diff --git a/api.md b/api.md
new file mode 100644
index 0000000..e6915d0
--- /dev/null
+++ b/api.md
@@ -0,0 +1,202 @@
+# Types
+
+## FileInfo
+
+`{"Path": string, "Size": long, "Progress": long, "Incoming": bool, "Status": Number(0-3)}`
+
+`Path`: A filesystem path to the file being sent.
+
+`Size`: Size of the file.
+
+`Progress`: Total number of bytes sent for the transfer.
+
+`Incoming`: If this file is from the local client, `false`, otherwise `true`.
+
+`Status`: The status of the transfer. [0: Not started, 1: In progress, 2: Cancelled, 3: Finished]
+
+## User
+
+Blank values are returned for all values if the `PassportSiteID` and/or `UserProperties` permissions are not enabled.
+
+All local client-only properties will be blank for the remote client's user.
+
+`{"EMail": string, "GlobalIP": string, "LocalIP": string, "Name": string, "PUID": string}`
+
+`EMail`: The contact email of the user.
+
+`GlobalIP`: Requires `EnableIP` permission. The fully-resolvable IP of the local client's user.
+
+`LocalIP`: Requires `EnableIP` permission. The IP given to us by the network of the local client's user.
+
+`Name`: The display name of the user.
+
+`PUID`: The Passport Unique ID of the local client's user.
+
+# Input functions
+
+## window.external
+
+### window.external.CloseApp()
+
+Signals the local client to close the Activity, therefore, closing the WebSocket connection to the Channel.
+
+## window.external.Channel
+
+### window.external.Channel.Initialize()
+
+Does nothing in messenger.js, otherwise executes Channel_OnRemoteAppLoaded() on the remote client's Activity window.
+
+### window.external.Channel.SendData(vDataValue: string)
+
+Sends the data through the Channel to the remote client.
+
+### window.external.Channel.EnterIM(IM: string)
+
+Requires `SendIM` permission. 
+
+Unimplemented. Sets the text input of the local client's chat-box to `IM`.
+
+### window.external.Channel.SendIM(myIM: string)
+
+Requires `SendIM` permission. 
+
+Unimplemented. Append the `myIM` data in the local client's chat-box with the author set to the Activity's name.
+
+### window.external.Channel.SendIMAsUser(bstrIM: string)
+
+Requires `ReplaceIM` permission. 
+
+Unimplemented. Send a message (`bstrIM`) as if written by the user through the channel.
+
+### window.external.Channel.SendFile(pdFileInfo: FileInfo)
+
+Requires `SendFile` and `ActiveX` permissions.
+
+Unimplemented. Send a file from the local client's storage device through the Channel.
+
+### window.external.Channel.CancelSendFile(aFileInfo: FileInfo)
+
+Requires `SendFile` and `ActiveX` permissions.
+
+Unimplemented. Cancel a file transfer operation.
+
+# Output functions
+
+## Channel_ events
+
+### Channel_OnAppClose
+
+Triggered when the Activity window is destroyed.
+
+Technical: Called by a beforeunload handler in messenger.js.
+
+### Channel_OnDataError
+
+Triggered if a `window.external.Channel.SendData()` were to fail on the local client.
+
+The local client should handle the Error object in `window.external.Error`:
+
+`Type`: long, Type of error thrown.
+`Data`: string, Data which failed to send.
+
+### Channel_OnDataReceived
+
+Triggered after the remote client calls `window.external.Channel.SendData()`.
+
+The local client should handle the data given in `window.external.Channel.Data` as a string.
+
+### Channel_OnFileProgress
+
+Unimplemented. Only fired if Activity has `SendFile` permission.
+
+Triggered after data has been sent over the channel to the remote client regarding a file transfer.
+
+### Channel_OnFileReceived
+
+Unimplemented. Only fired if Activity has `SendFile` permission.
+
+Triggered after a file transfer to the local client is received.
+
+### Channel_OnIMReceived
+
+Unimplemented. Only fired if Activity has `ReceiveIM` permission.
+
+Triggered by retriving a chat message to the local client.
+
+The local client should handle the data given in `window.external.Channel.IM` as a string.
+
+If the Activity was to have the `ReplaceIM` permission, `window.external.Channel.IM` is writable, for which the modified value will be the message sent to the chat-box.
