number,title,implementation_count 30,Service Discovery,38 280,Message Carbons,38 45,Multi-User Chat,37 363,HTTP File Upload,37 115,Entity Capabilities,36 199,XMPP Ping,36 313,Message Archive Management,35 4,Data Forms,33 198,Stream Management,33 184,Message Delivery Receipts,32 54,vcard-temp,31 85,Chat State Notifications,31 92,Software Version,30 163,Personal Eventing Protocol,29 48,Bookmarks,28 249,Direct MUC Invitations,28 77,In-Band Registration,27 60,Publish-Subscribe,26 153,vCard-Based Avatars,25 308,Last Message Correction,24 84,User Avatar,23 172,User Nickname,23 191,Blocking Command,23 203,Delayed Delivery,23 333,Chat Markers,23 352,Client State Indication,23 59,Result Set Management,22 384,OMEMO Encryption,22 359,Unique and Stable Stanza IDs,21 215,External Service Discovery,20 237,Roster Versioning,20 245,The /me Command,20 368,SRV records for XMPP over TLS,20 49,Private XML Storage,19 50,Ad-Hoc Commands,19 357,Push Notifications,19 223,Persistent Storage of Private Data via PubSub,18 398,User Avatar to vCard-Based Avatars Conversion,17 82,XMPP Date and Time Profiles,16 176,Jingle ICE-UDP Transport Method,16 66,Out of Band Data,15 319,Last User Interaction in Presence,15 353,Jingle Message Initiation,15 410,MUC Self-Ping (Schrödinger's Chat),15 454,OMEMO Media sharing,15 392,Consistent Color Generation,14 167,Jingle RTP Sessions,13 425,Message Moderation,13 12,Last Activity,12 91,Legacy Delayed Delivery,12 118,User Tune,12 166,Jingle,12 293,Jingle RTP Feedback Negotiation,12 294,Jingle RTP Header Extensions Negotiation,12 297,Stanza Forwarding,12 334,Message Processing Hints,12 393,Message Styling,12 424,Message Retraction,12 27,Current Jabber OpenPGP Usage,11 65,SOCKS5 Bytestreams,11 157,Contact Addresses for XMPP Services,11 202,Entity Time,11 320,Use of DTLS-SRTP in Jingle Sessions,11 380,Explicit Message Encryption,11 402,PEP Native Bookmarks,11 107,User Mood,10 175,Best Practices for Use of SASL ANONYMOUS,10 231,Bits of Binary,10 338,Jingle Grouping Framework,10 339,Source-Specific Media Attributes in Jingle,10 369,Mediated Information eXchange (MIX),10 47,In-Band Bytestreams,9 80,User Location,9 106,JID Escaping,9 108,User Activity,9 114,Jabber Component Protocol,9 124,Bidirectional-streams Over Synchronous HTTP (BOSH),9 206,XMPP Over BOSH,9 224,Attention,9 234,Jingle File Transfer,9 16,Privacy Lists,8 128,Service Discovery Extensions,8 160,Best Practices for Handling Offline Messages,8 178,Best Practices for Use of SASL EXTERNAL with Certificates,8 221,Data Forms Media Element,8 377,Spam Reporting,8 405,Mediated Information eXchange (MIX): Participant Server Requirements,8 411,Bookmarks Conversion,8 421,Anonymous unique occupant identifiers for MUCs,8 444,Message Reactions,8 55,Jabber Search,7 70,Verifying HTTP Requests via XMPP,7 83,Nested Roster Groups,7 133,Service Administration,7 261,Jingle In-Band Bytestreams Transport Method,7 33,Extended Stanza Addressing,6 71,XHTML-IM,6 78,Non-SASL Authentication,6 86,Error Condition Mappings,6 96,SI File Transfer,6 122,Data Forms Validation,6 138,Stream Compression,6 156,Discovering Alternative XMPP Connection Methods,6 170,Recommended Order of Stream Feature Negotiation,6 185,Dialback Key Generation and Validation,6 220,Server Dialback,6 260,Jingle SOCKS5 Bytestreams Transport Method,6 