feat(accounts): add adaptive API protocol routing

backend/internal/domain/constants.go

@@ -44,6 +44,7 @@ const (
 	APIProtocolChatCompletions = "chat_completions" // OpenAI Chat Completions（默认）
 	APIProtocolAnthropic       = "anthropic"        // 原生 Anthropic /v1/messages（适配 Claude Code）
 	APIProtocolResponses       = "responses"        // OpenAI Responses（仅 deepseek，适配 Codex）
+	APIProtocolAdaptive        = "adaptive"         // 按入站协议优先选择供应商原生端点
 )
 
 // Account type constants

backend/internal/service/account.go

@@ -1310,6 +1310,13 @@ func (a *Account) GetOpenAIBaseURL() string {
 	if !a.IsOpenAI() && !a.IsCNProvider() {
 		return ""
 	}
+	if a.IsCNProvider() && a.IsAdaptiveAPIProtocol() {
+		if baseURLs, ok := a.Credentials["api_base_urls"].(map[string]any); ok {
+			if baseURL, ok := baseURLs[APIProtocolChatCompletions].(string); ok && strings.TrimSpace(baseURL) != "" {
+				return strings.TrimSpace(baseURL)
+			}
+		}
+	}
 	if a.Type == AccountTypeAPIKey || a.Type == AccountTypeUpstream {
 		if baseURL := strings.TrimSpace(a.GetCredential("base_url")); baseURL != "" {
 			return baseURL
@@ -1361,6 +1368,8 @@ func (a *Account) GetAPIProtocol() string {
 		return APIProtocolChatCompletions
 	}
 	switch strings.TrimSpace(a.GetCredential("api_protocol")) {
+	case APIProtocolAdaptive:
+		return APIProtocolAdaptive
 	case APIProtocolAnthropic:
 		return APIProtocolAnthropic
 	case APIProtocolResponses:
@@ -1373,6 +1382,66 @@ func (a *Account) GetAPIProtocol() string {
 	return APIProtocolChatCompletions
 }
 
+// IsAdaptiveAPIProtocol 报告账号是否按入站协议动态选择供应商原生端点。
+func (a *Account) IsAdaptiveAPIProtocol() bool {
+	return a.GetAPIProtocol() == APIProtocolAdaptive
+}
+
+// GetCNProtocolBaseURL 返回国产供应商指定协议的上游 base URL。
+// adaptive 账号优先使用 api_base_urls 中的分协议地址，缺失时按平台和
+// account_mode 使用官方默认端点。base_url 继续作为 Chat Completions 地址兼容旧字段。
+func (a *Account) GetCNProtocolBaseURL(protocol string) string {
+	if a == nil || !a.IsCNProvider() {
+		return ""
+	}
+	if a.IsAdaptiveAPIProtocol() {
+		if baseURLs, ok := a.Credentials["api_base_urls"].(map[string]any); ok {
+			if baseURL, ok := baseURLs[protocol].(string); ok && strings.TrimSpace(baseURL) != "" {
+				return strings.TrimSpace(baseURL)
+			}
+		}
+		if protocol == APIProtocolChatCompletions {
+			if baseURL := strings.TrimSpace(a.GetCredential("base_url")); baseURL != "" {
+				return baseURL
+			}
+		}
+	}
+	return a.defaultCNProtocolBaseURL(protocol)
+}
+
+func (a *Account) defaultCNProtocolBaseURL(protocol string) string {
+	switch protocol {
+	case APIProtocolAnthropic:
+		switch a.Platform {
+		case PlatformKimi:
+			if a.GetAccountMode() == AccountModeCoding {
+				return DefaultKimiCodingAnthropicBaseURL
+			}
+			return DefaultKimiPayGAnthropicBaseURL
+		case PlatformZhipu:
+			return DefaultZhipuAnthropicBaseURL
+		case PlatformDeepseek:
+			return DefaultDeepseekAnthropicBaseURL
+		}
+	case APIProtocolChatCompletions, APIProtocolResponses:
+		switch a.Platform {
+		case PlatformKimi:
+			if a.GetAccountMode() == AccountModeCoding {
+				return DefaultKimiCodingBaseURL
+			}
+			return DefaultKimiPayGBaseURL
+		case PlatformZhipu:
+			if a.GetAccountMode() == AccountModeCoding {
+				return DefaultZhipuCodingBaseURL
+			}
+			return DefaultZhipuPayGBaseURL
+		case PlatformDeepseek:
+			return DefaultDeepseekBaseURL
+		}
+	}
+	return ""
+}
+
 // IsAnthropicProtocol 报告账号是否以原生 Anthropic 协议接入上游
 // （/v1/messages 直通，适配 Claude Code 等客户端）。
 func (a *Account) IsAnthropicProtocol() bool {
@@ -1383,9 +1452,12 @@ func (a *Account) IsAnthropicProtocol() bool {
 // （上游路径为 {base}/v1/messages）。优先取凭证 base_url，缺失时按
 // 供应商 × 接入模式返回默认端点。非 Anthropic 协议账号返回空串。
 func (a *Account) GetAnthropicProtocolBaseURL() string {
-	if a == nil || !a.IsAnthropicProtocol() {
+	if a == nil || (!a.IsAnthropicProtocol() && !a.IsAdaptiveAPIProtocol()) {
 		return ""
 	}
+	if a.IsAdaptiveAPIProtocol() {
+		return a.GetCNProtocolBaseURL(APIProtocolAnthropic)
+	}
 	if a.Type == AccountTypeAPIKey || a.Type == AccountTypeUpstream {
 		if baseURL := strings.TrimSpace(a.GetCredential("base_url")); baseURL != "" {
 			return baseURL

backend/internal/service/account_test_service.go

@@ -285,7 +285,8 @@ func (s *AccountTestService) TestAccountConnection(c *gin.Context, accountID int
 	}
 
 	// Route to platform-specific test method
-	if account.IsCNProvider() && account.GetAPIProtocol() == APIProtocolChatCompletions {
+	if account.IsCNProvider() &&
+		(account.GetAPIProtocol() == APIProtocolChatCompletions || account.IsAdaptiveAPIProtocol()) {
 		return s.testCNProviderChatCompletionsConnection(c, account, modelID, prompt)
 	}
 

