diff --git a/api/src/main/java/net/kyori/adventure/audience/Audience.java b/api/src/main/java/net/kyori/adventure/audience/Audience.java
index 57dbbdf3b..7546fdbcd 100644
--- a/api/src/main/java/net/kyori/adventure/audience/Audience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/Audience.java
@@ -29,6 +29,8 @@
 import java.util.function.Predicate;
 import java.util.stream.Collector;
 import net.kyori.adventure.bossbar.BossBar;
+import net.kyori.adventure.chat.ChatType;
+import net.kyori.adventure.chat.SignedMessage;
 import net.kyori.adventure.identity.Identified;
 import net.kyori.adventure.identity.Identity;
 import net.kyori.adventure.inventory.Book;
@@ -39,6 +41,7 @@
 import net.kyori.adventure.text.ComponentLike;
 import net.kyori.adventure.title.Title;
 import net.kyori.adventure.title.TitlePart;
+import org.jetbrains.annotations.ApiStatus;
 import org.jetbrains.annotations.NotNull;
 
 /**
@@ -174,8 +177,9 @@ default void forEachAudience(final @NotNull Consumer<? super Audience> action) {
     action.accept(this);
   }
 
+  /* Start: system messages */
   /**
-   * Sends a chat message with a {@link Identity#nil() nil} identity to this {@link Audience}.
+   * Sends a system chat message to this {@link Audience}.
    *
    * @param message a message
    * @see Component
@@ -185,157 +189,260 @@ default void forEachAudience(final @NotNull Consumer<? super Audience> action) {
    */
   @ForwardingAudienceOverrideNotRequired
   default void sendMessage(final @NotNull ComponentLike message) {
-    this.sendMessage(Identity.nil(), message);
+    this.sendMessage(message.asComponent());
   }
 
   /**
-   * Sends a chat message from the given {@link Identified} to this {@link Audience}.
+   * Sends a system chat message to this {@link Audience}.
    *
-   * @param source the source of the message
    * @param message a message
    * @see Component
-   * @since 4.0.0
+   * @see #sendMessage(Identified, Component)
+   * @see #sendMessage(Identity, Component)
+   * @since 4.1.0
    */
-  @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message) {
-    this.sendMessage(source, message.asComponent());
+  @SuppressWarnings("deprecation")
+  default void sendMessage(final @NotNull Component message) {
+    this.sendMessage(message, MessageType.SYSTEM);
   }
 
   /**
-   * Sends a chat message from the entity represented by the given {@link Identity} (or the game using {@link Identity#nil()}) to this {@link Audience}.
+   * Sends a system chat message to this {@link Audience} ignoring the provided {@link MessageType}.
    *
-   * @param source the identity of the source of the message
    * @param message a message
+   * @param type the type
    * @see Component
-   * @since 4.0.0
+   * @see #sendMessage(Identified, ComponentLike, MessageType)
+   * @see #sendMessage(Identity, ComponentLike, MessageType)
+   * @since 4.1.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal, use {@link #sendMessage(ComponentLike)}
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message) {
-    this.sendMessage(source, message.asComponent());
+  default void sendMessage(final @NotNull ComponentLike message, final @NotNull MessageType type) {
+    this.sendMessage(message.asComponent(), type);
   }
 
   /**
-   * Sends a chat message with a {@link Identity#nil() nil} identity to this {@link Audience}.
+   * Sends a system chat message to this {@link Audience} ignoring the provided {@link MessageType}.
    *
    * @param message a message
+   * @param type the type
    * @see Component
-   * @see #sendMessage(Identified, Component)
-   * @see #sendMessage(Identity, Component)
+   * @see #sendMessage(Identified, Component, MessageType)
+   * @see #sendMessage(Identity, Component, MessageType)
    * @since 4.1.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal, use {@link #sendMessage(Component)} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Component message) {
-    this.sendMessage(Identity.nil(), message);
+  default void sendMessage(final @NotNull Component message, final @NotNull MessageType type) {
+    this.sendMessage(Identity.nil(), message, type);
   }
+  /* End: system messages */
 
