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+
+
+The API is a new feature that allows users to interact with external applications via SMS and send messages users on other HBLink servers. The API is built into the D-APRS dashboard. All interaction takes place over HTTP POST requests in JSON format. This allows a single application to be used by multiple servers. Applications can be delevopen in multiple langauges.
+
+There are presently 3 modes for data  exchange, "msg_xfer", "app", and "raw". msg_xfer is used to send a message. With msg_xfer, there are 2 authentication types, "public" and "private".
+
+## msg_xfer, private authentication
+
+`
+{
+    "mode": "msg_xfer",
+    "system_shortcut": "ABC",
+    "server_name": "Test HBlink Network",
+    "response_url": "http://localhost:8093/api/",
+    "auth_type": "private",
+    "credentials": {
+        "user": "test_name",
+        "password": "passw0rd"
+    },
+    "data": {
+        "1": {
+            "source_id": 1234,
+            "destination_id": 3153591,
+            "slot": 2,
+            "msg_type": "unit",
+            "msg_format": "motorola",
+            "message": "text of the message"
+        },
+        "2": {
+            "source_id": 1234,
+            "destination_id": 3153591,
+            "slot": 2,
+            "msg_type": "unit",
+            "msg_format": "motorola",
+            "message": "text of the 2nd message"
+        }
+    }
+}
+
+`
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