backend/internal/service/adaptive_api_protocol_test.go

@@ -0,0 +1,124 @@
+//go:build unit
+
+package service
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+
+	"github.com/gin-gonic/gin"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func adaptiveProtocolTestAccount(platform string, baseURLs map[string]any) *Account {
+	return &Account{
+		ID:          701,
+		Name:        "adaptive-cn",
+		Platform:    platform,
+		Type:        AccountTypeAPIKey,
+		Concurrency: 1,
+		Credentials: map[string]any{
+			"api_key":       "sk-test",
+			"api_protocol":  APIProtocolAdaptive,
+			"account_mode":  AccountModePayG,
+			"api_base_urls": baseURLs,
+		},
+	}
+}
+
+func adaptiveProtocolTestContext(path string, body []byte) *gin.Context {
+	recorder := httptest.NewRecorder()
+	c, _ := gin.CreateTestContext(recorder)
+	c.Request = httptest.NewRequest(http.MethodPost, path, bytes.NewReader(body))
+	c.Request.Header.Set("Content-Type", "application/json")
+	return c
+}
+
+func TestAdaptiveProtocolRoutesChatCompletionsToNativeChat(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	body := []byte(`{"model":"glm-4.7","messages":[{"role":"user","content":"hello"}],"stream":false}`)
+	upstream := &httpUpstreamRecorder{err: errors.New("stop after capture")}
+	svc := &OpenAIGatewayService{cfg: rawChatCompletionsTestConfig(), httpUpstream: upstream}
+	account := adaptiveProtocolTestAccount(PlatformZhipu, map[string]any{
+		APIProtocolChatCompletions: "http://chat.example",
+		APIProtocolAnthropic:       "http://anthropic.example",
+	})
+
+	_, err := svc.ForwardAsChatCompletions(context.Background(), adaptiveProtocolTestContext("/v1/chat/completions", body), account, body, "", "")
+	require.Error(t, err)
+	require.Equal(t, "http://chat.example/v1/chat/completions", upstream.lastReq.URL.String())
+	require.True(t, gjson.GetBytes(upstream.lastBody, "messages").IsArray())
+	require.False(t, gjson.GetBytes(upstream.lastBody, "input").Exists())
+}
+
+func TestAdaptiveProtocolRoutesMessagesToNativeAnthropic(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	body := []byte(`{"model":"glm-4.7","max_tokens":32,"messages":[{"role":"user","content":"hello"}],"stream":false}`)
+	upstream := &httpUpstreamRecorder{err: errors.New("stop after capture")}
+	svc := &OpenAIGatewayService{cfg: rawChatCompletionsTestConfig(), httpUpstream: upstream}
+	account := adaptiveProtocolTestAccount(PlatformZhipu, map[string]any{
+		APIProtocolChatCompletions: "http://chat.example",
+		APIProtocolAnthropic:       "http://anthropic.example",
+	})
+
+	_, err := svc.ForwardAsAnthropic(context.Background(), adaptiveProtocolTestContext("/v1/messages", body), account, body, "", "")
+	require.Error(t, err)
+	require.Equal(t, "http://anthropic.example/v1/messages", upstream.lastReq.URL.String())
+	require.Equal(t, "glm-4.7", gjson.GetBytes(upstream.lastBody, "model").String())
+}
+
+func TestAdaptiveProtocolConvertsKimiResponsesToChatCompletions(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	body := []byte(`{"model":"kimi-k2.5","input":"hello","stream":false}`)
+	upstream := &httpUpstreamRecorder{err: errors.New("stop after capture")}
+	svc := &OpenAIGatewayService{cfg: rawChatCompletionsTestConfig(), httpUpstream: upstream}
+	account := adaptiveProtocolTestAccount(PlatformKimi, map[string]any{
+		APIProtocolChatCompletions: "http://chat.example",
+		APIProtocolAnthropic:       "http://anthropic.example",
+	})
+
+	_, err := svc.Forward(context.Background(), adaptiveProtocolTestContext("/v1/responses", body), account, body)
+	require.Error(t, err)
+	require.Equal(t, "http://chat.example/v1/chat/completions", upstream.lastReq.URL.String())
+	require.True(t, gjson.GetBytes(upstream.lastBody, "messages").IsArray())
+	require.False(t, gjson.GetBytes(upstream.lastBody, "input").Exists())
+}
+
+func TestAdaptiveProtocolRoutesDeepSeekResponsesToNativeResponses(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	body := []byte(`{"model":"deepseek-v4","input":"hello","store":true,"previous_response_id":"resp_old","stream":false}`)
+	upstream := &httpUpstreamRecorder{err: errors.New("stop after capture")}
+	svc := &OpenAIGatewayService{cfg: rawChatCompletionsTestConfig(), httpUpstream: upstream}
+	account := adaptiveProtocolTestAccount(PlatformDeepseek, map[string]any{
+		APIProtocolChatCompletions: "http://chat.example",
+		APIProtocolAnthropic:       "http://anthropic.example",
+		APIProtocolResponses:       "http://responses.example",
+	})
+
+	_, err := svc.Forward(context.Background(), adaptiveProtocolTestContext("/v1/responses", body), account, body)
+	require.Error(t, err)
+	require.Equal(t, "http://responses.example/responses", upstream.lastReq.URL.String())
+	require.False(t, gjson.GetBytes(upstream.lastBody, "store").Bool())
+	require.False(t, gjson.GetBytes(upstream.lastBody, "previous_response_id").Exists())
+}
+
+func TestAdaptiveProtocolConvertsDeepSeekResponsesCompactToChatCompletions(t *testing.T) {
+	gin.SetMode(gin.TestMode)
+	body := []byte(`{"model":"deepseek-v4","input":"hello","stream":false}`)
+	upstream := &httpUpstreamRecorder{err: errors.New("stop after capture")}
+	svc := &OpenAIGatewayService{cfg: rawChatCompletionsTestConfig(), httpUpstream: upstream}
+	account := adaptiveProtocolTestAccount(PlatformDeepseek, map[string]any{
+		APIProtocolChatCompletions: "http://chat.example",
+		APIProtocolAnthropic:       "http://anthropic.example",
+		APIProtocolResponses:       "http://responses.example",
+	})
+
+	_, err := svc.Forward(context.Background(), adaptiveProtocolTestContext("/v1/responses/compact", body), account, body)
+	require.Error(t, err)
+	require.Equal(t, "http://chat.example/v1/chat/completions", upstream.lastReq.URL.String())
+}

backend/internal/service/cn_providers_test.go

@@ -55,9 +55,9 @@ func TestCNMillisToRFC3339(t *testing.T) {
 	t.Parallel()
 	// 1700000000 秒 = 1700000000000 毫秒
 	want := time.UnixMilli(1700000000000).UTC().Format(time.RFC3339)
-	require.Equal(t, want, cnMillisToRFC3339(1700000000))      // 秒级
-	require.Equal(t, want, cnMillisToRFC3339(1700000000000))   // 毫秒级
-	require.Equal(t, "", cnMillisToRFC3339(0))                 // 非正
+	require.Equal(t, want, cnMillisToRFC3339(1700000000))    // 秒级
+	require.Equal(t, want, cnMillisToRFC3339(1700000000000)) // 毫秒级
+	require.Equal(t, "", cnMillisToRFC3339(0))               // 非正
 	require.Equal(t, "", cnMillisToRFC3339(-1))
 }
 
