaverse Interoperability. Before that, MPAI has produced the Functionalities and Functionality Profiles Technical Reports and the MPAI-MMM – Architecture Technical Specification.

Technical Specification: MPAI Metaverse Model (MPAI-MMM) – Architecture specifies Terms and Definitions; Operation Model; Functional Requirements of Processes, Actions, Items, and Data Types; and Functional Profiles enabling Interoperability of two or more metaverse instances (M-Instances) if they rely on the Operation Model, and use the same Profile Architecture, and either the same technologies, or independent technologies while accessing Conversion Services that losslessly transform Data of an M-InstanceA to Data of an M-InstanceB.

Material about MPAI-MMM

MPAI is indebted to the following individuals for the development of Technical Specification – MPAI Metaverse Model (MPAI-MMM) – Architecture: Simone Casale-Brunet, Gérard Chollet , Panos Kudumakis, Philip Merrill, and Paolo Ribeca.

The MPAI-MMM – Architecture Working Draft (html, pdf)  was published with a request for Community Comments. See also the video recordings (YT, WimTV) and the slides of the presentation made on 1st September. Read An overview of MPAI Metaverse Model (MPAI-MMM) – Architecture. Send the Comments to the MPAI Secretariat by 2023/09/28T23:59 UTC. MPAI will use the Comments received to develop the final draft planned to be published at the 36th General Assembly (29 September 2023).

Technologies for MPAI-MMM – Architecture have been requested with a deadline of 10 July as below:

Call for Technologies (closed) html,  pdf
Use Cases and Functional Requirements html, pdf
Framework Licence html, pdf
Template for responses html, docx
Online presentation powerpoint, video (YT – non-YT)

Here are links to the two Technical Reports:

MPAI is indebted to the following individuals for their contributions to the development of:

  1. Technical Report: MPAI Metaverse Model (MPAI-MMM) – Functionalities: Simone Casale-Brunet (EPFL), Gérard Chollet (Institut Mines Télécom), Jungha Hong (ETRI), Panos Kudumakis, Paolo Ribeca (James Hutton Ltd), and Jaime Yoon (HanCom).
  2. Technical Report – MPAI Metaverse Model (MPAI-MMM) – Functionality Profiles: Simone Casale-Brunet, Gérard Chollet (Institut Mines Télécom), Panos Kudumakis, and Paolo Ribeca (James Hutton Ltd).


Users of MPAI standards should bear in mind the Notices and Disclaimers concerning use of MPAI Standards.

Version 1 MPAI Multiverse Model – Functionality profiles MPAI Metaverse Model – Functionalities

Contact secretariat for more information. Go to the https://mmm.mpai.community page.