feat(providers): add Claude Code Native provider

.changeset/cute-lines-pump.md

@@ -0,0 +1,7 @@
+---
+"kilocode-docs": minor
+"@kilocode/cli": minor
+"kilo-code": minor
+---
+
+Add support for Claude Code Native integration.

apps/kilocode-docs/docs/providers/claude-code-native.md

@@ -0,0 +1,41 @@
+---
+sidebar_label: Claude Code Native
+---
+
+# Using Claude Code With Kilo Code
+
+Claude Code is Anthropic's official CLI that provides direct access to Claude models from your terminal. Using Claude Code with Kilo Code lets you leverage your existing CLI setup without needing separate API keys. This implementation uses an updated technique to speak directly to the Claude API, eliminating many of the downsides of the previous implementation. It is cache efficient, and token efficient.
+
+## Supported Models
+
+Kilo Code supports the following Claude models through Claude Code:
+
+- **Claude Opus 4.5** (Most capable)
+- **Claude Sonnet 4.5** (Latest, recommended)
+- **Claude 4.5 Haiku** (Fast responses)
+
+## Preparing to Configure
+
+1. Install `claude` using the Homebrew or 'native' [installation methods](https://claudelog.com/install-claude-code/):
+
+- macOS or Linux: `curl -fsSL https://claude.ai/install.sh | bash`
+- macOS: `brew install --cask claude-code`
+- Windows: `irm https://claude.ai/install.ps1 | iex`
+
+2. Login to `claude` and get a long lived token (good for one year): `claude setup-token`
+
+3. Record the token value - it will not be shown again.
+
+## Configuration in Kilo Code
+
+1. **Open Kilo Code Settings:** Click the gear icon (<Codicon name="gear" />) in the Kilo Code panel.
+2. **Select Provider:** Choose "Claude Code Native" from the "API Provider" dropdown.
+3. **Select Model:** Choose your desired Claude model from the "Model" dropdown.
+4. **Enter your Token:** Using the token from recorded above, enter it as your API key
+5. Use claude as normal!
+
+## Tips and Notes
+
+- **Advanced Reasoning:** Full support for Claude's thinking modes and reasoning capabilities when available.
+- **Context Windows:** Claude models have large context windows, allowing you to include significant amounts of code and context in your prompts.
+- **Enhance Prompt Feature:** Full compatibility with Kilo Code's Enhance Prompt feature, allowing you to automatically improve and refine your prompts before sending them to Claude.

apps/kilocode-docs/sidebars.ts

@@ -56,6 +56,7 @@ const sidebars: SidebarsConfig = {
 								"providers/cerebras", // kilocode_change
 								"providers/chutes-ai",
 								"providers/claude-code",
+								"providers/claude-code-native",
 								"providers/deepseek",
 								"providers/fireworks",
 								"providers/gemini",

cli/src/constants/providers/labels.ts

@@ -13,6 +13,7 @@ export const PROVIDER_LABELS: Record<ProviderName, string> = {
 	gemini: "Google Gemini",
 	vertex: "GCP Vertex AI",
 	"claude-code": "Claude Code",
+	claudecodenative: "Claude Code Native",
 	mistral: "Mistral",
 	groq: "Groq",
 	deepseek: "DeepSeek",

cli/src/constants/providers/models.ts

@@ -43,6 +43,8 @@ import {
 	rooDefaultModelId,
 	claudeCodeModels,
 	claudeCodeDefaultModelId,
+	claudecodenativeModels,
+	claudecodenativeDefaultModelId,
 	geminiCliModels,
 	geminiCliDefaultModelId,
 	minimaxModels,
@@ -158,6 +160,7 @@ export const PROVIDER_TO_ROUTER_NAME: Record<ProviderName, RouterName | null> =
 	featherless: null,
 	roo: null,
 	"claude-code": null,
+	claudecodenative: null,
 	"gemini-cli": null,
 	"virtual-quota-fallback": null,
 	huggingface: null,
@@ -210,6 +213,7 @@ export const PROVIDER_MODEL_FIELD: Record<ProviderName, string | null> = {
 	featherless: null,
 	roo: null,
 	"claude-code": null,
+	claudecodenative: "apiModelId",
 	"gemini-cli": null,
 	"virtual-quota-fallback": null,
 	huggingface: null,
@@ -271,6 +275,7 @@ export const DEFAULT_MODEL_IDS: Partial<Record<ProviderName, string>> = {
 	litellm: "gpt-4",
 	"qwen-code": qwenCodeDefaultModelId,
 	"claude-code": claudeCodeDefaultModelId,
+	claudecodenative: claudecodenativeDefaultModelId,
 	doubao: doubaoDefaultModelId,
 	fireworks: fireworksDefaultModelId,
 	"io-intelligence": "deepseek-ai/DeepSeek-R1-0528",
@@ -413,6 +418,11 @@ export function getModelsByProvider(params: {
 				models: claudeCodeModels as ModelRecord,
 				defaultModel: claudeCodeDefaultModelId,
 			}
+		case "claudecodenative":
+			return {
+				models: claudecodenativeModels as ModelRecord,
+				defaultModel: claudecodenativeDefaultModelId,
+			}
 		case "gemini-cli":
 			return {
 				models: geminiCliModels as ModelRecord,

cli/src/constants/providers/settings.ts

@@ -839,6 +839,13 @@ export const getProviderSettings = (provider: ProviderName, config: ProviderSett
 				createFieldConfig("claudeCodeMaxOutputTokens", config, "8000"),
 			]
 