@@ -294,8 +294,8 @@ func TestEvaluateAccountSchedulingThreshold_KimiCodingPlan(t *testing.T) {
 	account := &Account{
 		Platform: PlatformKimi,
 		Extra: map[string]any{
-			"kimi_5h_used_percent": 90.0,
-			"kimi_5h_reset_at":     reset.Format(time.RFC3339),
+			"kimi_5h_used_percent":     90.0,
+			"kimi_5h_reset_at":         reset.Format(time.RFC3339),
 			"kimi_weekly_used_percent": 30.0,
 			"kimi_weekly_reset_at":     now.Add(7 * 24 * time.Hour).Format(time.RFC3339),
 		},
@@ -410,9 +410,9 @@ func TestGetOpenAIProtocolAPIKey_CNProviders(t *testing.T) {
 	t.Parallel()
 
 	kimi := &Account{
-		Platform:     PlatformKimi,
-		Type:         AccountTypeAPIKey,
-		Credentials:  map[string]any{"api_key": "sk-kimi"},
+		Platform:    PlatformKimi,
+		Type:        AccountTypeAPIKey,
+		Credentials: map[string]any{"api_key": "sk-kimi"},
 	}
 	require.Equal(t, "sk-kimi", kimi.GetOpenAIProtocolAPIKey())
 	require.False(t, kimi.IsOpenAIApiKey(), "IsOpenAIApiKey stays openai-only for scheduling gates")
@@ -486,12 +486,66 @@ func TestGetAPIProtocol(t *testing.T) {
 	require.Equal(t, APIProtocolAnthropic, mk(PlatformKimi, APIProtocolAnthropic).GetAPIProtocol())
 	require.Equal(t, APIProtocolAnthropic, mk(PlatformDeepseek, APIProtocolAnthropic).GetAPIProtocol())
 	require.Equal(t, APIProtocolResponses, mk(PlatformDeepseek, APIProtocolResponses).GetAPIProtocol())
+	require.Equal(t, APIProtocolAdaptive, mk(PlatformKimi, APIProtocolAdaptive).GetAPIProtocol())
+	require.Equal(t, APIProtocolAdaptive, mk(PlatformZhipu, APIProtocolAdaptive).GetAPIProtocol())
+	require.Equal(t, APIProtocolAdaptive, mk(PlatformDeepseek, APIProtocolAdaptive).GetAPIProtocol())
 	require.Equal(t, APIProtocolChatCompletions, mk(PlatformKimi, APIProtocolResponses).GetAPIProtocol(), "kimi 无 responses 端点")
 	require.Equal(t, APIProtocolChatCompletions, mk(PlatformZhipu, APIProtocolResponses).GetAPIProtocol(), "zhipu 无 responses 端点")
 	require.Equal(t, APIProtocolChatCompletions, mk(PlatformKimi, "bogus").GetAPIProtocol(), "非法值回退默认")
 	require.Equal(t, APIProtocolChatCompletions, (&Account{Platform: PlatformOpenAI, Type: AccountTypeAPIKey}).GetAPIProtocol(), "非 CN 供应商恒为默认")
 }
 
+func TestAdaptiveProtocolBaseURLs(t *testing.T) {
+	t.Parallel()
+
+	cases := []struct {
+		name          string
+		platform      string
+		mode          string
+		wantChat      string
+		wantAnthropic string
+		wantResponses string
+	}{
+		{"kimi payg", PlatformKimi, AccountModePayG, DefaultKimiPayGBaseURL, DefaultKimiPayGAnthropicBaseURL, DefaultKimiPayGBaseURL},
+		{"kimi coding", PlatformKimi, AccountModeCoding, DefaultKimiCodingBaseURL, DefaultKimiCodingAnthropicBaseURL, DefaultKimiCodingBaseURL},
+		{"zhipu payg", PlatformZhipu, AccountModePayG, DefaultZhipuPayGBaseURL, DefaultZhipuAnthropicBaseURL, DefaultZhipuPayGBaseURL},
+		{"zhipu coding", PlatformZhipu, AccountModeCoding, DefaultZhipuCodingBaseURL, DefaultZhipuAnthropicBaseURL, DefaultZhipuCodingBaseURL},
+		{"deepseek", PlatformDeepseek, AccountModePayG, DefaultDeepseekBaseURL, DefaultDeepseekAnthropicBaseURL, DefaultDeepseekBaseURL},
+	}
+
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			account := &Account{Platform: tc.platform, Type: AccountTypeAPIKey, Credentials: map[string]any{
+				"api_protocol": APIProtocolAdaptive,
+				"account_mode": tc.mode,
+			}}
+			require.Equal(t, tc.wantChat, account.GetCNProtocolBaseURL(APIProtocolChatCompletions))
+			require.Equal(t, tc.wantAnthropic, account.GetCNProtocolBaseURL(APIProtocolAnthropic))
+			require.Equal(t, tc.wantResponses, account.GetCNProtocolBaseURL(APIProtocolResponses))
+			require.Equal(t, tc.wantAnthropic, account.GetAnthropicProtocolBaseURL())
+		})
+	}
+}
+
+func TestAdaptiveProtocolBaseURLOverrides(t *testing.T) {
+	t.Parallel()
+
+	account := &Account{Platform: PlatformDeepseek, Type: AccountTypeAPIKey, Credentials: map[string]any{
+		"api_protocol": APIProtocolAdaptive,
+		"base_url":     "https://legacy-chat.example.com",
+		"api_base_urls": map[string]any{
+			APIProtocolChatCompletions: "https://chat.example.com",
+			APIProtocolAnthropic:       "https://anthropic.example.com",
+			APIProtocolResponses:       "https://responses.example.com",
+		},
+	}}
+
+	require.Equal(t, "https://chat.example.com", account.GetOpenAIBaseURL())
+	require.Equal(t, "https://chat.example.com", account.GetCNProtocolBaseURL(APIProtocolChatCompletions))
+	require.Equal(t, "https://anthropic.example.com", account.GetAnthropicProtocolBaseURL())
+	require.Equal(t, "https://responses.example.com", account.GetCNProtocolBaseURL(APIProtocolResponses))
+}
+
 // TestAnthropicProtocolBaseURL 验证 Anthropic 协议默认端点与协议感知的
 // OpenAI 格式 base 回退。
 func TestAnthropicProtocolBaseURL(t *testing.T) {
@@ -600,6 +654,14 @@ func TestNormalizeDeepSeekResponsesRequestBody(t *testing.T) {
 	require.False(t, gjson.GetBytes(normalized, "previous_response_id").Exists())
 	require.Equal(t, "deepseek-v4-pro", gjson.GetBytes(normalized, "model").String())
 
+	deepseekAdaptive := &Account{
+		Platform: PlatformDeepseek, Type: AccountTypeAPIKey,
+		Credentials: map[string]any{"api_protocol": APIProtocolAdaptive},
+	}
+	adaptiveNormalized := normalizeDeepSeekResponsesRequestBody(deepseekAdaptive, body)
+	require.False(t, gjson.GetBytes(adaptiveNormalized, "store").Bool())
+	require.False(t, gjson.GetBytes(adaptiveNormalized, "previous_response_id").Exists())
+
 	// 非 responses 协议（deepseek CC 账号）原样返回
 	deepseekCC := &Account{Platform: PlatformDeepseek, Type: AccountTypeAPIKey}
 	require.Equal(t, string(body), string(normalizeDeepSeekResponsesRequestBody(deepseekCC, body)))

backend/internal/service/domain_constants.go

@@ -64,6 +64,7 @@ const (
 	APIProtocolChatCompletions = domain.APIProtocolChatCompletions
 	APIProtocolAnthropic       = domain.APIProtocolAnthropic
 	APIProtocolResponses       = domain.APIProtocolResponses
+	APIProtocolAdaptive        = domain.APIProtocolAdaptive
 )
 
