diff --git a/app/adapters/ai.py b/app/adapters/ai.py
new file mode 100644
index 0000000..19e4fba
--- /dev/null
+++ b/app/adapters/ai.py
@@ -0,0 +1,110 @@
+"""AI 平台适配器（验证 Key + 余额/用量查询）
+
+各 AI 平台 API 差异较大，此处实现 test_connection（验证 Key，附带余额）
+与 get_account（余额）。余额接口可能随平台调整，填入真实凭证后以实际返回为准。
+所需配置统一为 {"api_key": "..."}（Minimax 另需 group_id）。
+"""
+
+import httpx
+
+from app.adapters.base import AccountInfo, BaseAdapter
+from app.adapters.registry import register
+
+
+class _AIBase(BaseAdapter):
+    """AI 适配器公共逻辑（Bearer Key + JSON GET）"""
+
+    required_config = ["api_key"]
+
+    def _headers(self) -> dict:
+        return {"Authorization": f"Bearer {self.config.get('api_key', '')}"}
+
+    def _get(self, url: str) -> dict:
+        with httpx.Client(timeout=30) as client:
+            resp = client.get(url, headers=self._headers())
+            resp.raise_for_status()
+            return resp.json()
+
+    def _http_error(self, e: httpx.HTTPStatusError) -> dict:
+        return {"ok": False, "message": f"HTTP {e.response.status_code}：API Key 无效或权限不足"}
+
+
+@register("deepseek-api")
+class DeepSeekAdapter(_AIBase):
+    BASE = "https://api.deepseek.com"
+
+    def _balance(self) -> AccountInfo:
+        data = self._get(self.BASE + "/user/balance").get("data", {})
+        try:
+            total = float(data.get("total_balance")) if data.get("total_balance") is not None else None
+        except (TypeError, ValueError):
+            total = None
+        return AccountInfo(balance=total, currency="CNY", raw=data)
+
+    def test_connection(self) -> dict:
+        try:
+            acc = self._balance()
+            return {"ok": True, "message": f"连接成功，余额 {acc.balance} CNY"}
+        except httpx.HTTPStatusError as e:
+            return self._http_error(e)
+        except Exception as e:  # noqa: BLE001
+            return {"ok": False, "message": str(e)}
+
+    def get_account(self) -> AccountInfo:
+        return self._balance()
+
+
+@register("moonshot-api")
+class KimiAdapter(_AIBase):
+    BASE = "https://api.moonshot.cn/v1"
+
+    def _balance(self) -> AccountInfo:
+        data = self._get(self.BASE + "/users/me/balance").get("data", {})
+        return AccountInfo(balance=data.get("available_balance"), currency="CNY", raw=data)
+
+    def test_connection(self) -> dict:
+        try:
+            acc = self._balance()
+            return {"ok": True, "message": f"连接成功，可用余额 {acc.balance} CNY"}
+        except httpx.HTTPStatusError as e:
+            return self._http_error(e)
+        except Exception as e:  # noqa: BLE001
+            return {"ok": False, "message": str(e)}
+
+    def get_account(self) -> AccountInfo:
+        return self._balance()
+
+
+@register("openai-api")
+class OpenAIAdapter(_AIBase):
+    BASE = "https://api.openai.com/v1"
+
+    def test_connection(self) -> dict:
+        try:
+            data = self._get(self.BASE + "/models")
+            count = len(data.get("data", []))
+            return {"ok": True, "message": f"连接成功，可用模型 {count} 个"}
+        except httpx.HTTPStatusError as e:
+            return self._http_error(e)
+        except Exception as e:  # noqa: BLE001
+            return {"ok": False, "message": str(e)}
+
+    def get_account(self) -> AccountInfo:
+        # OpenAI 余额接口需组织级权限，尝试旧版 billing，失败返回空
+        try:
+            data = self._get("https://api.openai.com/dashboard/billing/credit_grants")
+            return AccountInfo(balance=data.get("total_available"), currency="USD", raw=data)
+        except Exception:  # noqa: BLE001