+  /* Start: unsigned player messages */
   /**
-   * Sends a chat message from the given {@link Identified} to this {@link Audience}.
+   * Sends an unsigned player chat message from the given {@link Identified} to this {@link Audience} with the {@link ChatType#CHAT system} chat type.
    *
    * @param source the source of the message
    * @param message a message
    * @see Component
    * @since 4.0.0
+   * @deprecated since 4.12.0, the client errors on and can reject identified messages without {@link SignedMessage} data, this may be unsupported in the future, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identified source, final @NotNull Component message) {
-    this.sendMessage(source, message, MessageType.SYSTEM);
+  default void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message) {
+    this.sendMessage(source, message.asComponent());
   }
 
   /**
-   * Sends a chat message from the entity represented by the given {@link Identity} (or the game using {@link Identity#nil()}) to this {@link Audience}.
+   * Sends an unsigned player chat message from the entity represented by the given {@link Identity} to this {@link Audience} with the {@link ChatType#CHAT system} chat type.
    *
    * @param source the identity of the source of the message
    * @param message a message
    * @see Component
    * @since 4.0.0
+   * @deprecated since 4.12.0, the client errors on and can reject identified messages without {@link SignedMessage} data, this may be unsupported in the future, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identity source, final @NotNull Component message) {
-    this.sendMessage(source, message, MessageType.SYSTEM);
+  default void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message) {
+    this.sendMessage(source, message.asComponent());
   }
 
   /**
-   * Sends a chat message with a {@link Identity#nil() nil} identity to this {@link Audience}.
+   * Sends an unsigned player chat message from the given {@link Identified} to this {@link Audience} with the {@link ChatType#CHAT system} chat type.
    *
+   * @param source the source of the message
    * @param message a message
-   * @param type the type
    * @see Component
-   * @see #sendMessage(Identified, ComponentLike, MessageType)
-   * @see #sendMessage(Identity, ComponentLike, MessageType)
-   * @since 4.1.0
+   * @since 4.0.0
+   * @deprecated since 4.12.0, the client errors on receiving and can reject identified messages without {@link SignedMessage} data, this may be unsupported in the future, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull ComponentLike message, final @NotNull MessageType type) {
-    this.sendMessage(Identity.nil(), message, type);
+  default void sendMessage(final @NotNull Identified source, final @NotNull Component message) {
+    this.sendMessage(source, message, MessageType.CHAT);
   }
 
   /**
-   * Sends a chat message from the given {@link Identified} to this {@link Audience}.
+   * Sends an unsigned player chat message from the entity represented by the given {@link Identity} to this {@link Audience} with the {@link ChatType#CHAT system} chat type.
    *
-   * @param source the source of the message
+   * @param source the identity of the source of the message
    * @param message a message
-   * @param type the type
    * @see Component
    * @since 4.0.0
+   * @deprecated since 4.12.0, the client errors on receiving and can reject identified messages without {@link SignedMessage} data, this may be unsupported in the future, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
-    this.sendMessage(source, message.asComponent(), type);
+  default void sendMessage(final @NotNull Identity source, final @NotNull Component message) {
+    this.sendMessage(source, message, MessageType.CHAT);
   }
 
   /**
-   * Sends a chat message from the entity represented by the given {@link Identity} (or the game using {@link Identity#nil()}) to this {@link Audience}.
+   * Sends an unsigned player chat message from the given {@link Identified} to this {@link Audience} with the {@link ChatType} corresponding to the provided {@link MessageType}.
    *
-   * @param source the identity of the source of the message
+   * @param source the source of the message
    * @param message a message
    * @param type the type
    * @see Component
    * @since 4.0.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal and the client errors on receiving and can reject identified messages without {@link SignedMessage} data, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
+  default void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
     this.sendMessage(source, message.asComponent(), type);
   }
 
   /**
-   * Sends a chat message with a {@link Identity#nil() nil} identity to this {@link Audience}.
+   * Sends an unsigned player chat message from the entity represented by the given {@link Identity} to this {@link Audience}.
    *
+   * @param source the identity of the source of the message
    * @param message a message
    * @param type the type
    * @see Component
-   * @see #sendMessage(Identified, Component, MessageType)
-   * @see #sendMessage(Identity, Component, MessageType)
-   * @since 4.1.0
+   * @since 4.0.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal and the client errors on receiving and can reject identified messages without {@link SignedMessage} data, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   @ForwardingAudienceOverrideNotRequired
-  default void sendMessage(final @NotNull Component message, final @NotNull MessageType type) {
-    this.sendMessage(Identity.nil(), message, type);
+  default void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
+    this.sendMessage(source, message.asComponent(), type);
   }
 