 // 国产 OpenAI 兼容供应商各模式的默认 base_url。

backend/internal/service/openai_apikey_responses_probe.go

@@ -127,7 +127,8 @@ func (s *AccountTestService) ProbeOpenAIAPIKeyResponsesSupport(ctx context.Conte
 		// 不存在 /v1/responses 端点。直接落标 false 走 Chat Completions 直转，跳过网络探测。
 		// 例外：deepseek 的 responses 协议账号（api_protocol=responses）使用官方原生
 		// /responses 端点，落标 force_responses 强制走 Responses 路径。
-		if account.GetAPIProtocol() == APIProtocolResponses {
+		if account.GetAPIProtocol() == APIProtocolResponses ||
+			(account.Platform == PlatformDeepseek && account.IsAdaptiveAPIProtocol()) {
 			_ = s.accountRepo.UpdateExtra(ctx, account.ID, map[string]any{
 				openai_compat.ExtraKeyResponsesMode:      string(openai_compat.ResponsesSupportModeForceResponses),
 				openai_compat.ExtraKeyResponsesSupported: true,

backend/internal/service/openai_apikey_responses_probe_test.go

@@ -49,6 +49,43 @@ func TestProbeOpenAIAPIKeyResponsesSupportUsesCodexProbeHeaders(t *testing.T) {
 	require.Equal(t, true, updates[openai_compat.ExtraKeyResponsesSupported])
 }
 
+func TestProbeOpenAIAPIKeyResponsesSupportAdaptiveCNProviders(t *testing.T) {
+	tests := []struct {
+		name          string
+		id            int64
+		platform      string
+		wantSupport   bool
+		wantForceMode bool
+	}{
+		{name: "deepseek adaptive supports responses", id: 201, platform: PlatformDeepseek, wantSupport: true, wantForceMode: true},
+		{name: "kimi adaptive falls back to chat", id: 202, platform: PlatformKimi, wantSupport: false},
+		{name: "zhipu adaptive falls back to chat", id: 203, platform: PlatformZhipu, wantSupport: false},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			updateCalls := make(chan map[string]any, 1)
+			account := Account{
+				ID: tc.id, Platform: tc.platform, Type: AccountTypeAPIKey,
+				Credentials: map[string]any{"api_key": "sk-test", "api_protocol": APIProtocolAdaptive},
+			}
+			repo := &snapshotUpdateAccountRepo{
+				stubOpenAIAccountRepo: stubOpenAIAccountRepo{accounts: []Account{account}},
+				updateExtraCalls:      updateCalls,
+			}
+			svc := &AccountTestService{accountRepo: repo}
+
+			svc.ProbeOpenAIAPIKeyResponsesSupport(context.Background(), account.ID)
+
+			updates := <-updateCalls
+			require.Equal(t, tc.wantSupport, updates[openai_compat.ExtraKeyResponsesSupported])
+			if tc.wantForceMode {
+				require.Equal(t, string(openai_compat.ResponsesSupportModeForceResponses), updates[openai_compat.ExtraKeyResponsesMode])
+			}
+		})
+	}
+}
+
 func TestDecideResponsesProbeSupport(t *testing.T) {
 	fnCall := []byte(`{"output":[{"type":"reasoning"},{"type":"function_call","name":"probe_ping"}]}`)
 	reasoningOnly := []byte(`{"output":[{"type":"reasoning"}]}`)

backend/internal/service/openai_gateway_chat_completions.go

@@ -88,6 +88,11 @@ func (s *OpenAIGatewayService) ForwardAsChatCompletions(
 		return s.forwardAsRawChatCompletions(ctx, c, account, body, defaultMappedModel)
 	}
 
+	// 自适应账号的 Chat Completions 入站始终使用供应商原生 CC 端点。
+	if account.IsAdaptiveAPIProtocol() {
+		return s.forwardAsRawChatCompletions(ctx, c, account, body, defaultMappedModel)
+	}
+
 	// 入口分流（国产供应商 Anthropic 协议）：上游为供应商原生 Anthropic 端点，
 	// CC 入站请求经 CC→Responses→Anthropic 转换链直通该端点。必须先于
 	// ShouldUseResponsesAPI 分流：该类账号经 probe 落标

backend/internal/service/openai_gateway_forward.go

@@ -115,6 +115,10 @@ func (s *OpenAIGatewayService) Forward(ctx context.Context, c *gin.Context, acco
 	if account.IsAnthropicProtocol() {
 		return s.forwardResponsesViaNativeAnthropic(ctx, c, account, body, reqModel)
 	}
+	if account.IsAdaptiveAPIProtocol() &&
+		(account.Platform != PlatformDeepseek || isOpenAIResponsesCompactPath(c)) {
+		return s.forwardResponsesViaRawChatCompletions(ctx, c, account, body)
+	}
 
 	if shouldForwardOpenAIResponsesViaRawChatCompletions(account) {
 		return s.forwardResponsesViaRawChatCompletions(ctx, c, account, body)
@@ -1055,6 +1059,9 @@ func (s *OpenAIGatewayService) buildUpstreamRequest(ctx context.Context, c *gin.
 	case AccountTypeAPIKey:
 		// API Key accounts use Platform API or custom base URL
 		baseURL := account.GetOpenAIBaseURL()
+		if account.Platform == PlatformDeepseek && account.IsAdaptiveAPIProtocol() {
+			baseURL = account.GetCNProtocolBaseURL(APIProtocolResponses)
+		}
 		if baseURL == "" {
 			targetURL = openaiPlatformAPIURL
 		} else {

backend/internal/service/openai_gateway_messages.go

@@ -41,7 +41,7 @@ func (s *OpenAIGatewayService) ForwardAsAnthropic(
 	// thinking / tool_use / cache 语义，适配 Claude Code 等原生客户端。
 	// 必须先于 ShouldUseResponsesAPI 分流：Anthropic 协议账号经 probe 落标
 	// openai_responses_supported=false，会先命中下方的 CC 直转分支。
-	if account.IsAnthropicProtocol() {
+	if account.IsAnthropicProtocol() || account.IsAdaptiveAPIProtocol() {
 		return s.forwardAnthropicViaNativeAnthropicEndpoint(ctx, c, account, body, defaultMappedModel)
 	}
 

backend/internal/service/openai_gateway_request_body.go

@@ -59,7 +59,8 @@ func buildOpenAIResponsesURLForPlatform(platform string, base string) string {
 // 强制 store=false 并清除 previous_response_id（官方 /responses 不支持服务端
 // 状态存储，携带这些字段会被拒绝）。非 deepseek responses 协议账号原样返回。
 func normalizeDeepSeekResponsesRequestBody(account *Account, body []byte) []byte {
-	if account == nil || account.Platform != PlatformDeepseek || account.GetAPIProtocol() != APIProtocolResponses {
+	if account == nil || account.Platform != PlatformDeepseek ||
+		(account.GetAPIProtocol() != APIProtocolResponses && !account.IsAdaptiveAPIProtocol()) {
 		return body
 	}
 	normalized, err := sjson.SetBytes(body, "store", false)

