diff --git a/mahjong-utils-entry/src/wasmMain/kotlin/Main.kt b/mahjong-utils-entry/src/wasmMain/kotlin/Main.kt
new file mode 100644
index 0000000..4c8b2c5
--- /dev/null
+++ b/mahjong-utils-entry/src/wasmMain/kotlin/Main.kt
@@ -0,0 +1,19 @@
+@file:OptIn(ExperimentalJsExport::class)
+
+import mahjongutils.entry.MethodExecutionException
+import mahjongutils.entry.buildEntry
+import mahjongutils.entry.coder.JsonParamsDecoder
+import mahjongutils.entry.coder.JsonResultEncoder
+
+internal val ENTRY = buildEntry(JsonParamsDecoder, JsonResultEncoder)
+
+@JsExport
+fun call(name: String, rawParams: String): String {
+    return ENTRY.call(name, rawParams)
+}
+
+@JsExport
+@Throws(MethodExecutionException::class)
+fun callReceivingData(name: String, rawParams: String): String {
+    return ENTRY.callReceivingData(name, rawParams)
+}
diff --git a/mahjong-utils-entry/src/wasmTest/kotlin/TestEntry.kt b/mahjong-utils-entry/src/wasmTest/kotlin/TestEntry.kt
new file mode 100644
index 0000000..9d53991
--- /dev/null
+++ b/mahjong-utils-entry/src/wasmTest/kotlin/TestEntry.kt
@@ -0,0 +1,242 @@
+import kotlinx.serialization.encodeToString
+import kotlinx.serialization.json.Json
+import mahjongutils.entry.Result
+import mahjongutils.entry.models.HanHu
+import mahjongutils.hanhu.ChildPoint
+import mahjongutils.hanhu.ParentPoint
+import mahjongutils.hanhu.getChildPointByHanHu
+import mahjongutils.hanhu.getParentPointByHanHu
+import mahjongutils.hora.Hora
+import mahjongutils.hora.HoraArgs
+import mahjongutils.hora.hora
+import mahjongutils.models.Furo
+import mahjongutils.models.Tile
+import mahjongutils.models.Wind
+import mahjongutils.shanten.ChitoiShantenResult
+import mahjongutils.shanten.CommonShantenArgs
+import mahjongutils.shanten.KokushiShantenResult
+import mahjongutils.shanten.RegularShantenResult
+import mahjongutils.shanten.UnionShantenResult
+import mahjongutils.shanten.chitoiShanten
+import mahjongutils.shanten.kokushiShanten
+import mahjongutils.shanten.regularShanten
+import mahjongutils.shanten.shanten
+import mahjongutils.yaku.Yakus
+import kotlin.test.Test
+import kotlin.test.assertEquals
+
+class TestEntry {
+    @Test
+    fun testMethodNotFound() {
+        val rawResult = call("notExists", """{}""")
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Unit> = Json.decodeFromString(rawResult)
+        assertEquals(404, actualResult.code)
+    }
+
+    @Test
+    fun testInvalidArgument() {
+        ENTRY.register<Unit, Unit>("testInvalidArgument") { _ ->
+            throw IllegalArgumentException("Oops")
+        }
+
+        val rawResult = call("testInvalidArgument", """{}""")
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Unit> = Json.decodeFromString(rawResult)
+        assertEquals(400, actualResult.code)
+        assertEquals("Oops", actualResult.msg)
+    }
+
+    @Test
+    fun testInvalidArgument2() {
+        val rawResult = call("shanten", """{dfdafdfad}""")
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Unit> = Json.decodeFromString(rawResult)
+        assertEquals(400, actualResult.code)
+    }
+
+    @Test
+    fun testInternalError() {
+        ENTRY.register<Unit, Unit>("testInternalError") { _ ->
+            error("Oops")
+        }
+
+        val rawResult = call("testInternalError", """{}""")
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Unit> = Json.decodeFromString(rawResult)
+        assertEquals(500, actualResult.code)
+        assertEquals("Oops", actualResult.msg)
+    }
+
+    @Test
+    fun testShanten() {
+        val args = CommonShantenArgs(
+            Tile.parseTiles("11112345678s"),
+            listOf(Furo("999s")),
+            bestShantenOnly = true
+        )
+
+        val rawResult = call("shanten", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<UnionShantenResult> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = shanten(args.tiles, args.furo, args.bestShantenOnly)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testRegularShanten() {
+        val args = CommonShantenArgs(
+            Tile.parseTiles("11112345678s"),
+            listOf(Furo("999s")),
+            bestShantenOnly = true
+        )
+
+        val rawResult = call("regularShanten", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<RegularShantenResult> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult =
+            regularShanten(args.tiles, args.furo, args.bestShantenOnly)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testChitoiShanten() {
+        val args = CommonShantenArgs(
+            Tile.parseTiles("11223344z556789p"),
+            bestShantenOnly = true
+        )
+
+        val rawResult = call("chitoiShanten", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<ChitoiShantenResult> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = chitoiShanten(args.tiles, args.bestShantenOnly)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testKokushiShanten() {
+        val args = CommonShantenArgs(
+            Tile.parseTiles("11223344556677z"),
+            bestShantenOnly = true
+        )
+
+        val rawResult = call("kokushiShanten", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<KokushiShantenResult> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = kokushiShanten(args.tiles, args.bestShantenOnly)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testGetParentPointByHanHu() {
+        val args = HanHu(5, 30)
+
+        val rawResult = call("getParentPointByHanHu", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<ParentPoint> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = getParentPointByHanHu(args.han, args.hu)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testGetChildPointByHanHu() {
+        val args = HanHu(5, 30)
+
+        val rawResult = call("getChildPointByHanHu", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<ChildPoint> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = getChildPointByHanHu(args.han, args.hu)
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testHora() {
+        val args = HoraArgs(
+            tiles = Tile.parseTiles("11123456s"),
+            furo = listOf(Furo("0110z"), Furo("789s")),
+            agari = Tile.get("1s"),
+            tsumo = true,
+            dora = 4,
+            selfWind = Wind.East,
+            roundWind = Wind.North,
+            extraYaku = setOf(Yakus.Rinshan)
+        )
+
+        val rawResult = call("hora", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Hora> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = hora(
+            args.tiles!!, args.furo, args.agari,
+            args.tsumo, args.dora, args.selfWind, args.roundWind, args.extraYaku
+        )
+        assertEquals(exceptResult, actualResult.data)
+    }
+
+    @Test
+    fun testHora2() {
+        val shantenResult = shanten(
+            tiles = Tile.parseTiles("11123456s"),
+            furo = listOf(Furo("0110z"), Furo("789s")),
+            bestShantenOnly = true
+        )
+
+        val args = HoraArgs(
+            shantenResult = shantenResult,
+            agari = Tile.get("1s"),
+            tsumo = true,
+            dora = 4,
+            selfWind = Wind.East,
+            roundWind = Wind.North,
+            extraYaku = setOf(Yakus.Rinshan)
+        )
+
+        val rawResult = call("hora", Json.encodeToString(args))
+        print("rawResult: ")
+        println(rawResult)
+
+        val actualResult: Result<Hora> = Json.decodeFromString(rawResult)
+        assertEquals(200, actualResult.code)
+
+        val exceptResult = hora(
+            args.shantenResult!!, args.agari,
+            args.tsumo, args.dora, args.selfWind, args.roundWind, args.extraYaku
+        )
+        assertEquals(exceptResult, actualResult.data)
+    }
+}
\ No newline at end of file