   /**
-   * Sends a chat message.
+   * Sends an unsigned player chat message from the given {@link Identified} to this {@link Audience} with the {@link ChatType} corresponding to the provided {@link MessageType}.
    *
    * @param source the source of the message
    * @param message a message
    * @param type the type
    * @see Component
    * @since 4.0.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal and the client errors on receiving and can reject identified messages without {@link SignedMessage} data, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
     this.sendMessage(source.identity(), message, type);
   }
 
   /**
-   * Sends a chat message.
+   * Sends a player chat message from the entity represented by the given {@link Identity} to this {@link Audience} with the {@link ChatType} corresponding to the provided {@link MessageType}.
    *
    * @param source the identity of the source of the message
    * @param message a message
    * @param type the type
    * @see Component
    * @since 4.0.0
+   * @deprecated for removal since 4.12.0, {@link MessageType} is deprecated for removal and the client errors on receiving and can reject identified messages without {@link SignedMessage} data, use {@link #sendMessage(SignedMessage, ChatType.Bound)} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   default void sendMessage(final @NotNull Identity source, final @NotNull Component message, final @NotNull MessageType type) {
+    // implementation required
+  }
+  /* End: unsigned player messages */
+
+  /* Start: disguised player messages */
+  /**
+   * Sends a message to this {@link Audience} with the provided {@link ChatType.Bound bound chat type}.
+   *
+   * @param message the component content
+   * @param boundChatType the bound chat type
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @SuppressWarnings("deprecation")
+  default void sendMessage(final @NotNull Component message, final ChatType.@NotNull Bound boundChatType) {
+    this.sendMessage(message, MessageType.CHAT);
+  }
+
+  /**
+   * Sends a message to this {@link Audience} with the provided {@link ChatType.Bound bound chat type}.
+   *
+   * @param message the component content
+   * @param boundChatType the bound chat type
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @ForwardingAudienceOverrideNotRequired
+  default void sendMessage(final @NotNull ComponentLike message, final ChatType.@NotNull Bound boundChatType) {
+    this.sendMessage(message.asComponent(), boundChatType);
+  }
+  /* End: disguised player messages
+
+  /* Start: signed player messages */
+  /**
+   * Sends a signed player message to this {@link Audience} with the provided {@link ChatType.Bound bound chat type}.
+   *
+   * @param signedMessage the signed message data
+   * @param boundChatType the bound chat type
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @SuppressWarnings("deprecation")
+  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
+    final Component content = signedMessage.unsignedContent() != null ? signedMessage.unsignedContent() : Component.text(signedMessage.message());
+    if (signedMessage.isSystem()) {
+      this.sendMessage(content);
+    } else {
+      this.sendMessage(signedMessage.identity(), content, MessageType.CHAT);
+    }
+  }
+
+  /**
+   * Requests deletion of a message with the provided {@link SignedMessage}'s signature.
+   *
+   * @param signedMessage the message to delete
+   * @see SignedMessage#canDelete()
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @ForwardingAudienceOverrideNotRequired
+  default void deleteMessage(final @NotNull SignedMessage signedMessage) {
+    if (signedMessage.canDelete()) {
+      this.deleteMessage(Objects.requireNonNull(signedMessage.signature()));
+    }
+  }
+
+  /**
+   * Requests deletion of a message with the provided {@link SignedMessage.Signature}.
+   *
+   * @param signature the signature
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
   }
+  /* End: signed player messages */
 
   /**
    * Sends a message on the action bar.
diff --git a/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java b/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
index 719c11c22..921e8fa46 100644
--- a/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/EmptyAudience.java
@@ -27,10 +27,13 @@
 import java.util.function.Consumer;
 import java.util.function.Predicate;
 import java.util.function.Supplier;
+import net.kyori.adventure.chat.ChatType;
+import net.kyori.adventure.chat.SignedMessage;
 import net.kyori.adventure.identity.Identified;
 import net.kyori.adventure.identity.Identity;
 import net.kyori.adventure.inventory.Book;
 import net.kyori.adventure.pointer.Pointer;
+import net.kyori.adventure.text.Component;
 import net.kyori.adventure.text.ComponentLike;
 import org.jetbrains.annotations.Contract;
 import org.jetbrains.annotations.NotNull;
@@ -70,23 +73,29 @@ public void sendMessage(final @NotNull ComponentLike message) {
   }
 