+		case "claudecodenative":
+			return [
+				createFieldConfig("apiKey", config),
+				createFieldConfig("apiModelId", config, "claude-sonnet-4-5"),
+				createFieldConfig("anthropicBaseUrl", config, "Default"),
+			]
+
 		case "mistral":
 			return [
 				createFieldConfig("mistralApiKey", config),
@@ -1059,6 +1066,7 @@ export const PROVIDER_DEFAULT_MODELS: Record<ProviderName, string> = {
 	gemini: "gemini-1.5-pro-latest",
 	vertex: "claude-3-5-sonnet@20241022",
 	"claude-code": "claude-3-5-sonnet-20241022",
+	claudecodenative: "claude-sonnet-4-5",
 	mistral: "mistral-large-latest",
 	groq: "llama-3.1-70b-versatile",
 	deepseek: "deepseek-chat",

cli/src/constants/providers/validation.ts

@@ -14,6 +14,7 @@ export const PROVIDER_REQUIRED_FIELDS: Record<ProviderName, string[]> = {
 	bedrock: ["awsAccessKey", "awsSecretKey", "awsRegion", "apiModelId"],
 	gemini: ["geminiApiKey", "apiModelId"],
 	"claude-code": ["claudeCodePath", "apiModelId"],
+	claudecodenative: ["apiKey", "apiModelId"],
 	mistral: ["mistralApiKey", "apiModelId"],
 	groq: ["groqApiKey", "apiModelId"],
 	deepseek: ["deepSeekApiKey", "apiModelId"],

packages/types/src/provider-settings.ts

@@ -29,6 +29,7 @@ import {
 	xaiModels,
 	internationalZAiModels,
 	minimaxModels,
+	claudecodenativeModels,
 } from "./providers/index.js"
 
 /**
@@ -162,6 +163,7 @@ export const providerNames = [
 	"vertex",
 	"xai",
 	"zai",
+	"claudecodenative",
 ] as const
 
 export const providerNamesSchema = z.enum(providerNames)
@@ -226,6 +228,8 @@ const anthropicSchema = apiModelIdProviderModelSchema.extend({
 	anthropicBeta1MContext: z.boolean().optional(), // Enable 'context-1m-2025-08-07' beta for 1M context window.
 })
 
+const claudecodenativeSchema = anthropicSchema
+
 const claudeCodeSchema = apiModelIdProviderModelSchema.extend({
 	claudeCodePath: z.string().optional(),
 	claudeCodeMaxOutputTokens: z.number().int().min(1).max(200000).optional(),
@@ -588,6 +592,7 @@ export const providerSettingsSchemaDiscriminated = z.discriminatedUnion("apiProv
 	rooSchema.merge(z.object({ apiProvider: z.literal("roo") })),
 	vercelAiGatewaySchema.merge(z.object({ apiProvider: z.literal("vercel-ai-gateway") })),
 	sapAiCoreSchema.merge(z.object({ apiProvider: z.literal("sap-ai-core") })), // kilocode_change
+	claudecodenativeSchema.merge(z.object({ apiProvider: z.literal("claudecodenative") })),
 	defaultSchema,
 ])
 
@@ -640,6 +645,7 @@ export const providerSettingsSchema = z.object({
 	...rooSchema.shape,
 	...vercelAiGatewaySchema.shape,
 	...sapAiCoreSchema.shape, // kilocode_change
+	...claudecodenativeSchema.shape,
 	...codebaseIndexProviderSchema.shape,
 })
 
@@ -741,14 +747,21 @@ export const modelIdKeysByProvider: Record<TypicalProvider, ModelIdKey> = {
 	roo: "apiModelId",
 	"vercel-ai-gateway": "vercelAiGatewayModelId",
 	"virtual-quota-fallback": "apiModelId",
+	claudecodenative: "apiModelId",
 }
 
 /**
  * ANTHROPIC_STYLE_PROVIDERS
  */
 
 // Providers that use Anthropic-style API protocol.
-export const ANTHROPIC_STYLE_PROVIDERS: ProviderName[] = ["anthropic", "claude-code", "bedrock", "minimax"]
+export const ANTHROPIC_STYLE_PROVIDERS: ProviderName[] = [
+	"anthropic",
+	"claude-code",
+	"bedrock",
+	"minimax",
+	"claudecodenative",
+]
 
 export const getApiProtocol = (provider: ProviderName | undefined, modelId?: string): "anthropic" | "openai" => {
 	if (provider && ANTHROPIC_STYLE_PROVIDERS.includes(provider)) {
@@ -894,4 +907,9 @@ export const MODELS_BY_PROVIDER: Record<
 	// Local providers; models discovered from localhost endpoints.
 	lmstudio: { id: "lmstudio", label: "LM Studio", models: [] },
 	ollama: { id: "ollama", label: "Ollama", models: [] },
+	claudecodenative: {
+		id: "claudecodenative",
+		label: "Claude Code Native",
+		models: Object.keys(claudecodenativeModels),
+	},
 }