frontend/src/components/account/CnBaseUrlPresets.vue

@@ -30,7 +30,7 @@ const props = defineProps<{
   /** 当前已选账号类型，用于过滤和高亮匹配的预设 */
   mode?: 'payg' | 'coding'
   /** 当前已选 API 协议，用于过滤和高亮匹配的预设 */
-  protocol?: 'chat_completions' | 'anthropic' | 'responses'
+  protocol?: 'adaptive' | 'chat_completions' | 'anthropic' | 'responses'
   /** 当前输入框中的 base url，用于高亮完全匹配项 */
   currentUrl?: string
 }>()

frontend/src/components/account/CreateAccountModal.vue

@@ -537,7 +537,7 @@
                   : 'bg-gray-100 text-gray-500 dark:bg-dark-600 dark:text-gray-400'
               ]"
             >
-              <Icon :name="opt.value === 'anthropic' ? 'sparkles' : opt.value === 'responses' ? 'terminal' : 'chat'" size="sm" />
+              <Icon :name="opt.value === 'adaptive' ? 'swap' : opt.value === 'anthropic' ? 'sparkles' : opt.value === 'responses' ? 'terminal' : 'chat'" size="sm" />
             </div>
             <div>
               <span class="block text-sm font-medium text-gray-900 dark:text-white">{{ t(`admin.accounts.cnProviders.apiProtocol.${opt.labelKey}`) }}</span>
@@ -1250,7 +1250,7 @@
 
       <!-- API Key input (only for apikey type, excluding Antigravity which has its own fields) -->
       <div v-if="form.type === 'apikey' && form.platform !== 'antigravity'" class="space-y-4">
-        <div>
+        <div v-if="!isCNPlatform || apiProtocol !== 'adaptive'">
           <label class="input-label">{{ t('admin.accounts.baseUrl') }}</label>
           <input
             v-model="apiKeyBaseUrl"
@@ -1274,6 +1274,20 @@
             @select="onCnPresetSelect"
           />
         </div>
+        <div v-else>
+          <label class="input-label">{{ t('admin.accounts.cnProviders.apiProtocol.endpoints') }}</label>
+          <div class="mt-2 space-y-3">
+            <div v-for="item in cnAdaptiveProtocolOptions" :key="item.value">
+              <label class="mb-1 block text-xs font-medium text-gray-600 dark:text-gray-400">
+                {{ t(`admin.accounts.cnProviders.apiProtocol.${item.labelKey}`) }}
+              </label>
+              <input v-model="adaptiveBaseUrls[item.value]" type="text" class="input" />
+            </div>
+          </div>
+          <p v-if="form.platform !== 'deepseek'" class="input-hint">
+            {{ t('admin.accounts.cnProviders.apiProtocol.responsesFallbackDesc') }}
+          </p>
+        </div>
         <div>
           <label class="input-label">{{ t('admin.accounts.apiKeyRequired') }}</label>
           <input
@@ -3746,11 +3760,13 @@ import {
   applyAntigravityProjectID,
   applyHeaderOverride,
   applyInterceptWarmup,
+  defaultCNAdaptiveBaseUrls,
   defaultCNBaseUrl,
   isHeaderOverrideCapable,
   validateHeaderOverrideRows,
   type CnAccountMode,
   type CnApiProtocol,
+  type CnNativeApiProtocol,
   type HeaderOverrideRow
 } from '@/components/account/credentialsBuilder'
 import { formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
@@ -3932,7 +3948,12 @@ const upstreamBillingAutoProbeEnabled = ref(true)
 const accountMode = ref<CnAccountMode>('payg')
 // API 协议决定转发端点与格式：cc=现有转换链，anthropic=原生直通（Claude Code），
 // responses=deepseek 原生 Responses 端点（Codex）。与账号类型正交。
-const apiProtocol = ref<CnApiProtocol>('chat_completions')
+const apiProtocol = ref<CnApiProtocol>('adaptive')
+const adaptiveBaseUrls = ref<Record<CnNativeApiProtocol, string>>({
+  chat_completions: '',
+  anthropic: '',
+  responses: ''
+})
 const isCNPlatform = computed(
   () => form.platform === 'kimi' || form.platform === 'zhipu' || form.platform === 'deepseek'
 )
@@ -3947,6 +3968,7 @@ const cnPresetPlatform = computed<'kimi' | 'zhipu' | 'deepseek'>(() => {
 // 当前平台可选的协议档（responses 仅 deepseek）。
 const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: string }>>(() => {
   const opts: Array<{ value: CnApiProtocol; labelKey: string }> = [
+    { value: 'adaptive', labelKey: 'adaptive' },
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
@@ -3955,6 +3977,18 @@ const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: strin
   }
   return opts
 })
+const cnAdaptiveProtocolOptions = computed<Array<{ value: CnNativeApiProtocol; labelKey: string }>>(() => {
+  const opts: Array<{ value: CnNativeApiProtocol; labelKey: string }> = [
+    { value: 'chat_completions', labelKey: 'chatCompletions' },
+    { value: 'anthropic', labelKey: 'anthropic' }
+  ]
+  if (form.platform === 'deepseek') opts.push({ value: 'responses', labelKey: 'responses' })
+  return opts
+})
+
+function resetAdaptiveBaseUrls(platform: 'kimi' | 'zhipu' | 'deepseek', mode: CnAccountMode) {
+  adaptiveBaseUrls.value = defaultCNAdaptiveBaseUrls(platform, mode)
+}
 // 当前选中平台的品牌色（选中卡片描边 / 图标底色），与 platformColors 取色一致。
 const cnAccentActiveClass = computed(() => {
   switch (form.platform) {
@@ -3981,24 +4015,44 @@ const cnAccentIconClass = computed(() => {
   }
 })
 // 切换国产供应商平台：强制 apikey 类型，deepseek 无 coding 套餐故锁定 payg，
-// 协议回落 chat_completions，并把 base url 重置为该平台默认端点。
+// 协议回落 adaptive，并把 base url 重置为该平台默认端点。
 function selectCNPlatform(platform: 'kimi' | 'zhipu' | 'deepseek') {
   form.platform = platform
   form.type = 'apikey'
   accountCategory.value = 'apikey'
-  apiProtocol.value = 'chat_completions'
+  apiProtocol.value = 'adaptive'
   if (platform === 'deepseek') {
     accountMode.value = 'payg'
   }
   apiKeyBaseUrl.value = defaultCNBaseUrl(platform, accountMode.value, apiProtocol.value)
+  resetAdaptiveBaseUrls(platform, accountMode.value)
 }
 // 账号类型 / 协议变更时同步默认 base url。
-watch(accountMode, (mode) => {
+watch(accountMode, (mode, previousMode) => {
   if (!isCNPlatform.value) return
+  if (apiProtocol.value === 'adaptive') {
+    const previousDefaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, previousMode)
+    const nextDefaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, mode)
+    for (const item of cnAdaptiveProtocolOptions.value) {
+      if (!adaptiveBaseUrls.value[item.value] || adaptiveBaseUrls.value[item.value] === previousDefaults[item.value]) {
+        adaptiveBaseUrls.value[item.value] = nextDefaults[item.value]
+      }
+    }
+    apiKeyBaseUrl.value = adaptiveBaseUrls.value.chat_completions
+    return
+  }
   apiKeyBaseUrl.value = defaultCNBaseUrl(form.platform, mode, apiProtocol.value)
 })
 watch(apiProtocol, (protocol) => {
   if (!isCNPlatform.value) return
+  if (protocol === 'adaptive') {
+    const defaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, accountMode.value)
+    for (const item of cnAdaptiveProtocolOptions.value) {
+      if (!adaptiveBaseUrls.value[item.value]) adaptiveBaseUrls.value[item.value] = defaults[item.value]
+    }
+    apiKeyBaseUrl.value = adaptiveBaseUrls.value.chat_completions
+    return
+  }
   apiKeyBaseUrl.value = defaultCNBaseUrl(form.platform, accountMode.value, protocol)
 })
 // 点击预设端点：同时回填 base url、账号类型与协议。
@@ -4956,7 +5010,8 @@ const resetForm = () => {
   accountCategory.value = 'oauth-based'
   addMethod.value = 'oauth'
   accountMode.value = 'payg'
-  apiProtocol.value = 'chat_completions'
+  apiProtocol.value = 'adaptive'
+  adaptiveBaseUrls.value = { chat_completions: '', anthropic: '', responses: '' }
   apiKeyBaseUrl.value = 'https://api.anthropic.com'
   apiKeyValue.value = ''
   upstreamBillingAutoProbeEnabled.value = true
@@ -5425,10 +5480,19 @@ const handleSubmit = async () => {
   if (form.platform === 'kimi' || form.platform === 'zhipu' || form.platform === 'deepseek') {
     credentials.account_mode = accountMode.value
     credentials.api_protocol = apiProtocol.value
+    if (apiProtocol.value === 'adaptive') {
+      const defaults = defaultCNAdaptiveBaseUrls(form.platform, accountMode.value)
+      const protocolBaseUrls: Record<string, string> = {}
+      for (const item of cnAdaptiveProtocolOptions.value) {
+        protocolBaseUrls[item.value] = (adaptiveBaseUrls.value[item.value] || defaults[item.value]).trim()
+      }
+      credentials.api_base_urls = protocolBaseUrls
+      credentials.base_url = protocolBaseUrls.chat_completions
+    }
     const resolvedCNBase = (
       apiKeyBaseUrl.value.trim() || defaultCNBaseUrl(form.platform, accountMode.value, apiProtocol.value)
     ).trim()
-    if (resolvedCNBase) {
+    if (apiProtocol.value !== 'adaptive' && resolvedCNBase) {
       credentials.base_url = resolvedCNBase
     }
   }

