- XEP-0027: Current Jabber OpenPGP Usage
- XEP-0030: Service Discovery
- XEP-0045: Multi-User Chat
- XEP-0048: Bookmarks
- XEP-0084: User Avatar
- XEP-0085: Chat State Notifications
- XEP-0092: Software Version
- XEP-0115: Entity Capabilities
- XEP-0163: Personal Eventing Protocol (avatars and nicks)
- XEP-0166: Jingle (only used for file transfer)
- XEP-0172: User Nickname
- XEP-0184: Message Delivery Receipts (reply only)
- XEP-0191: Blocking command
- XEP-0198: Stream Management
- XEP-0199: XMPP Ping
- XEP-0234: Jingle File Transfer
- XEP-0237: Roster Versioning
- XEP-0245: The /me Command
- XEP-0249: Direct MUC Invitations (receiving only)
- XEP-0260: Jingle SOCKS5 Bytestreams Transport Method
- XEP-0261: Jingle In-Band Bytestreams Transport Method
- XEP-0280: Message Carbons
- XEP-0308: Last Message Correction
- XEP-0313: Message Archive Management
- XEP-0319: Last User Interaction in Presence
- XEP-0333: Chat Markers
- XEP-0352: Client State Indication
- XEP-0357: Push Notifications
- XEP-0363: HTTP File Upload
- XEP-0368: SRV records for XMPP over TLS
- XEP-0377: Spam Reporting
- XEP-0384: OMEMO Encryption