422,Message Fastening,6 428,Fallback Indication,6 13,Flexible Offline Message Retrieval,5 68,Field Standardization for Data Forms,5 205,Best Practices to Discourage Denial of Service Attacks,5 382,Spoiler messages,5 391,Jingle Encrypted Transports,5 396,Jingle Encrypted Transports - OMEMO,5 407,Mediated Information eXchange (MIX): Miscellaneous Capabilities,5 441,Message Archive Management Preferences,5 9,Jabber-RPC,4 79,Advanced Message Processing,4 95,Stream Initiation,4 100,Gateway Interaction,4 126,Invisibility,4 147,XMPP URI Scheme Query Components,4 158,CAPTCHA Forms,4 189,Public Key Publishing,4 196,User Gaming,4 212,XMPP Basic Server 2008,4 222,Persistent Storage of Public Data via PubSub,4 248,PubSub Collection Nodes,4 258,Security Labels in XMPP,4 277,Microblogging over XMPP,4 279,Server IP Check,4 286,Mobile Considerations on LTE Networks,4 292,vCard4 Over XMPP,4 300,Use of Cryptographic Hash Functions in XMPP,4 302,XMPP Compliance Suites 2012,4 372,References,4 379,Pre-Authenticated Roster Subscription,4 385,Stateless Inline Media Sharing (SIMS),4 406,Mediated Information eXchange (MIX): MIX Administration,4 39,Statistics Gathering,3 73,Basic IM Protocol Suite,3 90,Legacy Entity Time,3 131,Stanza Headers and Internet Metadata,3 136,Message Archiving,3 144,Roster Item Exchange,3 145,Annotations,3 148,Instant Messaging Intelligence Quotient (IM IQ),3 182,Application-Specific Error Conditions,3 209,Metacontacts,3 227,Portable Import/Export Format for XMPP-IM Servers,3 256,Last Activity in Presence,3 257,Client Certificate Management for SASL EXTERNAL,3 317,Hats,3 328,JID Preparation and Validation Service,3 373,OpenPGP for XMPP,3 401,Ad-hoc Account Invitation Generation,3 420,Stanza Content Encryption,3 423,XMPP Compliance Suites 2020,3 437,Room Activity Indicators,3 447,Stateless file sharing,3 461,Message Replies,3 22,Message Events,2 23,Message Expiration,2 142,Workgroup Queues,2 146,Remote Controlling Clients,2 177,Jingle Raw UDP Transport Method,2 190,Best Practice for Closing Idle Streams,2 194,User Chatting,2 195,User Browsing,2 197,User Viewing,2 225,Component Connections,2 233,XMPP Server Registration for use with Kerberos V5,2 253,PubSub Chaining,2 264,Jingle Content Thumbnails,2 270,XMPP Compliance Suites 2010,2 272,Multiparty Jingle (Muji),2 278,Jingle Relay Nodes,2 288,Bidirectional Server-to-Server Connections,2 307,Unique Room Names for Multi-User Chat,2 356,Privileged Entity,2 364,Current Off-the-Record Messaging Usage,2 367,Message Attaching,2 371,Jingle ICE Transport Method,2 375,XMPP Compliance Suites 2016,2 387,XMPP Compliance Suites 2018,2 388,Extensible SASL Profile,2 433,Extended Channel Search,2 434,Trust Messages (TM),2 440,SASL Channel-Binding Type Capability,2 445,Pre-Authenticated In-Band Registration,2 446,File metadata element,2 448,Encryption for stateless file sharing,2 450,Automatic Trust Management (ATM),2 11,Jabber Browsing,1 20,Feature Negotiation,1 44,Full Namespace Support for XML Streams,1 93,Roster Item Exchange,1 94,Agent Information,1 129,WebDAV File Transfers,1 152,Reachability Addresses,1 159,Spim-Blocking Control,1 162,Best Practices for Roster and Subscription Management,1 186,Invisible Command,1 200,Stanza Encryption,1 211,XMPP Basic Client 2008,1 213,XMPP Intermediate IM Client 2008,1 