frontend/src/components/account/EditAccountModal.vue

@@ -28,7 +28,7 @@
 
       <!-- API Key fields (only for apikey type) -->
       <div v-if="account.type === 'apikey'" class="space-y-4">
-        <div>
+        <div v-if="!isCNApiKeyAccount || editApiProtocol !== 'adaptive'">
           <label class="input-label">{{ t('admin.accounts.baseUrl') }}</label>
           <input
             v-model="editBaseUrl"
@@ -62,6 +62,20 @@
             @select="onCnPresetSelect"
           />
         </div>
+        <div v-else>
+          <label class="input-label">{{ t('admin.accounts.cnProviders.apiProtocol.endpoints') }}</label>
+          <div class="mt-2 space-y-3">
+            <div v-for="item in editAdaptiveProtocolOptions" :key="item.value">
+              <label class="mb-1 block text-xs font-medium text-gray-600 dark:text-gray-400">
+                {{ t(`admin.accounts.cnProviders.apiProtocol.${item.labelKey}`) }}
+              </label>
+              <input v-model="editAdaptiveBaseUrls[item.value]" type="text" class="input" />
+            </div>
+          </div>
+          <p v-if="account.platform !== 'deepseek'" class="input-hint">
+            {{ t('admin.accounts.cnProviders.apiProtocol.responsesFallbackDesc') }}
+          </p>
+        </div>
         <!-- Account Mode Selection (CN providers) -->
         <div v-if="isCNApiKeyAccount">
           <label class="input-label">{{ t('admin.accounts.cnProviders.accountMode.title') }}</label>
@@ -2802,11 +2816,13 @@ import {
   isHeaderOverrideCapable,
   splitHeaderOverridesObject,
   validateHeaderOverrideRows,
+  defaultCNAdaptiveBaseUrls,
   defaultCNBaseUrl,
   HEADER_OVERRIDE_ENABLED_CREDENTIAL_KEY,
   HEADER_OVERRIDES_CREDENTIAL_KEY,
   type CnAccountMode,
   type CnApiProtocol,
+  type CnNativeApiProtocol,
   type HeaderOverrideRow
 } from '@/components/account/credentialsBuilder'
 import { formatDateTime, formatDateTimeLocalInput, parseDateTimeLocalInput } from '@/utils/format'
@@ -2909,8 +2925,13 @@ const cnPresetPlatform = computed<'kimi' | 'zhipu' | 'deepseek'>(() => {
   }
   return 'kimi'
 })
-const editApiProtocol = ref<CnApiProtocol>('chat_completions')
+const editApiProtocol = ref<CnApiProtocol>('adaptive')
 const editAccountMode = ref<CnAccountMode>('payg')
+const editAdaptiveBaseUrls = ref<Record<CnNativeApiProtocol, string>>({
+  chat_completions: '',
+  anthropic: '',
+  responses: ''
+})
 // 回填窗口标志：syncFormFromAccount 会同步改写 editAccountMode / editApiProtocol，
 // 而 watcher（pre-flush）在同步代码执行完之后才触发——若不抑制，会把刚恢复的
 // 存储版 base_url（可能是用户自定义/中转地址）覆盖为官方预设并在下次保存时持久化。
@@ -2930,6 +2951,7 @@ const cnAccountModeOptions = computed<Array<{ value: CnAccountMode; labelKey: 'p
 )
 const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: string }>>(() => {
   const opts: Array<{ value: CnApiProtocol; labelKey: string }> = [
+    { value: 'adaptive', labelKey: 'adaptive' },
     { value: 'chat_completions', labelKey: 'chatCompletions' },
     { value: 'anthropic', labelKey: 'anthropic' }
   ]
@@ -2938,11 +2960,35 @@ const cnProtocolOptions = computed<Array<{ value: CnApiProtocol; labelKey: strin
   }
   return opts
 })
-watch(editApiProtocol, (protocol) => {
+const editAdaptiveProtocolOptions = computed<Array<{ value: CnNativeApiProtocol; labelKey: string }>>(() => {
+  const opts: Array<{ value: CnNativeApiProtocol; labelKey: string }> = [
+    { value: 'chat_completions', labelKey: 'chatCompletions' },
+    { value: 'anthropic', labelKey: 'anthropic' }
+  ]
+  if (props.account?.platform === 'deepseek') opts.push({ value: 'responses', labelKey: 'responses' })
+  return opts
+})
+watch(editApiProtocol, (protocol, previousProtocol) => {
   if (!isCNApiKeyAccount.value || syncingForm.value) return
+  if (protocol === 'adaptive') {
+    const defaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, editAccountMode.value)
+    for (const item of editAdaptiveProtocolOptions.value) {
+      if (!editAdaptiveBaseUrls.value[item.value]) editAdaptiveBaseUrls.value[item.value] = defaults[item.value]
+    }
+    if (previousProtocol !== 'adaptive' && editBaseUrl.value.trim()) {
+      editAdaptiveBaseUrls.value[previousProtocol] = editBaseUrl.value.trim()
+    }
+    editBaseUrl.value = editAdaptiveBaseUrls.value.chat_completions
+    return
+  }
+  if (previousProtocol === 'adaptive') {
+    editBaseUrl.value = editAdaptiveBaseUrls.value[protocol] ||
+      defaultCNBaseUrl(props.account!.platform, editAccountMode.value, protocol)
+    return
+  }
   editBaseUrl.value = defaultCNBaseUrl(props.account!.platform, editAccountMode.value, protocol)
 })
-watch(editAccountMode, (mode) => {
+watch(editAccountMode, (mode, previousMode) => {
   if (!isCNApiKeyAccount.value || syncingForm.value) return
   // deepseek 无 coding 套餐：防御性回退（UI 已隐藏该选项）。
   const effectiveMode = props.account!.platform === 'deepseek' && mode === 'coding' ? 'payg' : mode
@@ -2950,6 +2996,17 @@ watch(editAccountMode, (mode) => {
     editAccountMode.value = effectiveMode
     return
   }
+  if (editApiProtocol.value === 'adaptive') {
+    const previousDefaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, previousMode)
+    const nextDefaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, mode)