+
+### Channel_OnRemoteAppClosed
+
+Triggered when the remote client's Activity window has been destroyed.
+
+The local client should be expected to clean up and display a "remote client has left" message.
+
+### Channel_OnRemoteAppLoaded
+
+Triggered when the remote client's Activity window has fired `window.external.Channel.Initialize()`.
+
+### Channel_OnSendFileCancelled
+
+Unimplemented. Only fired if Activity has `SendFile` permission.
+
+Triggered when a file transfer is cancelled by either client.
+
+### Channel_OnTypeChanged
+
+Triggered when the connection type changes.
+
+The local client can see the new connection type by getting `window.external.Channel.Type`, which provides these values:
+
+0: Direct connection, Switchboard connection exists, but the local client has a direct connection to the remote client.
+
+1: Indirect connection, Clients can send data, but must go through Switchboard.
+
+2: Disconnected, No connection to the remote client.
+
+
+# Other objects
+
+## window.external.Messenger
+
+### window.external.Messenger.Options(Page: int)
+
+Unimplemented. Opens the indexed options page (specified by `Page`, default of 0) of the local client.
+
+### window.external.Messenger.Phone(Phone: string)
+
+Unimplemented. Opens the phone dialer with a pre-filled number on the local client. Doesn't initiate the call.
+
+## window.external.Users
+
+### window.external.Users.Item(lPos: long)
+
+Returns the User object from the list of users in the Activity Channel.
+
+### window.external.Users[Symbol.iterator]
+
+Get the User object from the list of users in the Activity Channel.
+
+### window.external.Users.Count
+
+Get the number of total User objects in the list of users.
+
+### window.external.Users.Me
+
+Get the local client's User object from the list of users.
+
+### window.external.Users.Inviter
+
+Get the initiating client's User object from the list of users.
+
+# Permission Flags
+
+* `ActiveX`: Allows unspeakable evils.
+* `EnableIP`: Allows the local client to use the `LocalIP` and `GlobalIP` properties from it's own User object.
+* `PassportSiteID`: Allows the local client to use the `EMail` and `Name` properties in any User object, and `PUID` from it's own User object. Authenticates.
+* `ReceiveIM`: Allows the Activity to read Instant Messages sent from the remote client. Enables `Channel_OnIMReceived` event.
+* `ReplaceIM`: Allows the Activity to read and overwrite Instant Messages from the remote client, and send messages as the local client. Enables `Channel_OnIMReceived` event and the `Channel.SendIMAsUser` method.
+* `SendFile`: When combined with `ActiveX`, allows File operations to occur. Enables `Channel_OnFileReceived`, `Channel_OnSendFileCancelled` events, and `Channel.SendFile` and `Channel.CancelSendFile` methods.
+* `SendIM`: Allows the Activity to send Instant Messages or enter text into the local client's chat-box text input. Enables `Channel.EnterIM` and `Channel.SendIM` methods.
+* `UserProperties`: Allows the local client to use the `EMail` and `Name` properties in any User object, and `PUID` from it's own User object. Does not authenticate.
\ No newline at end of file
diff --git a/client.js b/client.js
index ff74311..1940761 100644
--- a/client.js
+++ b/client.js
@@ -1,4 +1,4 @@
-const channelSocket = new WebSocket("ws://localhost:9091/connect");
+const channelSocket = new WebSocket("ws://localhost:19180/connect");
 const __messengerjs__ = {
 	"sessionID": null, 
 	"imTheChannelOwner": false, 
@@ -243,7 +243,7 @@ channelSocket.onerror = function(ev) {
 	window.external.Channel.Error.Data = "WebSocket generic error";
 	__messengerjs__.fade.textContent = "encountered a WebSocket error"
 	__messengerjs__.fade.style.display = "block";
-	Channel_OnDataError();
+	__messengerjs__.callIfExists("Channel_OnDataError");
 }
 channelSocket.onclose = function() {
 	__messengerjs__.callIfExists("Channel_OnTypeChanged");
diff --git a/server.js b/server.js
index 76a0ea2..54951f9 100644
--- a/server.js
+++ b/server.js
@@ -1,4 +1,4 @@
-const config = {"__proto__": null, port: 9091};
+const config = {"__proto__": null, port: 19180};
 var uidcounter = 0;
 Object.freeze(config); // Config should not be modified after initialization!