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Ad Profile Service

A service that queries data from the user’s PDA(s), anonymizes it, and transforms it an advertising profile database. Profile data is never shared/sold with any other entity. The data can be queried by advertisers to return the number of (non-identified) users within a defined target audience.


A website, web service, mobile, tablet, laptop or desktop app (or the smartwallet of another user) that communicates with the user’s smartwallet or PDA (or both).


An assertion made about a subject in a context.


A relationship between (a) a smartwallet or a PDA, and (b) an app, PDA or smartwallet. A connection’s state is stored by one or more contexts.


A software component that implements one aspect of a connection. It implements a connector interface (abstraction) at the core of a smartwallet or a PDA. It is associated with a single context. It may receive data from the app and store it in this context, and/or it may read data from the context and transmit it to the app.

Wallet SDK

A local app can become interoperable with the Mee data network using a wallet SDK. The SDK manages personal data that is either (i) generated by the local app or (ii) received over the Mee data network from a PDA or a smartwallet.

Wallet Service

A web app can become interoperable with the Mee data network using a wallet service. A wallet service is a multi-user, cloud-based web service. The wallet service manages personal data that is either (i) generated by the web app or (ii) received over the Mee data network from a PDA or smartwallet.


A resource that is hosted on servers that a cloud provider (e.g. AWS, etc.) manages.


A container of data that holds the state for one aspect of a connection. The container contains an entity that represents the user along with a set of claims about them. It may also contain entities representing other subjects along with their claims.

Digital Wallet

A digital wallet is a software program or web service that securely stores and conveniently organizes a person’s payment methods, boarding passes, event tickets in one place. Recently the definition has expanded to include digital credentials like driver’s licenses, passports, and certifications usually packaged as Verifiable Credentials that can be issued to the wallet by an issuer and presented from the wallet to a verifier.

A digital wallet is comprised of two components: an agent and a personal datastore. The state of a local wallet is held in the datastore and the agent is responsible for interacting with the outside world (e.g. issuers and relying parties). The agent is an active component that works on behalf the user and manages the contents of the datastore.


Local Wallet

A digital wallet that runs on the user’s local devices (e.g. smartphone, tablet, or laptop) either as a standalone app, a browser extension, or a combination of both.

The state of the local wallet may be replicated (i.e. copied and synchronized) across multiple wallet replicas. For example, a user could have an iOS wallet whose personal datastore state is replicated bidirectionally with their MacOS wallet app. This gives the user the convenience of being able to use any of their wallet apps in the confidence that each has the same state (e.g. the same set of connections, etc.).

Cloud Wallet

A digital wallet that runs in the cloud or is self-hosted. Its personal datastore is stored in the cloud.


A smartwallet is a kind of digital wallet that:

  • May include dynamic data sharing connections to relying parties wherein information can be updated over time. This information can flow periodically or continuously from an external party to the wallet, in the reverse direction, or in both directions.
  • Allows the user to license their information to a relying party’s app under the terms of a data sharing agreement, thereby allowing the user to retain significant control over their information stored by the relying party.
  • Supports smartwallet-to-smartwallet messaging with minimal reliance on intermediary cloud-based services.

Smartwallets may be local wallets (local smartwallets) or cloud wallets (cloud smartwallets). The Mee Foundation is developing local smartwallets.

Mee Browser Extension (MBX)

A browser extension that allows the Mee experience to be applied in limited ways to non-Mee-compatible websites. The browser extension, for example, could include functions such as password management, DoNotSell (see, 3rd party cookie deletion, and web scraping functions. The MBX could communicate with a local smartwallet (if present) or a personal data service.

Mee Directory Service

A central directory service that maps PDA user ids to the user’s “home” PDA. It does not perform authentication---this is the responsibility of the PDA.

Mee Human Information License

A data sharing agreement between the business providing the app (provider) and The Mee Foundation (or its delegate), acting on the smartwallet or PDA user’s behalf. This contract licenses the user’s information under specific terms. In the Mee HIL, the business or other kind of organization (i) must not collect, use, retain, or share the user’s information with any other party without consent, and (ii) must implement APIs that enable the user’s smartwallet or PDA to remotely control their data.


Mee-certified is an adjective applied to an app wherein the user’s information involved in a data sharing connection with this app is subject to the terms of a human information license agreement. To be Mee-certified an app may also have to adhere to a set of specific UI guidelines.


Mee-compatible is an adjective applied to an apps, PDAs and smartwallets on the Mee data network.

Mee Data Network (MDN)

Aa network of Mee-compatible apps, PDAs, smartwallets and Mee browser extensions that exchange personal data under the user’s control. A MDN has exactly one Mee Directory Service and may have one or more Ad Profile Services.


Personal Ad Profile

The interests and demographics of a Mee user as generated and managed by an ad profile service.

Personal Data Agent (PDA)

A web service that gives the user agency over their personal information. It authenticates the user and manages their personal information (e.g. interests, contact information, affiliations, preferences, friends, etc.) stored in multiple distributed personal datastores on the Mee data network. These personal datastores are embedded within local apps (that integrate a wallet SDK) and/or web apps (that integrate a wallet service) and/or smartwallets (that also integrate a wallet SDK at their core).

A PDA relays requests for access from app A to data held by app B, and if the user of app B grants the request, relays back the requested data. The Mee Foundation is implementing a PDA that it plans to host at



A communication protocol used between a PDA or smartwallet and an app.

Relying Party (RP)

A subject with which the user interacts using a PDA or a smartwallet. An RP may be another user (of a PDA or a smartwallet) or a provider.


For example, in a connection between the user’s smartwallet and a typical app, the relying party is the provider that offers the app. If the app is another user’s smartwallet, the relying party is this other user.


A singleton data container holding a single person entity that represents the selfness of the user.


A resource that is hosted on servers that an individual user manages for themself.


The sameness of a person or a thing at all times or in all circumstances. The condition of being a single individual. The fact that a person or thing is itself and not something else. Individuality, personality.


A thing about which claims are made.



A subject that represents an incorporated legal entity.


A subject that represents a natural person.


A corporation that provides an app for its users.

Target Audience Profile

A cohort of Mee users to which an advertiser would like to advertise.

Wallet SDK

The platform-independent core logic of a smartwallet or a local app that enables them to be compatible with the Mee data network.


A resource that is hosted on servers that a provider manages.


A distinct impression of a single person or thing presented to or perceived by others. A set of characteristics or a description that distinguishes one person or thing from other people or things.