diff --git a/Backend/Remora.Discord.API.Abstractions/API/Rest/IDiscordRestEmojiAPI.cs b/Backend/Remora.Discord.API.Abstractions/API/Rest/IDiscordRestEmojiAPI.cs
index ba2698960d..04635f5e9d 100644
--- a/Backend/Remora.Discord.API.Abstractions/API/Rest/IDiscordRestEmojiAPI.cs
+++ b/Backend/Remora.Discord.API.Abstractions/API/Rest/IDiscordRestEmojiAPI.cs
@@ -37,6 +37,88 @@ namespace Remora.Discord.API.Abstractions.Rest;
 [PublicAPI]
 public interface IDiscordRestEmojiAPI
 {
+    /// <summary>
+    /// Gets a list of emojis for the given application.
+    /// </summary>
+    /// <param name="applicationID">The ID of the application.</param>
+    /// <param name="ct">The cancellation token for this operation.</param>
+    /// <returns>A retrieval result which may or may not have succeeded.</returns>
+    Task<Result<IReadOnlyList<IEmoji>>> ListApplicationEmojisAync
+    (
+        Snowflake applicationID,
+        CancellationToken ct = default
+    );
+
+    /// <summary>
+    /// Gets the emoji on the given application with the given ID.
+    /// </summary>
+    /// <param name="applicationID">The ID of the application.</param>
+    /// <param name="emojiID">The ID of the emoji.</param>
+    /// <param name="ct">The cancellation token for this operation.</param>
+    /// <returns>A retrieval result which may or may not have succeeded.</returns>
+    Task<Result<IEmoji>> GetApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        Snowflake emojiID,
+        CancellationToken ct = default
+    );
+    
+    /// <summary>
+    /// Creates a new emoji for the given application with the given parameters.
+    /// </summary>
+    /// <remarks>
+    /// Any streams passed to this method will be disposed of at the end of the call. If you want to reuse the streams
+    /// afterwards, ensure that what you pass is a copy that the method can take ownership of.
+    /// </remarks>
+    /// <param name="applicationID">The ID of the application.</param>
+    /// <param name="name">The name of the new emoji.</param>
+    /// <param name="image">The image data.</param>
+    /// <param name="reason">The reason to mark the action in the audit log with.</param>
+    /// <param name="ct">The cancellation token for this operation.</param>
+    /// <returns>A creation result which may or may not have succeeded.</returns>
+    Task<Result<IEmoji>> CreateApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        string name,
+        Stream image,
+        Optional<string> reason = default,
+        CancellationToken ct = default
+    );
+
+    /// <summary>
+    /// Modifies the given emoji.
+    /// </summary>
+    /// <param name="applicationID">The ID of the application.</param>
+    /// <param name="emojiID">The ID of the emoji.</param>
+    /// <param name="name">The new name of the emoji.</param>
+    /// <param name="reason">The reason to mark the action in the audit log with.</param>
+    /// <param name="ct">The cancellation token for this operation.</param>
+    /// <returns>A modification result which may or may not have succeeded.</returns>
+    Task<Result<IEmoji>> ModifyApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        Snowflake emojiID,
+        Optional<string> name = default,
+        Optional<string> reason = default,
+        CancellationToken ct = default
+    );
+
+    /// <summary>
+    /// Deletes the given emoji.
+    /// </summary>
+    /// <param name="applicationID">The ID of the application.</param>
+    /// <param name="emojiID">The ID of the emoji.</param>
+    /// <param name="reason">The reason to mark the action in the audit log with.</param>
+    /// <param name="ct">The cancellation token for this operation.</param>
+    /// <returns>A deletion result which may or may not have succeeded.</returns>
+    Task<Result> DeleteApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        Snowflake emojiID,
+        Optional<string> reason = default,
+        CancellationToken ct = default
+    );
+
     /// <summary>
     /// Gets a list of emojis for the given guild.