+            return AccountInfo(balance=None, currency="USD", raw={})
+
+
+@register("minimax-api")
+class MinimaxAdapter(_AIBase):
+    # Minimax 需 group_id，余额接口因账号类型而异，此处为骨架待完善
+    required_config = ["api_key", "group_id"]
+    BASE = "https://api.minimax.chat/v1"
+
+    def test_connection(self) -> dict:
+        if not self.config.get("group_id"):
+            return {"ok": False, "message": "Minimax 需配置 group_id（适配器余额接口待完善）"}
+        return {"ok": False, "message": "Minimax 适配器余额接口待完善（请提供具体接口文档）"}
diff --git a/app/adapters/registry.py b/app/adapters/registry.py
index a3669b2..6750d60 100644
--- a/app/adapters/registry.py
+++ b/app/adapters/registry.py
@@ -26,6 +26,7 @@ def register(*sdk_types: str):
 def load_all() -> None:
     """导入所有适配器模块以触发注册（幂等）"""
     from app.adapters import (  # noqa: F401
+        ai,
         aliyun,
         cloudflare,
         digitalocean,
@@ -53,6 +54,18 @@ def supported_types() -> list:
     return sorted(_REGISTRY.keys())
 
 
+def sdk_capabilities() -> dict:
+    """返回 sdk_type -> capabilities 映射（供前端判断测试/同步按钮）"""
+    load_all()
+    result = {}
+    for sdk_type, cls in _REGISTRY.items():
+        try:
+            result[sdk_type] = cls({}).capabilities()
+        except Exception:  # noqa: BLE001
+            result[sdk_type] = {}
+    return result
+
+
 def adapter_meta() -> list:
     """返回所有已注册适配器的元信息（供前端展示所需凭证字段与能力）"""
     load_all()
diff --git a/app/routers/providers.py b/app/routers/providers.py
index 185e10c..a989c85 100644
--- a/app/routers/providers.py
+++ b/app/routers/providers.py
@@ -31,6 +31,7 @@ def adapters() -> dict:
     return {
         "adapters": registry.adapter_meta(),
         "supported_types": registry.supported_types(),
+        "capabilities": registry.sdk_capabilities(),
     }
 
 
diff --git a/static/js/app.js b/static/js/app.js
index 6c4aa05..5e62fc9 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -320,7 +320,7 @@ const ProvidersView = {
         <div class="flex gap-4 mt-3 pt-2 border-t border-slate-100 dark:border-slate-800 text-xs flex-wrap">
           <button @click="edit(p)" class="text-blue-600 dark:text-blue-400">编辑</button>
           <button v-if="isSupported(p.sdk_type)" @click="test(p)" :disabled="testing[p.id]" class="text-emerald-600 dark:text-emerald-400 disabled:opacity-50">{{ testing[p.id] ? '测试中…' : '测试连接' }}</button>
-          <button v-if="isSupported(p.sdk_type)" @click="sync(p)" :disabled="syncing[p.id]" class="text-violet-600 dark:text-violet-400 disabled:opacity-50">{{ syncing[p.id] ? '同步中…' : '同步资产' }}</button>
+          <button v-if="canSync(p.sdk_type)" @click="sync(p)" :disabled="syncing[p.id]" class="text-violet-600 dark:text-violet-400 disabled:opacity-50">{{ syncing[p.id] ? '同步中…' : '同步资产' }}</button>
           <button @click="del(p)" class="text-red-600 dark:text-red-400">删除</button>
         </div>
         <div v-if="results[p.id]" class="mt-2 text-xs px-2 py-1.5 rounded-lg break-words" :class="results[p.id].ok ? 'bg-emerald-500/10 text-emerald-600 dark:text-emerald-400' : 'bg-amber-500/10 text-amber-600 dark:text-amber-400'">{{ results[p.id].text }}</div>
@@ -332,10 +332,12 @@ const ProvidersView = {
     const syncing = reactive({});
     const results = reactive({});
     const supported = ref([]);
+    const capabilities = ref({});
     onMounted(async () => {
-      try { const r = await Api.get('/providers/adapters'); supported.value = r.supported_types || []; } catch (e) { /* ignore */ }
+      try { const r = await Api.get('/providers/adapters'); supported.value = r.supported_types || []; capabilities.value = r.capabilities || {}; } catch (e) { /* ignore */ }