packages/types/src/providers/anthropic.ts

@@ -63,6 +63,19 @@ export const anthropicModels = {
 		supportsReasoningBudget: true,
 		supportsVerbosity: true, // kilocode_change
 	},
+	"claude-opus-4-5": {
+		maxTokens: 32_000, // Overridden to 8k if `enableReasoningEffort` is false.
+		contextWindow: 200_000,
+		supportsImages: true,
+		supportsPromptCache: true,
+		supportsNativeTools: true,
+		inputPrice: 5.0, // $5 per million input tokens
+		outputPrice: 25.0, // $25 per million output tokens
+		cacheWritesPrice: 6.25, // $6.25 per million tokens
+		cacheReadsPrice: 0.5, // $0.50 per million tokens
+		supportsReasoningBudget: true,
+		supportsVerbosity: true, // kilocode_change
+	},
 	"claude-opus-4-1-20250805": {
 		maxTokens: 32_000, // Overridden to 8k if `enableReasoningEffort` is false.
 		contextWindow: 200_000,
@@ -170,6 +183,21 @@ export const anthropicModels = {
 		description:
 			"Claude Haiku 4.5 delivers near-frontier intelligence at lightning speeds with extended thinking, vision, and multilingual support.",
 	},
+	"claude-haiku-4-5": {
+		maxTokens: 64_000,
+		contextWindow: 200_000,
+		supportsImages: true,
+		supportsPromptCache: true,
+		supportsNativeTools: true,
+		defaultToolProtocol: "native", // kilocode_change
+		inputPrice: 1.0,
+		outputPrice: 5.0,
+		cacheWritesPrice: 1.25,
+		cacheReadsPrice: 0.1,
+		supportsReasoningBudget: true,
+		description:
+			"Claude Haiku 4.5 delivers near-frontier intelligence at lightning speeds with extended thinking, vision, and multilingual support.",
+	},
 } as const satisfies Record<string, ModelInfo>
 
 export const ANTHROPIC_DEFAULT_MAX_TOKENS = 8192

packages/types/src/providers/claudecodenative.ts

@@ -0,0 +1,11 @@
+import type { ModelInfo } from "../model.js"
+import { anthropicModels } from "./anthropic.js"
+
+export type ClaudeCodeNativeModelId = keyof typeof claudecodenativeModels
+export const claudecodenativeDefaultModelId: ClaudeCodeNativeModelId = "claude-sonnet-4-5"
+
+export const claudecodenativeModels = {
+	"claude-sonnet-4-5": anthropicModels["claude-sonnet-4-5"],
+	"claude-opus-4-5": anthropicModels["claude-opus-4-5"],
+	"claude-haiku-4-5": anthropicModels["claude-haiku-4-5"],
+} as const satisfies Record<string, ModelInfo>

packages/types/src/providers/index.ts

@@ -10,6 +10,7 @@ export * from "./featherless.js"
 export * from "./fireworks.js"
 export * from "./gemini.js"
 // kilocode_change start
+export * from "./claudecodenative.js"
 export * from "./gemini-cli.js"
 export * from "./ovhcloud.js"
 export * from "./synthetic.js"
@@ -71,6 +72,7 @@ import { vercelAiGatewayDefaultModelId } from "./vercel-ai-gateway.js"
 import { internationalZAiDefaultModelId, mainlandZAiDefaultModelId } from "./zai.js"
 import { deepInfraDefaultModelId } from "./deepinfra.js"
 import { minimaxDefaultModelId } from "./minimax.js"
+import { claudecodenativeDefaultModelId } from "./claudecodenative.js"
 
 // Import the ProviderName type from provider-settings to avoid duplication
 import type { ProviderName } from "../provider-settings.js"
@@ -155,6 +157,8 @@ export function getProviderDefaultModelId(
 			return qwenCodeDefaultModelId
 		case "vercel-ai-gateway":
 			return vercelAiGatewayDefaultModelId
+		case "claudecodenative":
+			return claudecodenativeDefaultModelId
 		case "anthropic":
 		case "gemini-cli":
 		case "human-relay":

src/api/index.ts

@@ -51,6 +51,7 @@ import {
 	DeepInfraHandler,
 	MiniMaxHandler,
 	BasetenHandler,
+	ClaudeCodeNativeHandler,
 } from "./providers"
 // kilocode_change start
 import { KilocodeOpenrouterHandler } from "./providers/kilocode-openrouter"
@@ -156,6 +157,8 @@ export function buildApiHandler(configuration: ProviderSettings): ApiHandler {
 			return new AnthropicHandler(options)
 		case "claude-code":
 			return new ClaudeCodeHandler(options)
+		case "claudecodenative":
+			return new ClaudeCodeNativeHandler(options)
 		// kilocode_change start
 		case "glama":
 			return new GlamaHandler(options)