     /// </summary>
@@ -56,8 +138,7 @@ Task<Result<IReadOnlyList<IEmoji>>> ListGuildEmojisAsync
     /// <param name="emojiID">The ID of the emoji.</param>
     /// <param name="ct">The cancellation token for this operation.</param>
     /// <returns>A retrieval result which may or may not have succeeded.</returns>
-    Task<Result<IEmoji>> GetGuildEmojiAsync
-    (
+    Task<Result<IEmoji>> GetGuildEmojiAsync(
         Snowflake guildID,
         Snowflake emojiID,
         CancellationToken ct = default
diff --git a/Backend/Remora.Discord.Rest/API/Emoji/DiscordRestEmojiAPI.cs b/Backend/Remora.Discord.Rest/API/Emoji/DiscordRestEmojiAPI.cs
index 5afc2a4873..424b1abd46 100644
--- a/Backend/Remora.Discord.Rest/API/Emoji/DiscordRestEmojiAPI.cs
+++ b/Backend/Remora.Discord.Rest/API/Emoji/DiscordRestEmojiAPI.cs
@@ -58,6 +58,115 @@ ICacheProvider rateLimitCache
     {
     }
 
+    /// <inheritdoc />
+    public Task<Result<IReadOnlyList<IEmoji>>> ListApplicationEmojisAync
+    (
+        Snowflake applicationID,
+        CancellationToken ct = default
+    )
+    {
+        return this.RestHttpClient.GetAsync<IReadOnlyList<IEmoji>>
+        (
+            $"applications/{applicationID}/emojis",
+            "items",
+            b => b.WithRateLimitContext(this.RateLimitCache),
+            ct: ct
+        );
+    }
+
+    /// <inheritdoc />
+    public virtual Task<Result<IEmoji>> GetApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        Snowflake emojiID,
+        CancellationToken ct = default
+    )
+    {
+        return this.RestHttpClient.GetAsync<IEmoji>
+        (
+            $"applications/{applicationID}/emojis/{emojiID}",
+            b => b.WithRateLimitContext(this.RateLimitCache),
+            ct: ct
+        );
+    }
+    
+    /// <inheritdoc />
+    public virtual async Task<Result<IEmoji>> CreateApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        string name,
+        Stream image,
+        Optional<string> reason = default,
+        CancellationToken ct = default
+    )
+    {
+        if (image.Length > 256000)
+        {
+            return new NotSupportedError("Image too large (max 256k).");
+        }
+
+        var packImage = await ImagePacker.PackImageAsync(image, ct);
+        if (!packImage.IsSuccess)
+        {
+            return Result<IEmoji>.FromError(packImage);
+        }
+
+        var emojiData = packImage.Entity;
+
+        return await this.RestHttpClient.PostAsync<IEmoji>
+        (
+            $"applications/{applicationID}/emojis",
+            b => b
+                .AddAuditLogReason(reason)
+                .WithJson
+                (
+                    json =>
+                    {
+                        json.WriteString("name", name);
+                        json.WriteString("image", emojiData);
+                    }
+                )
+                .WithRateLimitContext(this.RateLimitCache),
+            ct: ct
+        );
+    }
+
+    /// <inheritdoc />
+    public virtual Task<Result<IEmoji>> ModifyApplicationEmojiAsync
+    (
+        Snowflake applicationID,
+        Snowflake emojiID,
+        Optional<string> name = default,
+        Optional<string> reason = default,
+        CancellationToken ct = default
+    )
+    {
+        return this.RestHttpClient.PatchAsync<IEmoji>
+        (
+            $"applications/{applicationID}/emojis/{emojiID}",
+            b => b
+                .AddAuditLogReason(reason)
+                .WithJson(
+                    json =>
+                    {
+                        json.Write("name", name, this.JsonOptions);
+                    }
+                ).WithRateLimitContext(this.RateLimitCache),
+            ct: ct
+        );
+    }
+
+    /// <inheritdoc />
+    public virtual Task<Result> DeleteApplicationEmojiAsync(Snowflake applicationID, Snowflake emojiID, Optional<string> reason = default, CancellationToken ct = default)
+    {
+        return this.RestHttpClient.DeleteAsync
+        (
+            $"applications/{applicationID}/emojis/{emojiID}",
+            b => b.AddAuditLogReason(reason).WithRateLimitContext(this.RateLimitCache),
+            ct: ct
+        );
+    }
+
     /// <inheritdoc />
     public virtual Task<Result<IReadOnlyList<IEmoji>>> ListGuildEmojisAsync
     (