     });
     function isSupported(t) { return !!t && supported.value.includes(t); }
+    function canSync(t) { const c = capabilities.value[t]; return !!(c && (c.list_vps || c.list_domains)); }
     function fmtTime(iso) {
       if (!iso) return '';
       return new Date(iso).toLocaleString('zh-CN', { month: '2-digit', day: '2-digit', hour: '2-digit', minute: '2-digit' });
@@ -363,7 +365,7 @@ const ProvidersView = {
       } catch (e) { results[p.id] = { ok: false, text: '✗ ' + e.message }; }
       finally { syncing[p.id] = false; }
     }
-    return { store, Fmt, testing, syncing, results, isSupported, fmtTime, test, sync, seed: seedProviders, create: openProviderCreate, edit: openProviderEdit, del: deleteProvider };
+    return { store, Fmt, testing, syncing, results, isSupported, canSync, fmtTime, test, sync, seed: seedProviders, create: openProviderCreate, edit: openProviderEdit, del: deleteProvider };
   },
 };
 
diff --git a/tests/test_adapters.py b/tests/test_adapters.py
index 55b6335..02846f9 100644
--- a/tests/test_adapters.py
+++ b/tests/test_adapters.py
@@ -9,6 +9,7 @@ import base64
 from unittest.mock import patch
 
 from app.adapters import registry
+from app.adapters.ai import DeepSeekAdapter, KimiAdapter, OpenAIAdapter
 from app.adapters.aliyun import AliyunAdapter
 from app.adapters.cloudflare import CloudflareAdapter
 from app.adapters.digitalocean import DigitalOceanAdapter
@@ -172,3 +173,50 @@ def test_registry_get_adapter_routing():
     assert isinstance(registry.get_adapter("alibabacloud-sdk", {}), AliyunAdapter)
     assert isinstance(registry.get_adapter("tencent-sdk", {}), TencentAdapter)
     assert isinstance(registry.get_adapter("tencent-intl-sdk", {}), TencentAdapter)
+
+
+# --------------------------- AI 平台适配器 --------------------------- #
+def test_deepseek_balance_normalization():
+    adapter = DeepSeekAdapter({"api_key": "x"})
+    mock = {"data": {"total_balance": "88.50", "granted_balance": "10.00"}}
+    with patch.object(DeepSeekAdapter, "_get", return_value=mock):
+        acc = adapter.get_account()
+    assert acc.balance == 88.5  # 字符串 -> float
+    assert acc.currency == "CNY"
+
+
+def test_deepseek_test_connection_includes_balance():
+    adapter = DeepSeekAdapter({"api_key": "x"})
+    with patch.object(DeepSeekAdapter, "_get", return_value={"data": {"total_balance": "88.50"}}):
+        result = adapter.test_connection()
+    assert result["ok"] is True
+    assert "88.5" in result["message"]
+
+
+def test_kimi_balance_normalization():
+    adapter = KimiAdapter({"api_key": "x"})
+    with patch.object(KimiAdapter, "_get", return_value={"data": {"available_balance": 123.45}}):
+        acc = adapter.get_account()
+    assert acc.balance == 123.45
+    assert acc.currency == "CNY"
+
+
+def test_openai_test_connection_models():
+    adapter = OpenAIAdapter({"api_key": "x"})
+    mock = {"data": [{"id": "gpt-4"}, {"id": "gpt-3.5-turbo"}]}
+    with patch.object(OpenAIAdapter, "_get", return_value=mock):
+        result = adapter.test_connection()
+    assert result["ok"] is True
+    assert "2" in result["message"]
+
+
+def test_ai_capabilities_account_only():
+    caps = DeepSeekAdapter({"api_key": "x"}).capabilities()
+    assert caps["get_account"] is True
+    assert caps["list_vps"] is False
+    assert caps["list_domains"] is False
+
+
+def test_registry_supports_ai_types():
+    for t in ["deepseek-api", "moonshot-api", "openai-api", "minimax-api"]:
+        assert registry.is_supported(t), f"{t} 应被支持"