   @Override
-  public void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message) {
+  public void sendMessage(final @NotNull Component message) {
   }
 
   @Override
-  public void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message) {
+  @Deprecated
+  public void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
   }
 
   @Override
-  public void sendMessage(final @NotNull ComponentLike message, final @NotNull MessageType type) {
+  @Deprecated
+  public void sendMessage(final @NotNull Identity source, final @NotNull Component message, final @NotNull MessageType type) {
   }
 
   @Override
-  public void sendMessage(final @NotNull Identified source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
+  public void sendMessage(final @NotNull Component message, final ChatType.@NotNull Bound boundChatType) {
   }
 
   @Override
-  public void sendMessage(final @NotNull Identity source, final @NotNull ComponentLike message, final @NotNull MessageType type) {
+  public void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
+  }
+
+  @Override
+  public void deleteMessage(final SignedMessage.@NotNull Signature signature) {
   }
 
   @Override
diff --git a/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java b/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
index 3bd50c7e1..a728ebc1d 100644
--- a/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
+++ b/api/src/main/java/net/kyori/adventure/audience/ForwardingAudience.java
@@ -31,6 +31,8 @@
 import java.util.function.Predicate;
 import java.util.function.Supplier;
 import net.kyori.adventure.bossbar.BossBar;
+import net.kyori.adventure.chat.ChatType;
+import net.kyori.adventure.chat.SignedMessage;
 import net.kyori.adventure.identity.Identified;
 import net.kyori.adventure.identity.Identity;
 import net.kyori.adventure.inventory.Book;
@@ -96,11 +98,33 @@ default void forEachAudience(final @NotNull Consumer<? super Audience> action) {
   }
 
   @Override
+  default void sendMessage(final @NotNull Component message) {
+    for (final Audience audience : this.audiences()) audience.sendMessage(message);
+  }
+
+  @Override
+  default void sendMessage(final @NotNull Component message, final ChatType.@NotNull Bound boundChatType) {
+    for (final Audience audience : this.audiences()) audience.sendMessage(message, boundChatType);
+  }
+
+  @Override
+  default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
+    for (final Audience audience : this.audiences()) audience.sendMessage(signedMessage, boundChatType);
+  }
+
+  @Override
+  default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
+    for (final Audience audience : this.audiences()) audience.deleteMessage(signature);
+  }
+
+  @Override
+  @Deprecated
   default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
     for (final Audience audience : this.audiences()) audience.sendMessage(source, message, type);
   }
 
   @Override
+  @Deprecated
   default void sendMessage(final @NotNull Identity source, final @NotNull Component message, final @NotNull MessageType type) {
     for (final Audience audience : this.audiences()) audience.sendMessage(source, message, type);
   }
@@ -237,11 +261,33 @@ default void forEachAudience(final @NotNull Consumer<? super Audience> action) {
     }
 
     @Override
+    default void sendMessage(final @NotNull Component message) {
+      this.audience().sendMessage(message);
+    }
+
+    @Override
+    default void sendMessage(final @NotNull Component message, final ChatType.@NotNull Bound boundChatType) {
+      this.audience().sendMessage(message, boundChatType);
+    }
+
+    @Override
+    default void sendMessage(final @NotNull SignedMessage signedMessage, final ChatType.@NotNull Bound boundChatType) {
+      this.audience().sendMessage(signedMessage, boundChatType);
+    }
+
+    @Override
+    default void deleteMessage(final SignedMessage.@NotNull Signature signature) {
+      this.audience().deleteMessage(signature);
+    }
+
+    @Override
+    @Deprecated
     default void sendMessage(final @NotNull Identified source, final @NotNull Component message, final @NotNull MessageType type) {
       this.audience().sendMessage(source, message, type);
     }
 
     @Override
+    @Deprecated
     default void sendMessage(final @NotNull Identity source, final @NotNull Component message, final @NotNull MessageType type) {
       this.audience().sendMessage(source, message, type);
     }
diff --git a/api/src/main/java/net/kyori/adventure/audience/MessageType.java b/api/src/main/java/net/kyori/adventure/audience/MessageType.java
index d55016621..6de8dec58 100644
--- a/api/src/main/java/net/kyori/adventure/audience/MessageType.java
+++ b/api/src/main/java/net/kyori/adventure/audience/MessageType.java
@@ -23,22 +23,34 @@
  */
 package net.kyori.adventure.audience;
 