216,XMPP Intermediate IM Server 2008,1 235,OAuth Over XMPP,1 242,XMPP Client Compliance 2009,1 243,XMPP Server Compliance 2009,1 252,BOSH Script Syntax,1 263,ECO-XMPP,1 267,Server Buddies,1 268,Incident Handling,1 273,Stanza Interception and Filtering Technology (SIFT),1 284,Shared XML Editing,1 289,Federated MUC for Constrained Environments,1 296,Best Practices for Resource Locking,1 298,Delivering Conference Information to Jingle Participants (Coin),1 301,In-Band Real Time Text,1 305,XMPP Quickstart,1 306,Extensible Status Conditions for Multi-User Chat,1 309,Service Directories,1 318,Best Practices for Client Initiated Presence Probes,1 321,Remote Roster Management,1 323,Internet of Things - Sensor Data,1 325,Internet of Things - Control,1 330,Pubsub Subscription,1 332,HTTP over XMPP transport,1 335,JSON Containers,1 336,Data Forms - Dynamic Forms,1 340,COnferences with LIghtweight BRIdging (COLIBRI),1 343,Signaling WebRTC datachannels in Jingle,1 344,Impact of TLS and DNSSEC on Dialback,1 355,Namespace Delegation,1 374,OpenPGP for XMPP Instant Messaging,1 386,Bind 2,1 390,Entity Capabilities 2.0,1 394,Message Markup,1 403,Mediated Information eXchange (MIX): Presence Support.,1 404,Mediated Information eXchange (MIX): JID Hidden Channels.,1 426,Character counting in message bodies,1 432,Simple JSON Messaging,1 438,Best practices for password hashing and storage,1 439,Quick Response,1 453,DOAP usage in XMPP,1 469,Bookmark Pinning,1 472,Pubsub Social Feed,1 478,Stream Limits Advertisement,1 482,Call Invites,1 ,XMPP Transport Layer Security,0 ,Jingle In-Band Bytestreams Transport,0 ,Calendaring Extensions to Publish-Subscribe,0 ,Jingle SOCKS5 Bytestreams Transport Method,0 ,XMPP Transport Layer Security,0 ,Use of ZRTP in Jingle RTP Sessions,0 ,Mandatory-to-Implement Technologies for Jingle RTP Sessions,0 ,Server IP Check,0 ,File Transfer Thumbnails,0 ,Instant Gaming,0 ,Server-based Tic-tac-toe,0 ,Tic-tac-toe,0 ,Out-of-Band Stream Data,0 ,Codecs for Jingle RTP Sessions,0 ,Stanza Forwarding,0 ,Problem Reporting,0 ,Multi-User Gaming,0 ,Server Rosters,0 ,Incident Reporting,0 ,Shared BOSH,0 ,Muji,0 ,Domain Name Assertions,0 ,Stanza Interception and Filtering Technology,0 ,Design Considerations for Digital Signatures in XMPP,0 ,Linked Process Protocol,0 ,Jingle Relay Nodes,0 ,Entity Reputation,0 ,Presence Decloaking,0 ,Distributed Multi-User Chat,0 ,Message Carbons,0 ,Digital Signatures in XMPP,0 ,JSON Content Type support,0 ,Federated MUC for constrained environments,0 ,Shared XML Editing,0 ,Moved,0 ,XMPP on Mobile Devices,0 ,Spim Markers and Reports,0 ,Bidirectional Server-to-Server Connections,0 ,DMUC3: Distributed MUC,0 ,Sensor-Over-XMPP,0 ,Account Management,0 ,File Transfer Metadata,0 ,The 'xmpp.pubsub' URI Scheme,0 ,PubSub Since,0 ,Multi-User Chat Administration,0 ,Jingle SDP Content,0 ,User Time Zone,0 ,SIP/SDP Over XMPP (SoX),0 ,Two-factor user authentication with a shared secret,0 ,Buddycloud Channels,0 ,Recipient Server Side Notifications Filtering,0 ,Internet of Things - Events,0 ,Client State Indication,0 ,Customizable Message Routing,0 ,S2S Components,0 ,Namespace Versioning in urn:xmpp,0 ,REST with XMPP,0 ,OMEMO Encrypted Jingle File Transfer,0 ,Mediated Information eXchange (MIX),0 ,Multi-User Chat Light,0 ,Quality of Service,0 ,Notification