diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Account.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Account.kt
new file mode 100644
index 0000000..73ad8f1
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Account.kt
@@ -0,0 +1,9 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Account(
+    val name: String,
+    val label: String,
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Convocation.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Convocation.kt
new file mode 100644
index 0000000..026707c
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Convocation.kt
@@ -0,0 +1,9 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Convocation(
+    val available: List<Player> = emptyList(),
+    val staff: List<Staff> = emptyList(),
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Event.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Event.kt
new file mode 100644
index 0000000..c548a48
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Event.kt
@@ -0,0 +1,20 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Event(
+    @SerialName("id_event")
+    @Serializable(with = FlexibleStringSerializer::class)
+    val idEvent: String = "",
+    val agegroup: String = "",
+    val name: String = "",
+    val title: String = "",
+    val opponent: String = "",
+    val place: String = "",
+    val start: String = "",
+    val end: String = "",
+    val color: String? = null,
+    @SerialName("event") val eventType: String = "",
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/EventDetail.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/EventDetail.kt
new file mode 100644
index 0000000..a7be996
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/EventDetail.kt
@@ -0,0 +1,14 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.SerialName
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class EventDetail(
+    val title: String = "",
+    val type: String = "",
+    val place: String = "",
+    @SerialName("time_start") val timeStart: String = "",
+    @SerialName("time_end") val timeEnd: String = "",
+    val convocation: Convocation = Convocation(),
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/FlexibleStringSerializer.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/FlexibleStringSerializer.kt
new file mode 100644
index 0000000..e3084b3
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/FlexibleStringSerializer.kt
@@ -0,0 +1,26 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.KSerializer
+import kotlinx.serialization.SerializationException
+import kotlinx.serialization.descriptors.PrimitiveKind
+import kotlinx.serialization.descriptors.PrimitiveSerialDescriptor
+import kotlinx.serialization.descriptors.SerialDescriptor
+import kotlinx.serialization.encoding.Decoder
+import kotlinx.serialization.encoding.Encoder
+import kotlinx.serialization.json.JsonDecoder
+import kotlinx.serialization.json.jsonPrimitive
+
+object FlexibleStringSerializer : KSerializer<String> {
+    override val descriptor: SerialDescriptor =
+        PrimitiveSerialDescriptor("FlexibleString", PrimitiveKind.STRING)
+
+    override fun serialize(encoder: Encoder, value: String) {
+        encoder.encodeString(value)
+    }
+
+    override fun deserialize(decoder: Decoder): String {
+        val jsonDecoder = decoder as? JsonDecoder
+            ?: throw SerializationException("FlexibleStringSerializer expects JsonDecoder")
+        return jsonDecoder.decodeJsonElement().jsonPrimitive.content
+    }
+}
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Player.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Player.kt
new file mode 100644
index 0000000..4ad53e6
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Player.kt
@@ -0,0 +1,12 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Player(
+    val position: String? = null,
+    @Serializable(with = FlexibleStringSerializer::class) val number: String? = null,
+    val fname: String,
+    val lname: String,
+    val dob: String,
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Staff.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Staff.kt
new file mode 100644
index 0000000..8ca1d6b
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/Staff.kt
@@ -0,0 +1,10 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class Staff(
+    val role: String,
+    val fname: String,
+    val lname: String,
+)
diff --git a/composeApp/src/commonMain/kotlin/ch/parano/myice/models/UserInfo.kt b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/UserInfo.kt
new file mode 100644
index 0000000..286252e
--- /dev/null
+++ b/composeApp/src/commonMain/kotlin/ch/parano/myice/models/UserInfo.kt
@@ -0,0 +1,8 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.Serializable
+
+@Serializable
+data class UserInfo(
+    val email: String = "",
+)
diff --git a/composeApp/src/commonTest/kotlin/ch/parano/myice/models/ModelSerializationTest.kt b/composeApp/src/commonTest/kotlin/ch/parano/myice/models/ModelSerializationTest.kt
new file mode 100644
index 0000000..73093c1
--- /dev/null
+++ b/composeApp/src/commonTest/kotlin/ch/parano/myice/models/ModelSerializationTest.kt
@@ -0,0 +1,183 @@
+package ch.parano.myice.models
+
+import kotlinx.serialization.json.Json
+import kotlin.test.Test
+import kotlin.test.assertEquals
+import kotlin.test.assertNull
+
+class ModelSerializationTest {
+
+    private val json = Json { ignoreUnknownKeys = true }
+
+    @Test
+    fun testAccountDeserialization() {
+        val input = """{"name":"default","label":"Default"}"""
+        val account = json.decodeFromString<Account>(input)
+        assertEquals("default", account.name)
+        assertEquals("Default", account.label)
+    }
+
+    @Test
+    fun testEventDeserialization() {
+        val input = """