+import net.kyori.adventure.chat.ChatType;
+import org.jetbrains.annotations.ApiStatus;
+
 /**
  * Message types.
  *
  * @since 4.0.0
+ * @deprecated for removal since 4.12.0, use separate methods on {@link Audience} for sending player or system messages
  */
+@ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+@Deprecated
 public enum MessageType {
   /**
    * Chat message type.
    *
    * @since 4.0.0
+   * @deprecated for removal since 4.12.0, use {@link ChatType#CHAT} instead
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   CHAT,
   /**
    * System message type.
    *
    * @since 4.0.0
+   * @deprecated for removal since 4.12.0
    */
+  @ApiStatus.ScheduledForRemoval(inVersion = "5.0.0")
+  @Deprecated
   SYSTEM;
 }
diff --git a/api/src/main/java/net/kyori/adventure/chat/ChatType.java b/api/src/main/java/net/kyori/adventure/chat/ChatType.java
new file mode 100644
index 000000000..8e5af1824
--- /dev/null
+++ b/api/src/main/java/net/kyori/adventure/chat/ChatType.java
@@ -0,0 +1,192 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.chat;
+
+import java.util.stream.Stream;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.key.Keyed;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.ComponentLike;
+import net.kyori.examination.Examinable;
+import net.kyori.examination.ExaminableProperty;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import static java.util.Objects.requireNonNull;
+
+/**
+ * A type of chat.
+ *
+ * @since 4.12.0
+ * @sinceMinecraft 1.19
+ */
+public interface ChatType extends Examinable, Keyed {
+  /**
+   * A chat message from a player.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType CHAT = new ChatTypeImpl(Key.key("chat"));
+
+  /**
+   * A message send as a result of using the {@code /say} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType SAY_COMMAND = new ChatTypeImpl(Key.key("say_command"));
+
+  /**
+   * A message received as a result of using the {@code /msg} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType MSG_COMMAND_INCOMING = new ChatTypeImpl(Key.key("msg_command_incoming"));
+
+  /**
+   * A message sent as a result of using the {@code /msg} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType MSG_COMMAND_OUTGOING = new ChatTypeImpl(Key.key("msg_command_outgoing"));
+
+  /**
+   * A message received as a result of using the {@code /teammsg} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType TEAM_MSG_COMMAND_INCOMING = new ChatTypeImpl(Key.key("team_msg_command_incoming"));
+
+  /**
+   * A message sent as a result of using the {@code /teammsg} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType TEAM_MSG_COMMAND_OUTGOING = new ChatTypeImpl(Key.key("team_msg_command_outgoing"));
+
+  /**
+   * A message sent as a result of using the {@code /me} command.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  ChatType EMOTE_COMMAND = new ChatTypeImpl(Key.key("emote_command"));
+
+  /**
+   * Creates a new chat type with a given key.
+   *
+   * @param key the key
+   * @return the chat type
+   * @since 4.12.0
+   */
+  static @NotNull ChatType chatType(final @NotNull Keyed key) {
+    return key instanceof ChatType ? (ChatType) key : new ChatTypeImpl(requireNonNull(key, "key").key());
+  }
+
+  /**
+   * Creates a bound chat type with a name {@link Component}.
+   *
+   * @param name the name component
+   * @return a new bound chat type
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(value = "_ -> new", pure = true)
+  default ChatType.@NotNull Bound bind(final @NotNull ComponentLike name) {
+    return this.bind(name, null);
+  }
+
+  /**
+   * Creates a bound chat type with a name and target {@link Component}.
+   *
+   * @param name the name component
+   * @param target the optional target component
+   * @return a new bound chat type
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(value = "_, _ -> new", pure = true)
+  default ChatType.@NotNull Bound bind(final @NotNull ComponentLike name, final @Nullable ComponentLike target) {
+    return new ChatTypeImpl.BoundImpl(this, requireNonNull(name.asComponent(), "name"), ComponentLike.unbox(target));
+  }
+
+  @Override
+  default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
+    return Stream.of(ExaminableProperty.of("key", this.key()));
+  }
+
+  /**
+   * A bound {@link ChatType}.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  interface Bound extends Examinable {
+
+    /**
+     * Gets the chat type.