Inbox,0 ,Content Types in Messages,0 ,JID Mention,0 ,Multi-stage IBR,0 ,Token-based reconnection,0 ,Instant Stream Resumption,0 ,User Rating,0 ,Extensible SASL Profile,0 ,Atomically Compare-And-Publish PubSub Items,0 ,Body Markup Hints,0 ,Instant Stream Resumption,0 ,User Avatar to vCard-Based Avatars Conversion,0 ,Multi-Factor Authentication with TOTP,0 ,Client Key Support,0 ,IM Routing-NG,0 ,XMPP Connections across HTTPS (HACX),0 ,Terms of Services,0 ,Best practices for GDPR compliant deployment of XMPP,0 ,MUC Self-Ping (Schrödinger's Chat),0 ,File Sharing Notifications,0 ,Bookmarks Conversion,0 ,Simple Buttons,0 ,XMPP Compliance Suites 2019,0 ,XMPP Compliance Suites 2020,0 ,Order-By,0 ,Cryptographic Hash Function Recommendations for XMPP,0 ,XMPP Over RELOAD (XOR),0 ,E2E Authentication in XMPP: CA Requirements,0 ,E2E Authentication in XMPP,0 ,E2E Authentication in XMPP: Certificate Issuance and Revocation,0 ,DNS Queries over XMPP (DoX),0 ,Automatic Trust Transfer (ATT),0 ,Improving Baseline Security in XMPP,0 ,Stanza Content Encryption,0 ,Anonymous unique occupant identifiers for MUCs,0 ,Message Reactions,0 ,Message Fastening,0 ,Authorization Tokens,0 ,MAM Fastening Collation,0 ,Special Interests Group End to End Encryption,0 ,Fallback Indication,0 ,Inbox,0 ,Full Text Search in MAM,0 ,Implicit XMPP WebSocket Endpoints,0 ,Simple JSON Messaging,0 ,Trust Messages,0 ,Reminders,0 ,Extended Channel Search,0 ,MUC presence versioning,0 ,Room Activity Indicators,0 ,Best practices for password hashing and storage,0 ,Quick Response,0 ,Channel Binding Pseudomechanisms,0 ,Bookmark Pinning,0 ,SASL Channel-Binding Type Capability,0 ,XMPP Compliance Suites 2021,0 ,Pre-Authenticated In-Band Registration,0 ,Stickers,0 ,File metadata element,0 ,Automatic Trust Management (ATM),0 ,Stateless file sharing,0 ,Encryption for stateless file sharing,0 ,Stanza Multiplexing,0 ,MUC Mention Notifications,0 ,OMEMO Media sharing,0 ,DOAP usage in XMPP,0 ,Service Outage Status,0 ,XMPP Compliance Suites 2022,0 ,Content Rating Labels,0 ,Moved 2.0,0 ,Pre-auth Registration Key Generation and Validation,0 ,Pubsub Caching Hints,0 ,Disco Feature Attachment,0 ,PubSub Namespaces,0 ,Message Replies,0 ,Call Invites,0 ,Compatibility Fallbacks,0 ,PubSub Type Filtering,0 ,MUC Affiliations Versioning,0 ,Pubsub Public Subscriptions,0 ,Ephemeral Messages,0 ,WebSocket S2S,0 ,XMPP over QUIC,0 ,Pubsub Attachments,0 ,Events,0 ,PubSub Social Feed,0 ,SASL SCRAM Downgrade Protection,0 ,OpenPGP for XMPP Pubsub,0 ,Fast Authentication Streamlining Tokens,0 ,Stream Limits Advertisement,0 ,Pubsub Signing,0 ,Pubsub Signing: OpenPGP Profile,0 ,Pubsub Targeted Encryption,0 ,SASL Upgrade Tasks,0 ,XMPP Compliance Suites 2023,0 ,MUC Avatars,0 ,Reporting Account Affiliations,0 1,XMPP Extension Protocols,0 2,Special Interest Groups (SIGs),0 3,Proxy Accept Socket Service (PASS),0 5,Jabber Interest Groups,0 6,Profiles,0 7,Conferencing SIG,0 8,IQ-Based Avatars,0 10,Whiteboarding SIG,0 14,Message Tone,0 15,Account Transfer,0 17,Naive Packet Framing Protocol,0 18,Invisible Presence,0 19,Streamlining the SIGs,0 21,Jabber Event Notification Service (ENS),0 24,Publish/Subscribe,0 25,Jabber HTTP Polling,0 26,Internationalization (I18N),0 28,No Such XEP,0 29,Definition of Jabber Identifiers (JIDs),0 31,A Framework