feat: add GLM Coding Plan toggle for Z AI provider

- Add zaiUseGlmCodingPlan field to provider settings schema
- Update ZAiHandler to route requests through coding plan endpoints when enabled
- Add UI toggle in Z AI settings with appropriate labels and descriptions
- Add comprehensive tests for the new functionality
- Add English translation keys for the new toggle

This allows users with a Z AI GLM Coding Plan to use their plan instead of API credits

Author: roomote

packages/types/src/provider-settings.ts

@@ -311,6 +311,7 @@ const sambaNovaSchema = apiModelIdProviderModelSchema.extend({
 const zaiSchema = apiModelIdProviderModelSchema.extend({
 	zaiApiKey: z.string().optional(),
 	zaiApiLine: z.union([z.literal("china"), z.literal("international")]).optional(),
+	zaiUseGlmCodingPlan: z.boolean().optional(),
 })
 
 const fireworksSchema = apiModelIdProviderModelSchema.extend({

src/api/providers/__tests__/zai.spec.ts

@@ -44,6 +44,13 @@ describe("ZAiHandler", () => {
 			expect(OpenAI).toHaveBeenCalledWith(expect.objectContaining({ baseURL: "https://api.z.ai/api/paas/v4" }))
 		})
 
+		it("should use the international GLM Coding Plan URL when toggle is enabled", () => {
+			new ZAiHandler({ zaiApiKey: "test-zai-api-key", zaiApiLine: "international", zaiUseGlmCodingPlan: true })
+			expect(OpenAI).toHaveBeenCalledWith(
+				expect.objectContaining({ baseURL: "https://api.z.ai/api/coding/paas/v4" }),
+			)
+		})
+
 		it("should use the provided API key for international", () => {
 			const zaiApiKey = "test-zai-api-key"
 			new ZAiHandler({ zaiApiKey, zaiApiLine: "international" })
@@ -81,6 +88,13 @@ describe("ZAiHandler", () => {
 			)
 		})
 
+		it("should use the China GLM Coding Plan URL when toggle is enabled", () => {
+			new ZAiHandler({ zaiApiKey: "test-zai-api-key", zaiApiLine: "china", zaiUseGlmCodingPlan: true })
+			expect(OpenAI).toHaveBeenCalledWith(
+				expect.objectContaining({ baseURL: "https://open.bigmodel.cn/api/coding/paas/v4" }),
+			)
+		})
+
 		it("should use the provided API key for China", () => {
 			const zaiApiKey = "test-zai-api-key"
 			new ZAiHandler({ zaiApiKey, zaiApiLine: "china" })
@@ -120,6 +134,16 @@ describe("ZAiHandler", () => {
 			new ZAiHandler({ zaiApiLine: "international" })
 			expect(OpenAI).toHaveBeenCalledWith(expect.objectContaining({ apiKey: "not-provided" }))
 		})
+
+		it("should use standard URL when GLM Coding Plan toggle is false", () => {
+			new ZAiHandler({ zaiApiKey: "test-zai-api-key", zaiApiLine: "international", zaiUseGlmCodingPlan: false })
+			expect(OpenAI).toHaveBeenCalledWith(expect.objectContaining({ baseURL: "https://api.z.ai/api/paas/v4" }))
+		})
+
+		it("should use standard URL when GLM Coding Plan toggle is undefined", () => {
+			new ZAiHandler({ zaiApiKey: "test-zai-api-key", zaiApiLine: "international" })
+			expect(OpenAI).toHaveBeenCalledWith(expect.objectContaining({ baseURL: "https://api.z.ai/api/paas/v4" }))
+		})
 	})
 
 	describe("API Methods", () => {

src/api/providers/zai.ts

@@ -18,10 +18,20 @@ export class ZAiHandler extends BaseOpenAiCompatibleProvider<InternationalZAiMod
 		const models = isChina ? mainlandZAiModels : internationalZAiModels
 		const defaultModelId = isChina ? mainlandZAiDefaultModelId : internationalZAiDefaultModelId
 
+		// Determine the base URL based on region and GLM Coding Plan toggle
+		let baseURL: string
+		if (options.zaiUseGlmCodingPlan) {
+			// Use coding plan endpoints
+			baseURL = isChina ? "https://open.bigmodel.cn/api/coding/paas/v4" : "https://api.z.ai/api/coding/paas/v4"
+		} else {
+			// Use standard endpoints
+			baseURL = isChina ? "https://open.bigmodel.cn/api/paas/v4" : "https://api.z.ai/api/paas/v4"
+		}
+
 		super({
 			...options,
 			providerName: "Z AI",
-			baseURL: isChina ? "https://open.bigmodel.cn/api/paas/v4" : "https://api.z.ai/api/paas/v4",
+			baseURL,
 			apiKey: options.zaiApiKey ?? "not-provided",
 			defaultProviderModelId: defaultModelId,
 			providerModels: models,

webview-ui/src/components/settings/providers/ZAi.tsx

@@ -1,5 +1,5 @@
 import { useCallback } from "react"
-import { VSCodeTextField, VSCodeDropdown, VSCodeOption } from "@vscode/webview-ui-toolkit/react"
+import { VSCodeTextField, VSCodeDropdown, VSCodeOption, VSCodeCheckbox } from "@vscode/webview-ui-toolkit/react"
 
 import type { ProviderSettings } from "@roo-code/types"
 
@@ -71,6 +71,16 @@ export const ZAi = ({ apiConfiguration, setApiConfigurationField }: ZAiProps) =>
 					</VSCodeButtonLink>
 				)}
 			</div>
+			<div>
+				<VSCodeCheckbox
+					checked={apiConfiguration?.zaiUseGlmCodingPlan || false}
+					onChange={(e: any) => setApiConfigurationField("zaiUseGlmCodingPlan", e.target.checked)}>
+					{t("settings:providers.zaiUseGlmCodingPlan")}
+				</VSCodeCheckbox>
+				<div className="text-xs text-vscode-descriptionForeground mt-1">
+					{t("settings:providers.zaiUseGlmCodingPlanDescription")}
+				</div>
+			</div>
 		</>
 	)
 }

webview-ui/src/i18n/locales/en/settings.json

@@ -294,6 +294,8 @@
 		"getZaiApiKey": "Get Z AI API Key",
 		"zaiEntrypoint": "Z AI Entrypoint",
 		"zaiEntrypointDescription": "Please select the appropriate API entrypoint based on your location. If you are in China, choose open.bigmodel.cn. Otherwise, choose api.z.ai.",
+		"zaiUseGlmCodingPlan": "Use GLM Coding Plan",
+		"zaiUseGlmCodingPlanDescription": "Route requests through GLM Coding Plan endpoints to use your plan instead of API credits. When plan limits are reached, disable this toggle to continue with API credits.",
 		"geminiApiKey": "Gemini API Key",
 		"getGroqApiKey": "Get Groq API Key",
 		"groqApiKey": "Groq API Key",