+     *
+     * @return the chat type
+     * @since 4.12.0
+     * @sinceMinecraft 1.19
+     */
+    @Contract(pure = true)
+    @NotNull ChatType type();
+
+    /**
+     * Get the name component.
+     *
+     * @return the name component
+     * @since 4.12.0
+     * @sinceMinecraft 1.19
+     */
+    @Contract(pure = true)
+    @NotNull Component name();
+
+    /**
+     * Get the target component.
+     *
+     * @return the target component or null
+     * @since 4.12.0
+     * @sinceMinecraft 1.19
+     */
+    @Contract(pure = true)
+    @Nullable Component target();
+
+    @Override
+    default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
+      return Stream.of(
+        ExaminableProperty.of("type", this.type()),
+        ExaminableProperty.of("name", this.name()),
+        ExaminableProperty.of("target", this.target())
+      );
+    }
+  }
+}
diff --git a/api/src/main/java/net/kyori/adventure/chat/ChatTypeImpl.java b/api/src/main/java/net/kyori/adventure/chat/ChatTypeImpl.java
new file mode 100644
index 000000000..d2d46d98f
--- /dev/null
+++ b/api/src/main/java/net/kyori/adventure/chat/ChatTypeImpl.java
@@ -0,0 +1,80 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.chat;
+
+import net.kyori.adventure.internal.Internals;
+import net.kyori.adventure.key.Key;
+import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+final class ChatTypeImpl implements ChatType {
+  private final Key key;
+
+  ChatTypeImpl(final @NotNull Key key) {
+    this.key = key;
+  }
+
+  @Override
+  public @NotNull Key key() {
+    return this.key;
+  }
+
+  @Override
+  public String toString() {
+    return Internals.toString(this);
+  }
+
+  static final class BoundImpl implements ChatType.Bound {
+    private final ChatType chatType;
+    private final Component name;
+    private final @Nullable Component target;
+
+    BoundImpl(final ChatType chatType, final Component name, final @Nullable Component target) {
+      this.chatType = chatType;
+      this.name = name;
+      this.target = target;
+    }
+
+    @Override
+    public @NotNull ChatType type() {
+      return this.chatType;
+    }
+
+    @Override
+    public @NotNull Component name() {
+      return this.name;
+    }
+
+    @Override
+    public @Nullable Component target() {
+      return this.target;
+    }
+
+    @Override
+    public String toString() {
+      return Internals.toString(this);
+    }
+  }
+}
diff --git a/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java b/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java
new file mode 100644
index 000000000..3b1e216d0
--- /dev/null
+++ b/api/src/main/java/net/kyori/adventure/chat/SignedMessage.java
@@ -0,0 +1,184 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.chat;
+
+import java.time.Instant;
+import java.util.stream.Stream;
+import net.kyori.adventure.identity.Identified;
+import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.ComponentLike;
+import net.kyori.examination.Examinable;
+import net.kyori.examination.ExaminableProperty;
+import org.jetbrains.annotations.ApiStatus;
+import org.jetbrains.annotations.Contract;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * A signed chat message.
+ *
+ * @since 4.12.0
+ * @sinceMinecraft 1.19
+ */
+@ApiStatus.NonExtendable
+public interface SignedMessage extends Identified, Examinable {
+
+  /**
+   * Creates a signature wrapper.
+   *
+   * @param signature the signature
+   * @return a new signature
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(value = "_ -> new", pure = true)
+  static @NotNull Signature signature(final byte[] signature) {
+    return new SignedMessageImpl.SignatureImpl(signature);
+  }
+
+  /**
+   * Creates a system {@link SignedMessage}.
+   *
+   * @param message the message
+   * @param unsignedContent the optional unsigned component content
+   * @return a new system {@link SignedMessage}
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(value = "_, _ -> new", pure = true)
+  static @NotNull SignedMessage system(final @NotNull String message, final @Nullable ComponentLike unsignedContent) {
+    return new SignedMessageImpl(message, ComponentLike.unbox(unsignedContent));
+  }
+
+  /**
+   * The time that the message was sent.
+   *
+   * @return the timestamp
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  @NotNull Instant timestamp();
+
+  /**
+   * The salt.
+   *
+   * @return the salt
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  long salt();