For Securing Jabber Conversations,0 32,Jabber URI Scheme,0 34,SASL Integration,0 35,SSL/TLS Integration,0 36,Pub-Sub Subscriptions,0 37,DSPS - Data Stream Proxy Service,0 38,Icon Styles,0 40,Jabber Robust Publish-Subscribe,0 41,Reliable Entity Link,0 42,Jabber OOB Broadcast Service (JOBS),0 43,Jabber Database Access,0 46,DTCP,0 51,Connection Transfer,0 52,File Transfer,0 53,XMPP Registrar Function,0 56,Business Data Interchange,0 57,Extended Roster,0 58,Multi-User Text Editing,0 61,Shared Notes,0 62,Packet Filtering,0 63,Basic Filtering Operations,0 64,XPath Filtering,0 67,Stock Data Transmission,0 69,Compliance SIG,0 72,SOAP Over XMPP,0 74,Simple Access Control,0 75,Jabber Object Access Protocol (JOAP),0 76,Malicious Stanzas,0 81,Jabber MIME Type,0 87,Stream Initiation,0 88,Client Webtabs,0 89,Generic Alerts,0 97,iCal Envelope,0 98,Enhanced Private XML Storage,0 99,IQ Query Action Protocol,0 101,HTTP Authentication using Jabber Tickets,0 102,Security Extensions,0 103,URL Address Information,0 104,HTTP Scheme for URL Data,0 105,Tree Transfer Stream Initiation Profile,0 109,Out-of-Office Messages,0 110,Generic Maps,0 111,A Transport for Initiating and Negotiating Sessions (TINS),0 112,User Physical Location,0 113,Simple Whiteboarding,0 116,Encrypted Session Negotiation,0 117,Intermediate IM Protocol Suite,0 119,Extended Presence Protocol Suite,0 120,Infobits,0 121,Dublin Core Infobits Mapping,0 123,Entity Metadata,0 125,vCard Infobits Mapping,0 127,Common Alerting Protocol (CAP) Over XMPP,0 130,Waiting Lists,0 132,Presence Obtained via Kinesthetic Excitation (POKE),0 134,XMPP Design Guidelines,0 135,File Sharing,0 137,Publishing Stream Initiation Requests,0 139,Security SIG,0 140,Shared Groups,0 141,Data Forms Layout,0 143,Guidelines for Authors of XMPP Extension Protocols,0 149,Time Periods,0 150,Use of Entity Tags in XMPP Extensions,0 151,Virtual Presence,0 154,User Profile,0 155,Stanza Session Negotiation,0 161,Abuse Reporting,0 164,vCard Filtering,0 165,Best Practices to Discourage JID Mimicking,0 168,Resource Application Priority,0 169,Twas The Night Before Christmas (Jabber Version),0 171,Language Translation,0 173,Pubsub Subscription Storage,0 174,Serverless Messaging,0 179,Jingle IAX Transport Method,0 180,Jingle Video via RTP,0 181,Jingle DTMF,0 183,Jingle Telepathy Transport,0 187,Offline Encrypted Sessions,0 188,Cryptographic Design of Encrypted Sessions,0 192,Proposed Stream Feature Improvements,0 193,Proposed Resource Binding Improvements,0 201,Best Practices for Message Threads,0 204,Collaborative Data Objects,0 207,XMPP Eventing via Pubsub,0 208,Bootstrapping Implementation of Jingle,0 210,Requirements for Encrypted Sessions,0 214,File Repository and Sharing,0 217,Simplified Encrypted Session Negotiation,0 218,Bootstrapping Implementation of Encrypted Sessions,0 219,Hop Check,0 226,Message Stanza Profiles,0 228,Requirements for Shared Editing,0 229,Stream Compression with LZW,0 230,Service Discovery Notifications,0 232,Software Information,0 236,Abuse Reporting,0 238,XMPP Protocol Flows for Inter-Domain Federation,0 239,Binary XMPP,0 240,Auto-Discovery of JabberIDs,0 241,Encryption of Archived Messages,0 244,IO Data,0 246,End-to-End XML Streams,0 247,Jingle XML Streams,0 250,C2C Authentication Using TLS,0 251,Jingle Session Transfer,0 