diff --git a/backend/internal/service/upstream_billing_probe.go b/backend/internal/service/upstream_billing_probe.go
index 97603793e5..adf3d25277 100644
--- a/backend/internal/service/upstream_billing_probe.go
+++ b/backend/internal/service/upstream_billing_probe.go
@@ -1013,7 +1013,8 @@ func IsUpstreamBillingProbeIdentity(platform, accountType string) bool {
 	}
 	switch platform {
 	case PlatformOpenAI, PlatformAnthropic, PlatformGemini, PlatformAntigravity, PlatformGrok,
-		PlatformKimi, PlatformZhipu, PlatformDeepseek, PlatformMiniMax, PlatformOpenCodeGo:
+		PlatformKimi, PlatformZhipu, PlatformDeepseek, PlatformMiniMax, PlatformOpenCodeGo,
+		PlatformTypeSafe:
 		return true
 	default:
 		return false
@@ -1052,6 +1053,7 @@ var upstreamBillingProbeOfficialAPIDomains = []string{
 	"bigmodel.cn",
 	"deepseek.com",
 	"opencode.ai",
+	"typesafe.ai",
 }
 
 func upstreamBillingProbeTargetIsOfficialAPI(baseURL string) bool {
diff --git a/backend/internal/service/upstream_billing_probe_multiplatform_test.go b/backend/internal/service/upstream_billing_probe_multiplatform_test.go
index 450cec373c..2af41cff4a 100644
--- a/backend/internal/service/upstream_billing_probe_multiplatform_test.go
+++ b/backend/internal/service/upstream_billing_probe_multiplatform_test.go
@@ -17,6 +17,7 @@ func TestUpstreamBillingProbeIdentityCoversAllAPIKeyPlatforms(t *testing.T) {
 	for _, platform := range []string{
 		PlatformOpenAI, PlatformGrok, PlatformAnthropic, PlatformGemini, PlatformAntigravity,
 		PlatformKimi, PlatformZhipu, PlatformDeepseek, PlatformMiniMax, PlatformOpenCodeGo,
+		PlatformTypeSafe,
 	} {
 		require.True(t, IsUpstreamBillingProbeIdentity(platform, AccountTypeAPIKey), platform)
 		require.True(t, isUpstreamBillingProbeAccount(&Account{Platform: platform, Type: AccountTypeAPIKey}), platform)
@@ -174,6 +175,8 @@ func TestUpstreamBillingProbeOfficialAPIBaseURLIsUnsupportedWithoutRequest(t *te
 		{PlatformDeepseek, "https://api.deepseek.com/anthropic"},
 		{PlatformOpenCodeGo, "https://opencode.ai/zen/go/v1"},
 		{PlatformOpenCodeGo, "https://opencode.ai/zen/go"},
+		{PlatformTypeSafe, "https://api.typesafe.ai"},
+		{PlatformTypeSafe, "https://api.typesafe.ai/v1"},
 	}
 	for i, tc := range cases {
 		account := &Account{
@@ -217,6 +220,7 @@ func TestUpstreamBillingProbeOfficialAPIHostMatchingIsNormalized(t *testing.T) {
 	require.True(t, upstreamBillingProbeTargetIsOfficialAPI("https://api.deepseek.com/anthropic"))
 	require.True(t, upstreamBillingProbeTargetIsOfficialAPI("https://opencode.ai/zen/go/v1"))
 	require.True(t, upstreamBillingProbeTargetIsOfficialAPI("https://opencode.ai/zen/go"))
+	require.True(t, upstreamBillingProbeTargetIsOfficialAPI("https://api.typesafe.ai"))
 	// 相似但不同的注册域不拦：中转完全可能叫 *-x.ai 之外的任何名字。
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://relay.example/v1"))
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://notx.ai"))
@@ -228,6 +232,7 @@ func TestUpstreamBillingProbeOfficialAPIHostMatchingIsNormalized(t *testing.T) {
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://notmoonshot.cn/v1"))
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://moonshot.cn.evil.example/v1"))
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://kimi.example/v1"))
+	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://nottypesafe.ai"))
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://notbigmodel.cn"))
 	require.False(t, upstreamBillingProbeTargetIsOfficialAPI("https://deepseek.example.com"))
 }
@@ -276,3 +281,16 @@ func TestUpstreamBillingProbeSetAccountEnabledAcceptsGrokAPIKey(t *testing.T) {
 	err := svc.SetAccountEnabled(context.Background(), grokOAuth.ID, true)
 	require.ErrorIs(t, err, ErrUpstreamBillingProbeAccountInvalid)
 }
+
+func TestBuildAccountForCreateAcceptsTypeSafeAPIKeyWithProbeEnabled(t *testing.T) {
+	enabled := true
+	account, err := buildAccountForCreate(&CreateAccountInput{
+		Name:         "typesafe",
+		Platform:     PlatformTypeSafe,
+		Type:         AccountTypeAPIKey,
+		Credentials:  map[string]any{"api_key": "ts-key", "base_url": "https://api.typesafe.ai"},
+		ProbeEnabled: &enabled,
+	}, map[string]any{})
+	require.NoError(t, err)
+	require.Equal(t, true, account.Extra[UpstreamBillingProbeEnabledExtraKey])
+}