Credential Holding

Adding digital credential holding to your mobile app means your users can receive, store, and present verifiable credentials (such as mobile driver's licenses, employee badges, or proof-of-age tokens) without leaving your application. This overview helps product and engineering teams understand the integration approach, key decisions, and available tooling. Start here, then follow the pages in order or jump to the topic you need.

Underlying platforms

MATTR offers two holding solutions: the MATTR Pi Holder SDKs for embedding credential capabilities into your own mobile app, and MATTR GO Hold, a ready-made wallet application you can deploy as-is or with your own branding.

Explore the overview

Work through these pages to plan your holding integration from simple to more complex concepts:

1. SDK or ready-made wallet?: the decision and a feature comparison.
2. Platform requirements: minimum versions and frameworks.
3. Core capabilities to integrate: claiming, proximity presentation, and remote presentation.
4. Integration architecture: components and data flow.
5. Trust and security considerations: trusted verifier and issuer management, holder authentication, and status lists.
6. Operational tooling: activity log and SDK logging.
7. Frequently asked questions: answers to common holding questions.