254,PubSub Queueing,0 255,Location Query,0 259,Message Mine-ing,0 262,Use of ZRTP in Jingle RTP Sessions,0 265,Out-of-Band Stream Data,0 266,Codecs for Jingle Audio,0 269,Jingle Early Media,0 271,XMPP Nodes,0 274,Design Considerations for Digital Signatures in XMPP,0 275,Entity Reputation,0 276,Presence Decloaking,0 281,DMUC1: Distributed Multi-User Chat,0 282,DMUC2: Distributed MUC,0 283,Moved,0 285,Encapsulating Digital Signatures in XMPP,0 287,Spim Markers and Reports,0 290,Encapsulated Digital Signatures in XMPP,0 291,Service Delegation,0 295,JSON Encodings for XMPP,0 299,Codecs for Jingle Video,0 303,Commenting,0 304,Whitespace Keepalive Negotiation,0 310,Presence State Annotations,0 311,MUC Fast Reconnect,0 312,PubSub Since,0 314,Security Labels in PubSub,0 315,Data Forms XML Element,0 316,MUC Eventing Protocol,0 322,Efficient XML Interchange (EXI) Format,0 324,Internet of Things - Provisioning,0 326,Internet of Things - Concentrators,0 327,Rayo,0 329,File Information Sharing,0 331,Data Forms - Color Field Types,0 337,Event Logging over XMPP,0 341,Rayo CPA,0 342,Rayo Fax,0 345,Form of Membership Applications,0 346,Form Discovery and Publishing,0 347,Internet of Things - Discovery,0 348,Signing Forms,0 349,Rayo Clustering,0 350,Data Forms Geolocation Element,0 351,Recipient Server Side Notifications Filtering,0 354,Customizable Message Routing,0 358,Publishing Available Jingle Sessions,0 360,Nonzas (are not Stanzas),0 361,Zero Handshake Server to Server Protocol,0 362,Raft over XMPP,0 365,Server to Server communication over STANAG 5066 ARQ,0 366,Entity Versioning,0 370,Jingle HTTP Transport Method,0 376,Pubsub Account Management,0 378,OTR Discovery,0 381,Internet of Things Special Interest Group (IoT SIG),0 383,Burner JIDs,0 389,Extensible In-Band Registration,0 395,Atomically Compare-And-Publish PubSub Items,0 397,Instant Stream Resumption,0 399,Client Key Support,0 400,Multi-Factor Authentication with TOTP,0 408,Mediated Information eXchange (MIX): Co-existence with MUC,0 409,IM Routing-NG,0 412,XMPP Compliance Suites 2019,0 413,Order-By,0 414,Cryptographic Hash Function Recommendations for XMPP,0 415,XMPP Over RELOAD (XOR),0 416,E2E Authentication in XMPP,0 417,E2E Authentication in XMPP: Certificate Issuance and Revocation,0 418,DNS Queries over XMPP (DoX),0 419,Improving Baseline Security in XMPP,0 427,MAM Fastening Collation,0 429,Special Interests Group End to End Encryption,0 430,Inbox,0 431,Full Text Search in MAM,0 435,Reminders,0 436,MUC presence versioning,0 442,Pubsub Message Archive Management,0 443,XMPP Compliance Suites 2021,0 449,Stickers,0 451,Stanza Multiplexing,0 452,MUC Mention Notifications,0 455,Service Outage Status,0 456,Content Rating Labels,0 457,Message Fancying,0 458,Community Code of Conduct,0 459,XMPP Compliance Suites 2022,0 460,Pubsub Caching Hints,0 462,PubSub Type Filtering,0 463,MUC Affiliations Versioning,0 464,Cookies,0 465,Pubsub Public Subscriptions,0 466,Ephemeral Messages,0 467,XMPP over QUIC,0 468,WebSocket S2S,0 470,Pubsub Attachments,0 471,Events,0 473,OpenPGP for XMPP Pubsub,0 474,SASL SCRAM Downgrade Protection,0 475,Pubsub Signing,0 476,Pubsub Signing: OpenPGP Profile,0 477,Pubsub Targeted Encryption,0 479,XMPP Compliance Suites 2023,0 480,SASL Upgrade Tasks,0 481,Content Types in Messages,0