+    for (const item of editAdaptiveProtocolOptions.value) {
+      if (!editAdaptiveBaseUrls.value[item.value] || editAdaptiveBaseUrls.value[item.value] === previousDefaults[item.value]) {
+        editAdaptiveBaseUrls.value[item.value] = nextDefaults[item.value]
+      }
+    }
+    editBaseUrl.value = editAdaptiveBaseUrls.value.chat_completions
+    return
+  }
   editBaseUrl.value = defaultCNBaseUrl(props.account!.platform, mode, editApiProtocol.value)
 })
 const cnProtocolDescKey = computed(
@@ -3774,12 +3831,27 @@ const syncFormFromAccount = (newAccount: Account | null) => {
       editAccountMode.value = credentials.account_mode === 'coding' ? 'coding' : 'payg'
       const storedProtocol = credentials.api_protocol
       editApiProtocol.value =
-        storedProtocol === 'anthropic' || storedProtocol === 'responses' ? storedProtocol : 'chat_completions'
+        storedProtocol === 'adaptive' || storedProtocol === 'anthropic' || storedProtocol === 'responses'
+          ? storedProtocol
+          : 'adaptive'
       if (newAccount.platform !== 'deepseek' && editApiProtocol.value === 'responses') {
         editApiProtocol.value = 'chat_completions'
       }
+      const adaptiveDefaults = defaultCNAdaptiveBaseUrls(newAccount.platform, editAccountMode.value)
+      const storedBaseUrls = (credentials.api_base_urls as Record<string, unknown> | undefined) || {}
+      editAdaptiveBaseUrls.value = {
+        chat_completions: typeof storedBaseUrls.chat_completions === 'string'
+          ? storedBaseUrls.chat_completions
+          : adaptiveDefaults.chat_completions,
+        anthropic: typeof storedBaseUrls.anthropic === 'string'
+          ? storedBaseUrls.anthropic
+          : adaptiveDefaults.anthropic,
+        responses: typeof storedBaseUrls.responses === 'string'
+          ? storedBaseUrls.responses
+          : adaptiveDefaults.responses
+      }
     }
-    const platformDefaultUrl =
+  const platformDefaultUrl =
       newAccount.platform === 'openai'
         ? 'https://api.openai.com'
         : newAccount.platform === 'gemini'
@@ -3791,7 +3863,9 @@ const syncFormFromAccount = (newAccount: Account | null) => {
                 newAccount.platform === 'deepseek'
               ? defaultCNBaseUrl(newAccount.platform, editAccountMode.value, editApiProtocol.value)
               : 'https://api.anthropic.com'
-    editBaseUrl.value = (credentials.base_url as string) || platformDefaultUrl
+  editBaseUrl.value = isCNApiKeyAccount.value && editApiProtocol.value === 'adaptive'
+    ? editAdaptiveBaseUrls.value.chat_completions
+    : (credentials.base_url as string) || platformDefaultUrl
 
     // Load model mappings and detect mode
     loadModelRestrictionFromMapping(credentials.model_mapping as Record<string, unknown> | undefined)
@@ -4463,6 +4537,17 @@ const handleSubmit = async () => {
       if (isCNApiKeyAccount.value) {
         newCredentials.account_mode = editAccountMode.value
         newCredentials.api_protocol = editApiProtocol.value
+        if (editApiProtocol.value === 'adaptive') {
+          const defaults = defaultCNAdaptiveBaseUrls(cnPresetPlatform.value, editAccountMode.value)
+          const protocolBaseUrls: Record<string, string> = {}
+          for (const item of editAdaptiveProtocolOptions.value) {
+            protocolBaseUrls[item.value] = (editAdaptiveBaseUrls.value[item.value] || defaults[item.value]).trim()
+          }
+          newCredentials.api_base_urls = protocolBaseUrls
+          newCredentials.base_url = protocolBaseUrls.chat_completions
+        } else {
+          delete newCredentials.api_base_urls
+        }
       }
 
       // Handle API key

frontend/src/components/account/__tests__/CreateAccountModal.spec.ts

@@ -269,6 +269,28 @@ describe('CreateAccountModal OpenAI long-context billing', () => {
     expect(probeUpstreamBillingMock).not.toHaveBeenCalled()
   })
 
+  it('submits adaptive Kimi protocol endpoints', async () => {
+    const wrapper = mountModal()
+    await selectButtonByText(wrapper, 'Kimi')
+    await selectButtonByText(wrapper, 'admin.accounts.cnProviders.apiProtocol.adaptive')
+    await wrapper.get('form#create-account-form input[type="text"]').setValue('Kimi adaptive')
+    await wrapper.get('form#create-account-form input[type="password"]').setValue('sk-kimi')
+
+    await wrapper.get('form#create-account-form').trigger('submit.prevent')
+    await flushPromises()
+
+    expect(createAccountMock).toHaveBeenCalledTimes(1)
+    expect(createAccountMock.mock.calls[0]?.[0]?.credentials).toMatchObject({
+      account_mode: 'payg',
+      api_protocol: 'adaptive',
+      base_url: 'https://api.moonshot.cn/v1',
+      api_base_urls: {
+        chat_completions: 'https://api.moonshot.cn/v1',
+        anthropic: 'https://api.moonshot.cn/anthropic'
+      }
+    })
+  })
+
   it('exposes Agent Identity in the OpenAI authorization methods', async () => {
     const wrapper = mountModal()
     await selectButtonByText(wrapper, 'OpenAI')

frontend/src/components/account/__tests__/EditAccountModal.spec.ts

@@ -343,6 +343,37 @@ describe('EditAccountModal', () => {
     })
   })
 
