diff --git a/README.md b/README.md
index 9f8a666..8b714cd 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,7 @@ Options:
                                  ("vs", "coop")
     --with-summary               Include summary in the output
     --help                       Show this help message and exit
+    --nxapi-presence             Extends monitoring mode to use Nintendo Switch presence from nxapi
 ```
 
 3. If it's your first time running this, follow the instructions to login to
diff --git a/s3si.ts b/s3si.ts
index 8b941ad..7a68412 100644
--- a/s3si.ts
+++ b/s3si.ts
@@ -4,7 +4,13 @@ import { flags } from "./deps.ts";
 
 const parseArgs = (args: string[]) => {
   const parsed = flags.parse(args, {
-    string: ["profilePath", "exporter", "skipMode", "listMethod"],
+    string: [
+      "profilePath",
+      "exporter",
+      "skipMode",
+      "listMethod",
+      "nxapiPresenceUrl",
+    ],
     boolean: ["help", "noProgress", "monitor", "withSummary"],
     alias: {
       "help": "h",
@@ -15,6 +21,7 @@ const parseArgs = (args: string[]) => {
       "skipMode": ["s", "skip-mode"],
       "withSummary": "with-summary",
       "listMethod": "list-method",
+      "nxapiPresenceUrl": ["nxapi-presence"],
     },
   });
   return parsed;
@@ -39,7 +46,8 @@ Options:
     --skip-mode <mode>, -s       Skip mode (default: null)
                                  ("vs", "coop")
     --with-summary               Include summary in the output
-    --help                       Show this help message and exit`,
+    --help                       Show this help message and exit
+    --nxapi-presence             Extends monitoring mode to use Nintendo Switch presence from nxapi`,
   );
   Deno.exit(0);
 }
diff --git a/src/app.ts b/src/app.ts
index 4e709be..70e49cb 100644
--- a/src/app.ts
+++ b/src/app.ts
@@ -10,6 +10,7 @@ import { delay, showError } from "./utils.ts";
 import { GameFetcher } from "./GameFetcher.ts";
 import { DEFAULT_ENV, Env } from "./env.ts";
 import { SplashcatExporter } from "./exporters/splashcat.ts";
+import { SPLATOON3_TITLE_ID } from "./constant.ts";
 
 export type Opts = {
   profilePath: string;
@@ -22,6 +23,7 @@ export type Opts = {
   cache?: Cache;
   stateBackend?: StateBackend;
   env: Env;
+  nxapiPresenceUrl?: string;
 };
 
 export const DEFAULT_OPTS: Opts = {
@@ -163,6 +165,7 @@ function progress({ total, currentUrl, done }: StepProgress): Progress {
 export class App {
   profile: Profile;
   env: Env;
+  splatoon3PreviouslyActive = false;
 
   constructor(public opts: Opts) {
     const stateBackend = opts.stateBackend ??
@@ -419,6 +422,30 @@ export class App {
       }
     }
   }
+  async monitorWithNxapi() {
+    this.env.logger.debug("Monitoring with nxapi presence");
+    await this.exportOnce();
+
+    while (true) {
+      await this.countDown(this.profile.state.monitorInterval);
+      const nxapiResponse = await fetch(this.opts.nxapiPresenceUrl!);
+      const nxapiData = await nxapiResponse.json();
+      const isSplatoon3Active = nxapiData.title?.id === SPLATOON3_TITLE_ID;
+      if (isSplatoon3Active || this.splatoon3PreviouslyActive) {
+        this.env.logger.log("Splatoon 3 is active, exporting data");
+        await this.exportOnce();
+      }
+      if (isSplatoon3Active !== this.splatoon3PreviouslyActive) {
+        this.env.logger.debug(
+          "Splatoon 3 status has changed from",
+          this.splatoon3PreviouslyActive,
+          "to",
+          isSplatoon3Active,
+        );
+      }
+      this.splatoon3PreviouslyActive = isSplatoon3Active;
+    }
+  }
   async monitor() {
     while (true) {
       await this.exportOnce();
@@ -456,7 +483,9 @@ export class App {
       });
     }
 
-    if (this.opts.monitor) {
+    if (this.opts.nxapiPresenceUrl) {
+      await this.monitorWithNxapi();
+    } else if (this.opts.monitor) {
       await this.monitor();
     } else {
       await this.exportOnce();
diff --git a/src/constant.ts b/src/constant.ts
index ad0ec0a..ea945ec 100644
--- a/src/constant.ts
+++ b/src/constant.ts
@@ -116,3 +116,5 @@ export const SPLATNET3_STATINK_MAP: {
     2: "high",
   },
 };
+
+export const SPLATOON3_TITLE_ID = "0100c2500fc20000";