diff --git a/Changelog.md b/Changelog.md
index c2e853a..7a79c6f 100644
--- a/Changelog.md
+++ b/Changelog.md
@@ -1,5 +1,8 @@
 # Changelog
 
+# v0.9.1 - 16th May 2019
+ - [API] Changed the default action. It now displays a helpful message by default instead of routing directly to `fetch-data`.
+
 # v0.9 - 9th May 2019
  - Add heatmap gauge at the right-hand-side
  - Display the changelog the first time a user loads the page after an update
diff --git a/docs/05-API-Docs.md b/docs/05-API-Docs.md
index 0b792bf..36f9b81 100644
--- a/docs/05-API-Docs.md
+++ b/docs/05-API-Docs.md
@@ -1,5 +1,7 @@
 # API
-The server-side API is accessed through `api.php`, and supports a number of GET parameters. The most important of these is the `action` parameter, Which determines what the API will do. The following values are supported:
+The server-side API is accessed through `api.php`, and supports a number of GET parameters. On the main production instance, this can be found [here](https://aq.connectedhumber.org/api.php).
+
+The most important of these is the `action` parameter, Which determines what the API will do. The following values are supported:
 
 ## version
 > Returns the version of the application.
diff --git a/logic/Actions/Index.php b/logic/Actions/Index.php
new file mode 100644
index 0000000..b5838ba
--- /dev/null
+++ b/logic/Actions/Index.php
@@ -0,0 +1,45 @@
+<?php
+
+namespace AirQuality\Actions;
+
+use \SBRL\TomlConfig;
+
+use \AirQuality\PerfFormatter;
+
+class Changelog implements IAction {
+	/** @var TomlConfig */
+	private $settings;
+	
+	/** @var \ParsedownExtra */
+	private $parsedown_ext;
+	
+	public function __construct(
+		TomlConfig $in_settings) {
+		$this->settings = $in_settings;
+	}
+	
+	public function handle() : bool {
+		global $start_time;
+		
+		$start_handle = microtime(true);
+		
+		
+		// 1: Parse markdown
+		$result = "Welcome to the Air Quality Web HTTP API!
+
+Although the web interface is the default thing you see, it actually uses this HTTP API as a backend - which can be interacted with directly.
+
+Official usage documentation for the latest version of the API can be found here: https://aq.connectedhumber.org/__nightdocs/05-API-Docs.html
+
+Note that if you have deployed your own version of the air quality web interface, you will need to ensure you're up-to-date with the latest commits in the \"master\" branch, otherwise the HTTP API documentation may not be completely accurate with respect to the version you're running.
+";
+		
+		
+		// 2: Send response
+		header("content-length: " . strlen($result));
+		header("content-type: text/plain");
+		header("x-time-taken: " . PerfFormatter::format_perf_data($start_time, $start_handle, null));
+		echo($result);
+		return true;
+	}
+}
diff --git a/package.json b/package.json
index 565a602..5e46503 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "air-quality-mapper",
-	"version": "0.1.0",
+	"version": "0.9.1",
 	"description": "The web interface and JSON api for the ConnectedHumber Air Quality Monitoring Project.",
 	"private": true,
 	"main": "index.mjs",
diff --git a/settings.default.toml b/settings.default.toml
index 9c3f562..9a71230 100644
--- a/settings.default.toml
+++ b/settings.default.toml
@@ -26,7 +26,7 @@ password = "Define_in_custom_config_file"
 # Settings that control the router's behaviour
 
 # The default action to take if no action is specified
-default-action = "fetch-data"
+default-action = "index"
 
 [cache]
 # Settings that control how we request that appropriate API responses be cached.
diff --git a/version b/version
index 1bd5ffe..e6e6db4 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-v0.9.1
+v0.9.2