Metaverse Metadata Directory

The Metaverse Standards Challenge

Today's metaverse ecosystem relies on numerous excellent standards working in different domains:

glTF handles 3D model representation
USD enables complex scene composition
VRM specializes in humanoid avatars
FBX supports animation and rigging
COLLADA facilitates asset exchange
X3D enables web-based 3D graphics
OpenXR standardizes VR/AR experiences
CityJSON provides urban environment modeling
3D Tiles manages large-scale geospatial data
C2PA handles content authentication

glTF USD VRM FBX COLLADA X3D OpenXR CityJSON 3D Tiles C2PA

Each standard addresses different aspects of the metaverse

These standards excel in their domains but achieving interoperability between them requires additional integration work.

The MVMD Approach

MVMD establishes formal integration pathways between established metadata standards through a structured architecture.

Metaverse Asset Standards

glTF • USD • VRM • FBX • COLLADA • X3D • OpenXR • CityJSON • 3D Tiles • C2PA

A comprehensive collection of established standards that excel in different domains: glTF for efficient 3D models, USD for complex scene composition, VRM for humanoid avatars, FBX for animation and rigging, COLLADA for asset exchange, X3D for web-based 3D graphics, OpenXR for VR/AR experiences, CityJSON for urban environments, 3D Tiles for large-scale geospatial data, and C2PA for content authentication.

Schema.org & JSON-LD Foundation

MVMD builds on Schema.org and JSON-LD as its foundation, providing flexible structure, namespace support, and broad compatibility. This layer extends Schema.org with metaverse-specific properties, while maintaining search engine compatibility.

MVMD Integration Profiles

Ready-to-use templates for common asset types

Standardized metadata templates that combine multiple standards for specific use cases. Examples include Composable 3D NFTs, Digital Twins, Vehicles, and Identity profiles. Each profile provides clear implementation patterns, validation rules, and best practices.

Digital Assets Implementation

Practical implementation patterns for complex digital assets. This layer handles component relationships, asset hierarchies, content embedding, and resource management. It provides clear guidance for combining multiple standards while maintaining proper validation.

Interoperable Ecosystem

The framework that enables seamless asset integration across platforms. It handles namespace management, standard relationships, validation across specifications, and maintains compatibility with search engines and discovery tools.

Metaverse Platforms & Marketplaces

The diverse ecosystem where MVMD-enabled assets are created, traded, and experienced. Platforms benefit from increased interoperability, better asset discovery, simplified onboarding, and support for complex multi-component assets.

1
Metaverse Asset Standards
Leveraging established standards like glTF, USD, VRM, and C2PA which provide specialized capabilities for different aspects of metaverse assets.
2
Schema.org & JSON-LD
Using Schema.org vocabulary with JSON-LD to create a standardized metadata foundation.
3
MVMD Integration Profiles
Specific profiles that define precise integration patterns for various metaverse use cases.
4
Digital Assets Implementation
Enabling NFTs, digital assets, and data with consistent metadata handling.
5
Interoperable Ecosystem
Creating a seamless experience across metaverse platforms, digital asset stores, and Web3 explorers.

Who Benefits from MVMD

Content Creators

Implement multiple standards without conflicts, follow ready-to-use integration patterns, validate implementations with clear tools, and future-proof your development.

Content Creators →

Developers

Enable cross-platform asset compatibility, improve discovery and filtering, support rich metadata across your platform, and reduce creator onboarding friction.

Developers →

Standards Organizations

Increase adoption for your standard, improve implementation quality, collaborate on integration patterns, and gain real-world feedback.

Standards Organizations →

How MVMD Works

🧩

Standards Selection

Identify the relevant standards for a specific use case

📋

Integration Profile

Define exactly how standards work together

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Implementation & Validation

Build interoperable solutions with validation support

Learn More About the Process

Featured Integration Profiles

Composable 3D NFT

Defines metadata for complex 3D NFTs with component parts that can be recombined and used across platforms. Combines Schema.org, glTF, and C2PA standards.

View Profile →

Avatar

Standardizes metadata for digital avatars and characters, enabling consistent representation and animation across metaverse platforms.

View Profile →

View All Integration Profiles

Start Your Journey

I'm new to metadata:

Quickstart Guide →

I need implementation patterns:

Integration Profiles →

I want technical details:

Implementation Guide →

I need to validate:

Try the Validator →

Join the Community

MVMD is a collaborative effort supported by industry partners committed to metaverse interoperability.

Learn how to contribute Become a supporting organization

Supporting Organizations: