diff --git a/kdeconnect/Cargo.toml b/kdeconnect/Cargo.toml
index 8ec6125..08266fb 100644
--- a/kdeconnect/Cargo.toml
+++ b/kdeconnect/Cargo.toml
@@ -3,7 +3,10 @@ name = "kdeconnect"
 version = "0.1.0"
 authors = ["Maciek Borzecki <maciek.borzecki@gmail.com>"]
 edition = "2018"
+license = "MIT"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
+serde = { version = "1.0", features = ["derive"] }
+serde_json = { version = "1.0", features = ["raw_value"]}
diff --git a/kdeconnect/src/lib.rs b/kdeconnect/src/lib.rs
index a6c14ff..757a7ed 100644
--- a/kdeconnect/src/lib.rs
+++ b/kdeconnect/src/lib.rs
@@ -1,10 +1,25 @@
-#[cfg(test)]
-mod tests {
-    #[test]
-    fn it_works() {
-        assert_eq!(2 + 2, 4);
-    }
-}
+// The MIT License (MIT)
+//
+// Copyright (c) 2020 Maciek Borzecki <maciek.borzecki@gmail.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+mod packet;
 
 pub fn bang() {
     println!("bang!");
diff --git a/kdeconnect/src/packet.rs b/kdeconnect/src/packet.rs
new file mode 100644
index 0000000..29960aa
--- /dev/null
+++ b/kdeconnect/src/packet.rs
@@ -0,0 +1,103 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2020 Maciek Borzecki <maciek.borzecki@gmail.com>
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+use serde::{Deserialize, Serialize};
+use serde_json::value::{RawValue, Value};
+
+// Identity type
+const  IDENTITY: &str = "kdeconnect.identity";
+// Pair type
+const PAIR : &str = "kdeconnect.pair";
+
+/// Represents an incoming packet. Only the type and ID deserialized. The
+/// actual payload is handled higher up the stack.
+#[derive(Deserialize)]
+pub struct IncomingPacket<'a> {
+    #[serde(rename = "type")]
+    typ: String,
+    id: String,
+    #[serde(borrow)]
+    body: &'a RawValue,
+}
+
+// Represents and outgoing packet.
+#[derive(Serialize)]
+pub struct Packet {
+    #[serde(rename = "type")]
+    typ: String,
+    id: String,
+    body: Value,
+}
+
+#[cfg(test)]
+mod tests {
+    use serde_json::{json, value::RawValue, value::Value, Result};
+
+    #[test]
+    fn packet_serialize_deserialize_simple() {
+        let s = serde_json::to_string(&super::Packet {
+            typ: "kdeconnect.foo".to_string(),
+            id: "123".to_string(),
+            body: json!("foobar foobar"),
+        })
+        .unwrap();
+
+        let back: Result<super::IncomingPacket> = serde_json::from_str(&s);
+        assert_eq!(back.is_ok(), true);
+
+        let v = back.unwrap();
+        assert_eq!(v.typ, "kdeconnect.foo");
+        assert_eq!(v.id, "123");
+        assert_eq!(v.body.get(), r#""foobar foobar""#)
+    }
+
+    #[test]
+    fn packet_serialize_deserialize_complex() {
+        let s = serde_json::to_string(&super::Packet {
+            typ: "kdeconnect.foo".to_string(),
+            id: "123".to_string(),
+            body: json!({
+                "foo": "bar",
+                "baz": 2,
+                "list": ["a", "b"],
+            }),
+        })
+        .unwrap();
+
+        let back: Result<super::IncomingPacket> = serde_json::from_str(&s);
+        assert_eq!(back.is_ok(), true);
+
+        let v = back.unwrap();
+        assert_eq!(v.typ, "kdeconnect.foo");
+        assert_eq!(v.id, "123");
+
+        let bv: Value = serde_json::from_str(v.body.get()).unwrap();
+        assert_eq!(
+            bv,
+            json!({
+                "foo": "bar",
+                "baz": 2,
+                "list": ["a", "b"],
+            })
+        );
+    }
+}