+
+  /**
+   * The signature of the message.
+   *
+   * @return the signature
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  @Nullable Signature signature();
+
+  /**
+   * The unsigned component content.
+   *
+   * @return the component or null
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  @Nullable Component unsignedContent();
+
+  /**
+   * The plain string message.
+   *
+   * @return the plain string message
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  @NotNull String message();
+
+  /**
+   * Checks if this message is a system message.
+   *
+   * @return true if system
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  default boolean isSystem() {
+    return this.identity() == Identity.nil();
+  }
+
+  /**
+   * Checks if this message can be deleted via {@link net.kyori.adventure.audience.Audience#deleteMessage(SignedMessage)}.
+   *
+   * @return true if supports deletion
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @Contract(pure = true)
+  default boolean canDelete() {
+    return this.signature() != null;
+  }
+
+  @Override
+  default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
+    return Stream.of(
+      ExaminableProperty.of("timestamp", this.timestamp()),
+      ExaminableProperty.of("salt", this.salt()),
+      ExaminableProperty.of("signature", this.signature()),
+      ExaminableProperty.of("unsignedContent", this.unsignedContent()),
+      ExaminableProperty.of("message", this.message())
+    );
+  }
+
+  /**
+   * A signature wrapper type.
+   *
+   * @since 4.12.0
+   * @sinceMinecraft 1.19
+   */
+  @ApiStatus.NonExtendable
+  interface Signature extends Examinable {
+
+    /**
+     * Gets the bytes for this signature.
+     *
+     * @return the bytes
+     * @since 4.12.0
+     * @sinceMinecraft 1.19
+     */
+    @Contract(pure = true)
+    byte[] bytes();
+
+    @Override
+    default @NotNull Stream<? extends ExaminableProperty> examinableProperties() {
+      return Stream.of(ExaminableProperty.of("bytes", this.bytes()));
+    }
+  }
+}
diff --git a/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java b/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java
new file mode 100644
index 000000000..0e75f0edb
--- /dev/null
+++ b/api/src/main/java/net/kyori/adventure/chat/SignedMessageImpl.java
@@ -0,0 +1,92 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+package net.kyori.adventure.chat;
+
+import java.security.SecureRandom;
+import java.time.Instant;
+import net.kyori.adventure.identity.Identity;
+import net.kyori.adventure.text.Component;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+// Used for system messages ONLY
+final class SignedMessageImpl implements SignedMessage {
+  static final SecureRandom RANDOM = new SecureRandom();
+
+  private final Instant instant;
+  private final long salt;
+  private final String message;
+  private final Component unsignedContent;
+
+  SignedMessageImpl(final String message, final Component unsignedContent) {
+    this.instant = Instant.now();
+    this.salt = RANDOM.nextLong();
+    this.message = message;
+    this.unsignedContent = unsignedContent;
+  }
+
+  @Override
+  public @NotNull Instant timestamp() {
+    return this.instant;
+  }
+
+  @Override
+  public long salt() {
+    return this.salt;
+  }
+
+  @Override
+  public Signature signature() {
+    return null;
+  }
+
+  @Override
+  public @Nullable Component unsignedContent() {
+    return this.unsignedContent;
+  }
+
+  @Override
+  public @NotNull String message() {
+    return this.message;
+  }
+
+  @Override
+  public @NotNull Identity identity() {
+    return Identity.nil();
+  }
+
+  static final class SignatureImpl implements Signature {
+
+    final byte[] signature;
+
+    SignatureImpl(final byte[] signature) {
+      this.signature = signature;
+    }
+
+    @Override
+    public byte[] bytes() {
+      return this.signature;
+    }
+  }
+}
diff --git a/api/src/main/java/net/kyori/adventure/chat/package-info.java b/api/src/main/java/net/kyori/adventure/chat/package-info.java
new file mode 100644
index 000000000..af45343ca
--- /dev/null
+++ b/api/src/main/java/net/kyori/adventure/chat/package-info.java
@@ -0,0 +1,27 @@
+/*
+ * This file is part of adventure, licensed under the MIT License.
+ *
+ * Copyright (c) 2017-2022 KyoriPowered
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/**
+ * Chat-related data.
+ */
+package net.kyori.adventure.chat;