+            {
+                "id_event": 761040,
+                "agegroup": "U13 (Elite)",
+                "name": "U13 Elite - HC Ajoie",
+                "title": "U13 (Elite)\nGame\nRaiffeisen Arena",
+                "opponent": "HC Ajoie",
+                "place": "Raiffeisen Arena, Porrentruy",
+                "start": "2024-11-10T14:00:00",
+                "end": "2024-11-10T16:15:00",
+                "color": "#e4222e",
+                "event": "Jeu"
+            }
+        """.trimIndent()
+        val event = json.decodeFromString<Event>(input)
+        assertEquals("761040", event.idEvent)
+        assertEquals("U13 (Elite)", event.agegroup)
+        assertEquals("U13 Elite - HC Ajoie", event.name)
+        assertEquals("HC Ajoie", event.opponent)
+        assertEquals("#e4222e", event.color)
+        assertEquals("Jeu", event.eventType)
+    }
+
+    @Test
+    fun testEventDeserializationWithNullFields() {
+        val input = """
+            {
+                "id_event": "12345",
+                "agegroup": "U15",
+                "name": "",
+                "title": "Practice",
+                "opponent": "",
+                "place": "Les Vernets",
+                "start": "2024-11-10T14:00:00",
+                "end": "2024-11-10T15:30:00"
+            }
+        """.trimIndent()
+        val event = json.decodeFromString<Event>(input)
+        assertEquals("12345", event.idEvent)
+        assertEquals("", event.name)
+        assertEquals("", event.opponent)
+        assertNull(event.color)
+        assertEquals("", event.eventType)
+    }
+
+    @Test
+    fun testPlayerWithIntNumber() {
+        val input = """
+            {"position":"Gardien","number":1,"fname":"Jean","lname":"Dupont","dob":"2012-03-15"}
+        """.trimIndent()
+        val player = json.decodeFromString<Player>(input)
+        assertEquals("Gardien", player.position)
+        assertEquals("1", player.number)
+        assertEquals("Jean", player.fname)
+    }
+
+    @Test
+    fun testPlayerWithStringNumber() {
+        val input = """
+            {"position":"Attaquant","number":"27","fname":"Pierre","lname":"Martin","dob":"2012-05-20"}
+        """.trimIndent()
+        val player = json.decodeFromString<Player>(input)
+        assertEquals("27", player.number)
+    }
+
+    @Test
+    fun testPlayerWithNullNumber() {
+        val input = """
+            {"position":null,"number":null,"fname":"Paul","lname":"Durand","dob":"2012-01-10"}
+        """.trimIndent()
+        val player = json.decodeFromString<Player>(input)
+        assertNull(player.position)
+        assertNull(player.number)
+    }
+
+    @Test
+    fun testStaffDeserialization() {
+        val input = """
+            {"role":"Coach","fname":"Jean","lname":"Dupont"}
+        """.trimIndent()
+        val staff = json.decodeFromString<Staff>(input)
+        assertEquals("Coach", staff.role)
+        assertEquals("Jean", staff.fname)
+        assertEquals("Dupont", staff.lname)
+    }
+
+    @Test
+    fun testConvocationDeserialization() {
+        val input = """
+            {
+                "available": [
+                    {"position":"Gardien","number":1,"fname":"Jean","lname":"Dupont","dob":"2012-03-15"}
+                ],
+                "staff": [
+                    {"role":"Coach","fname":"Marc","lname":"Blanc"}
+                ]
+            }
+        """.trimIndent()
+        val convocation = json.decodeFromString<Convocation>(input)
+        assertEquals(1, convocation.available.size)
+        assertEquals("1", convocation.available[0].number)
+        assertEquals(1, convocation.staff.size)
+        assertEquals("Coach", convocation.staff[0].role)
+    }
+
+    @Test
+    fun testConvocationWithEmptyArrays() {
+        val input = """{"available":[],"staff":[]}"""
+        val convocation = json.decodeFromString<Convocation>(input)
+        assertEquals(0, convocation.available.size)
+        assertEquals(0, convocation.staff.size)
+    }
+
+    @Test
+    fun testEventDetailDeserialization() {
+        val input = """
+            {
+                "title": "U13 (Elite) - Saison HC Ajoie",
+                "type": "games",
+                "place": "Raiffeisen Arena, Porrentruy",
+                "time_start": "2024-11-10T14:00:00",
+                "time_end": "2024-11-10T16:15:00",
+                "is_away": "1",
+                "convocation": {
+                    "available": [],
+                    "staff": []
+                }
+            }
+        """.trimIndent()
+        val detail = json.decodeFromString<EventDetail>(input)
+        assertEquals("U13 (Elite) - Saison HC Ajoie", detail.title)
+        assertEquals("games", detail.type)
+        assertEquals("2024-11-10T14:00:00", detail.timeStart)
+        assertEquals(0, detail.convocation.available.size)
+    }
+
+    @Test
+    fun testUserInfoDeserialization() {
+        val input = """{"email":"rene@luria.ch","sub":"abc123"}"""
+        val userInfo = json.decodeFromString<UserInfo>(input)
+        assertEquals("rene@luria.ch", userInfo.email)
+    }
+
+    @Test
+    fun testEventRoundTripSerialization() {
+        val event = Event(
+            idEvent = "761040",
+            agegroup = "U13 (Elite)",
+            name = "U13 Elite - HC Ajoie",
+            title = "U13 (Elite)\nGame\nArena",
+            opponent = "HC Ajoie",
+            place = "Arena",
+            start = "2024-11-10T14:00:00",
+            end = "2024-11-10T16:15:00",
+            color = "#e4222e",
+            eventType = "Jeu",
+        )
+        val jsonString = json.encodeToString(Event.serializer(), event)
+        val decoded = json.decodeFromString<Event>(jsonString)
+        assertEquals(event, decoded)
+    }
+}