+  it('preserves adaptive GLM endpoints on submit', async () => {
+    const account = buildAccount()
+    account.platform = 'zhipu'
+    account.credentials = {
+      api_key: 'sk-glm',
+      account_mode: 'coding',
+      api_protocol: 'adaptive',
+      base_url: 'https://open.bigmodel.cn/api/coding/paas/v4',
+      api_base_urls: {
+        chat_completions: 'https://open.bigmodel.cn/api/coding/paas/v4',
+        anthropic: 'https://open.bigmodel.cn/api/anthropic'
+      }
+    }
+    updateAccountMock.mockReset().mockResolvedValue(account)
+    checkMixedChannelRiskMock.mockReset().mockResolvedValue({ has_risk: false })
+
+    const wrapper = mountModal(account)
+    await wrapper.get('form#edit-account-form').trigger('submit.prevent')
+
+    expect(updateAccountMock).toHaveBeenCalledTimes(1)
+    expect(updateAccountMock.mock.calls[0]?.[1]?.credentials).toMatchObject({
+      account_mode: 'coding',
+      api_protocol: 'adaptive',
+      base_url: 'https://open.bigmodel.cn/api/coding/paas/v4',
+      api_base_urls: {
+        chat_completions: 'https://open.bigmodel.cn/api/coding/paas/v4',
+        anthropic: 'https://open.bigmodel.cn/api/anthropic'
+      }
+    })
+  })
+
   it('preserves model mappings when editing the whitelist', async () => {
     const account = buildAccount()
     account.credentials.model_mapping = {

frontend/src/components/account/__tests__/credentialsBuilder.cnAdaptive.spec.ts

@@ -0,0 +1,39 @@
+import { describe, expect, it } from 'vitest'
+
+import { defaultCNAdaptiveBaseUrls } from '../credentialsBuilder'
+
+describe('defaultCNAdaptiveBaseUrls', () => {
+  it('resolves Kimi endpoints by account mode', () => {
+    expect(defaultCNAdaptiveBaseUrls('kimi', 'payg')).toEqual({
+      chat_completions: 'https://api.moonshot.cn/v1',
+      anthropic: 'https://api.moonshot.cn/anthropic',
+      responses: ''
+    })
+    expect(defaultCNAdaptiveBaseUrls('kimi', 'coding')).toEqual({
+      chat_completions: 'https://api.kimi.com/coding/v1',
+      anthropic: 'https://api.kimi.com/coding',
+      responses: ''
+    })
+  })
+
+  it('resolves GLM endpoints by account mode', () => {
+    expect(defaultCNAdaptiveBaseUrls('zhipu', 'payg')).toEqual({
+      chat_completions: 'https://open.bigmodel.cn/api/paas/v4',
+      anthropic: 'https://open.bigmodel.cn/api/anthropic',
+      responses: ''
+    })
+    expect(defaultCNAdaptiveBaseUrls('zhipu', 'coding')).toEqual({
+      chat_completions: 'https://open.bigmodel.cn/api/coding/paas/v4',
+      anthropic: 'https://open.bigmodel.cn/api/anthropic',
+      responses: ''
+    })
+  })
+
+  it('includes all three native DeepSeek endpoints', () => {
+    expect(defaultCNAdaptiveBaseUrls('deepseek', 'payg')).toEqual({
+      chat_completions: 'https://api.deepseek.com',
+      anthropic: 'https://api.deepseek.com/anthropic',
+      responses: 'https://api.deepseek.com'
+    })
+  })
+})

frontend/src/components/account/credentialsBuilder.ts

@@ -256,8 +256,9 @@ export const GROK_BASE_URL_PRESETS: GrokBaseUrlPreset[] = [
 
 export type CnAccountMode = 'payg' | 'coding'
 
-/** 仅 deepseek 支持 responses 协议（官方原生 /responses 端点，适配 Codex）。 */
-export type CnApiProtocol = 'chat_completions' | 'anthropic' | 'responses'
+/** 仅 deepseek 支持原生 responses；adaptive 会按入站协议选择原生端点。 */
+export type CnApiProtocol = 'adaptive' | 'chat_completions' | 'anthropic' | 'responses'
+export type CnNativeApiProtocol = Exclude<CnApiProtocol, 'adaptive'>
 
 export interface CnBaseUrlPreset {
   mode: CnAccountMode
@@ -321,6 +322,18 @@ export function defaultCNBaseUrl(
   }
 }
 
+/** 返回自适应模式下需要配置的原生协议及其默认端点。 */
+export function defaultCNAdaptiveBaseUrls(
+  platform: 'kimi' | 'zhipu' | 'deepseek',
+  mode: CnAccountMode
+): Record<CnNativeApiProtocol, string> {
+  return {
+    chat_completions: defaultCNBaseUrl(platform, mode, 'chat_completions'),
+    anthropic: defaultCNBaseUrl(platform, mode, 'anthropic'),
+    responses: platform === 'deepseek' ? defaultCNBaseUrl(platform, mode, 'responses') : ''
+  }
+}
+
 // ===== 国产供应商用量单元格可见性（单一事实源） =====
 // CNProviderQuotaCell / CNProviderBalanceCell 与 AccountUsageCell 的占位符判定
 // 共用，避免多处复制条件后一处改另一处漏改。

frontend/src/i18n/locales/en/admin/accounts.ts

@@ -118,6 +118,10 @@ export default {
         },
         apiProtocol: {
           title: 'API Protocol',
+          adaptive: 'Adaptive',
+          adaptiveDesc: 'Uses the matching native provider endpoint for each inbound protocol, converting only when unavailable.',
+          endpoints: 'Protocol endpoints',
+          responsesFallbackDesc: 'Responses requests are converted to Chat Completions because this provider has no native Responses endpoint.',
           chatCompletions: 'Chat Completions',
           chatCompletionsDesc: 'Standard OpenAI-compatible endpoint; requests in other formats are converted.',
           anthropic: 'Anthropic',

frontend/src/i18n/locales/zh/admin/accounts.ts

@@ -321,6 +321,10 @@ export default {
         },
         apiProtocol: {
           title: 'API 协议',
+          adaptive: '自适应',
+          adaptiveDesc: '按入站协议优先使用供应商原生端点，仅在没有对应端点时转换。',
+          endpoints: '协议端点',
+          responsesFallbackDesc: '该供应商没有原生 Responses 端点，Responses 请求将转换为 Chat Completions。',
           chatCompletions: 'Chat Completions',
           chatCompletionsDesc: '标准 OpenAI 兼容端点，其他格式请求将被转换。',
           anthropic: 'Anthropic',