account The "account" category is to be used by a server when responding to a disco request sent to the bare JID (user@host addresss) of an account hosted by the server. admin The user@host is an administrative account N/A anonymous The user@host is a "guest" account that allows anonymous login by any user N/A registered The user@host is a registered or provisioned account associated with a particular non-administrative user N/A auth The "auth" category consists of server components that provide authentication services within a server implementation. cert A server component that authenticates based on external certificates N/A generic A server authentication component other than one of the registered types N/A ldap A server component that authenticates against an LDAP database N/A ntlm A server component that authenticates against an NT domain N/A pam A server component that authenticates against a PAM system N/A radius A server component that authenticates against a Radius system N/A authz Services and nodes that provide authorization identities. ephemeral An authorization service that provides ephemeral identities. XEP-0383 automation The "automation" category consists of entities and nodes that provide automated or programmed interaction. command-list The node for a list of commands; valid only for the node "http://jabber.org/protocol/commands" XEP-0050 command-node A node for a specific command; the "node" attribute uniquely identifies the command XEP-0050 rpc An entity that supports Jabber-RPC. XEP-0009 soap An entity that supports the SOAP XMPP Binding. XEP-0072 translation An entity that provides automated translation services. XEP-0171 client The "client" category consists of different types of clients, mostly for instant messaging. bot An automated client that is not controlled by a human user N/A console Minimal non-GUI client used on dumb terminals or text-only screens N/A game A client running on a gaming console N/A handheld A client running on a PDA, RIM device, or other handheld N/A pc Standard full-GUI client used on desktops and laptops N/A phone A client running on a mobile phone or other telephony device N/A sms A client that is not actually using an instant messaging client; however, messages sent to this contact will be delivered as Short Message Service (SMS) messages N/A tablet A client running on a touchscreen device larger than a smartphone and without a physical keyboard permanently attached to it. N/A web A client operated from within a web browser N/A collaboration The "collaboration" category consists of services that enable multiple individuals to work together in real time. whiteboard Multi-user whiteboarding service N/A component The "component" category consists of services that are internal to server implementations and not normally exposed outside a server. archive A server component that archives traffic N/A c2s A server component that handles client connections N/A generic A server component other than one of the registered types N/A load A server component that handles load balancing N/A log A server component that logs server information N/A presence A server component that provides presence information N/A router A server component that handles core routing logic N/A s2s A server component that handles server connections N/A sm A server component that manages user sessions N/A stats A server component that provides server statistics N/A conference The "conference" category consists of online conference services such as multi-user chatroom services. irc Internet Relay Chat service N/A text Text conferencing service XEP-0045 directory The "directory" category consists of information retrieval services that enable users to search online directories or otherwise be informed about the existence of other XMPP entities. chatroom A directory of chatrooms N/A group A directory that provides shared roster groups XEP-0144 user A directory of end users (e.g., JUD) N/A waitinglist A directory of waiting list entries XEP-0130 gateway The "gateway" category consists of translators between Jabber/XMPP services and non-XMPP services. aim Gateway to AOL Instant Messenger N/A discord Gateway to the Discord IM service N/A facebook Gateway to the Facebook IM service N/A gadu-gadu Gateway to the Gadu-Gadu IM service N/A http-ws Gateway that provides HTTP Web Services access N/A icq Gateway to ICQ N/A irc Gateway to IRC N/A lcs Gateway to Microsoft Live Communications Server N/A mattermost Gateway to a mattermost instance IM service N/A mrim Gateway to the mail.ru IM service N/A msn Gateway to MSN Messenger N/A myspaceim Gateway to the MySpace IM service N/A ocs Gateway to Microsoft Office Communications Server N/A pstn Gateway to the Public Switched Telephone Network (PSTN) N/A qq Gateway to the QQ IM service N/A sametime Gateway to IBM Lotus Sametime N/A signal Gateway to Signal IM service N/A simple Gateway to SIP for Instant Messaging and Presence Leveraging Extensions (SIMPLE) N/A skype Gateway to the Skype service N/A sms Gateway to Short Message Service N/A smtp Gateway to the SMTP (email) network N/A steam Gateway to Steam IM service N/A telegram Gateway to the Telegram IM service N/A tlen Gateway to the Tlen IM service N/A xfire Gateway to the Xfire gaming and IM service N/A xmpp Gateway to another XMPP service (NOT via native server-to-server communication) N/A yahoo Gateway to Yahoo! Instant Messenger N/A headline The "headline" category consists of services that provide real-time news or information (often but not necessarily in a message of type "headline"). newmail Service that notifies a user of new email messages. N/A rss RSS notification service. N/A weather Service that provides weather alerts. N/A hierarchy The "hierarchy" category is used to describe nodes within a hierarchy of nodes; the "branch" and "leaf" types are exhaustive. branch A service discovery node that contains further nodes in the hierarchy. XEP-0030 leaf A service discovery node that does not contain further nodes in the hierarchy. XEP-0030 proxy The "proxy" category consists of servers or services that act as special-purpose proxies or intermediaries between two or more XMPP endpoints. bytestreams SOCKS5 bytestreams proxy service XEP-0065 pubsub Services and nodes that adhere to XEP-0060. collection A pubsub node of the "collection" type. XEP-0060 leaf A pubsub node of the "leaf" type. XEP-0060 pep A personal eventing service that supports the publish-subscribe subset defined in XEP-0163. XEP-0163 service A pubsub service that supports the functionality defined in XEP-0060. XEP-0060 server The "server" category consists of any Jabber/XMPP server. im Standard Jabber/XMPP server used for instant messaging and presence N/A store The "store" category consists of internal server components that provide data storage and retrieval services. berkeley A server component that stores data in a Berkeley database N/A file A server component that stores data on the file system N/A generic A server data storage component other than one of the registered types N/A ldap A server component that stores data in an LDAP database N/A mysql A server component that stores data in a MySQL database N/A oracle A server component that stores data in an Oracle database N/A postgres A server component that stores data in a PostgreSQL database N/A