diff --git a/app/src/androidTest/java/jp/juggler/subwaytooter/api/TestTootApiClient.kt b/app/src/androidTest/java/jp/juggler/subwaytooter/api/TestTootApiClient.kt
index 61bf0948..65399cd2 100644
--- a/app/src/androidTest/java/jp/juggler/subwaytooter/api/TestTootApiClient.kt
+++ b/app/src/androidTest/java/jp/juggler/subwaytooter/api/TestTootApiClient.kt
@@ -1190,20 +1190,20 @@ class TestTootApiClient {
 
     @Test
     fun testGetInstanceInformation() = runTest {
-            val callback = ProgressRecordTootApiCallback()
-            val client = TootApiClient(
-                appContext,
-                httpClient = createHttpClientMock(),
-                callback = callback
-            )
-            val instance = Host.parse("unit-test")
-            client.apiHost = instance
-            val (instanceInfo, instanceResult) = TootInstance.get(client)
-            assertNull("no error", instanceResult?.error)
-            assertNotNull("instance info", instanceInfo)
-            val json = instanceResult?.jsonObject
-            if (json != null) println(json.toString())
-        }
+        val callback = ProgressRecordTootApiCallback()
+        val client = TootApiClient(
+            appContext,
+            httpClient = createHttpClientMock(),
+            callback = callback
+        )
+        val instance = Host.parse("unit-test")
+        client.apiHost = instance
+        val (instanceInfo, instanceResult) = TootInstance.get(client)
+        assertNull("no error", instanceResult?.error)
+        assertNotNull("instance info", instanceInfo)
+        val json = instanceResult?.jsonObject
+        if (json != null) println(json.toString())
+    }
 
     @Test
     fun testGetHttp() = runTest {
@@ -1265,7 +1265,7 @@ class TestTootApiClient {
         )
         client.account = accessInfo
         val (_, ws) = client.webSocket(
-            "/api/v1/streaming/?stream=public:local",
+            "wss://${accessInfo.apiHost.ascii}/api/v1/streaming/?stream=public:local",
             object : WebSocketListener() {}
         )
         assertNotNull(ws)
diff --git a/app/src/main/java/jp/juggler/subwaytooter/api/TootApiClient.kt b/app/src/main/java/jp/juggler/subwaytooter/api/TootApiClient.kt
index e2b73cf1..58a53d1d 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/api/TootApiClient.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/api/TootApiClient.kt
@@ -489,7 +489,7 @@ class TootApiClient(
     }
 
     suspend fun webSocket(
-        path: String,
+        urlArg: String,
         wsListener: WebSocketListener,
     ): Pair<TootApiResult?, WebSocket?> {
         var ws: WebSocket? = null
@@ -497,10 +497,8 @@ class TootApiClient(
         if (result.error != null) return Pair(result, null)
         val account = this.account ?: return Pair(TootApiResult("account is null"), null)
         try {
-            var url = "wss://${apiHost?.ascii}$path"
-
             val requestBuilder = Request.Builder()
-
+            var url = urlArg
             if (account.isMisskey) {
                 val accessToken = account.misskeyApiToken
                 if (accessToken?.isNotEmpty() == true) {
@@ -515,7 +513,7 @@ class TootApiClient(
             }
 
             val request = requestBuilder.url(url).build()
-            publishApiProgress(context.getString(R.string.request_api, request.method, path))
+            publishApiProgress(context.getString(R.string.request_api, request.method, urlArg))
             ws = httpClient.getWebSocket(request, wsListener)
             if (isApiCancelled()) {
                 ws.cancel()
diff --git a/app/src/main/java/jp/juggler/subwaytooter/api/entity/TootInstance.kt b/app/src/main/java/jp/juggler/subwaytooter/api/entity/TootInstance.kt
index 1bf2f56a..501c3243 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/api/entity/TootInstance.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/api/entity/TootInstance.kt
@@ -166,7 +166,7 @@ class TootInstance(parser: TootParser, src: JsonObject) {
 
     var configuration: JsonObject? = null
 
-    // XXX: urls をパースしてない。使ってないから…
+    var urls: JsonObject? = null
 
     init {
         if (parser.serviceType == ServiceType.MISSKEY) {
@@ -252,6 +252,7 @@ class TootInstance(parser: TootParser, src: JsonObject) {
                     ?.stringList()?.toSet()
 
             this.configuration = src.jsonObject("configuration")
+            this.urls = src.jsonObject("urls")
         }
     }
 
diff --git a/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamConnection.kt b/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamConnection.kt
index 2c0b9be5..341aea0c 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamConnection.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamConnection.kt
@@ -507,13 +507,24 @@ class StreamConnection(
 
         status = StreamStatus.Connecting
 
-        val path = group?.spec?.path ?: when {
-            acctGroup.account.isMisskey -> "/streaming"
-            else -> "/api/v1/streaming/"
+        val url = when {
+            acctGroup.account.isMisskey ->
+                "wss://${acctGroup.account.apiHost.ascii}${group?.spec?.misskeyPath ?: "/streaming"}"
+            else -> {
+                val ti = TootInstance.getCached(acctGroup.account.apiHost)
+                val prefix = ti?.urls?.string("streaming_api")
+                    ?: "wss://${acctGroup.account.apiHost}"
+                val path = when (val query = group?.spec?.mastodonQuery) {
+                    null, "" -> "/api/v1/streaming/"
+                    else -> "/api/v1/streaming/?${query}"
+                }
+                "$prefix$path"
+            }
         }
 
         val (result, ws) = try {
-            client.webSocket(path, this)
+            log.i("webSocket $url")
+            client.webSocket(url, this)
         } catch (ex: Throwable) {
             Pair(TootApiResult(ex.withCaption("can't create WebSocket.")), null)
         }
diff --git a/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamSpec.kt b/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamSpec.kt
index 7a77e05f..f2c733a7 100644
--- a/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamSpec.kt
+++ b/app/src/main/java/jp/juggler/subwaytooter/streaming/StreamSpec.kt
@@ -34,7 +34,8 @@ private fun StringWriter.appendValue(v: Any?) {
 
 class StreamSpec(
     val params: JsonObject,
-    val path: String,
+    val misskeyPath: String? = null,
+    val mastodonQuery: String? = null,
     val name: String,
     val streamFilter: Column.(JsonArray, TimelineItem) -> Boolean = { _, _ -> true },
 ) {
@@ -44,7 +45,8 @@ class StreamSpec(
         const val PARAMS = "params"
     }
 
-    val keyString = "$path?${params.toString(indentFactor = 0, sort = true)}"
+    val keyString =
+        "${misskeyPath ?: mastodonQuery}?${params.toString(indentFactor = 0, sort = true)}"
 
     val channelId = keyString.digestSHA256Base64Url()
 
@@ -82,7 +84,7 @@ private fun Column.streamSpecMastodon(): StreamSpec? {
 
     return StreamSpec(
         params = root,
-        path = "/api/v1/streaming/?${root.encodeQuery()}",
+        mastodonQuery = root.encodeQuery(),
         name = encodeStreamNameMastodon(root),
         streamFilter = type.streamFilterMastodon
     )
@@ -133,7 +135,7 @@ fun Column.streamSpecMisskey(): StreamSpec? {
 
     return StreamSpec(
         params = root,
-        path = path,
+        misskeyPath = path,
         name = encodeStreamNameMisskey(root),
         // no stream filter
     )