feat(zoo-gateway): provider types, handler, and model fetcher

packages/types/src/provider-settings.ts

@@ -38,6 +38,7 @@ export const DEFAULT_CONSECUTIVE_MISTAKE_LIMIT = 3
 export const dynamicProviders = [
 	"openrouter",
 	"vercel-ai-gateway",
+	"zoo-gateway",
 	"litellm",
 	"requesty",
 	"unbound",
@@ -399,6 +400,12 @@ const vercelAiGatewaySchema = baseProviderSettingsSchema.extend({
 	vercelAiGatewayModelId: z.string().optional(),
 })
 
+const zooGatewaySchema = baseProviderSettingsSchema.extend({
+	zooSessionToken: z.string().optional(),
+	zooGatewayModelId: z.string().optional(),
+	zooGatewayBaseUrl: z.string().optional(),
+})
+
 const basetenSchema = apiModelIdProviderModelSchema.extend({
 	basetenApiKey: z.string().optional(),
 })
@@ -437,6 +444,7 @@ export const providerSettingsSchemaDiscriminated = z.discriminatedUnion("apiProv
 	fireworksSchema.merge(z.object({ apiProvider: z.literal("fireworks") })),
 	qwenCodeSchema.merge(z.object({ apiProvider: z.literal("qwen-code") })),
 	vercelAiGatewaySchema.merge(z.object({ apiProvider: z.literal("vercel-ai-gateway") })),
+	zooGatewaySchema.merge(z.object({ apiProvider: z.literal("zoo-gateway") })),
 	defaultSchema,
 ])
 
@@ -471,6 +479,7 @@ export const providerSettingsSchema = z.object({
 	...fireworksSchema.shape,
 	...qwenCodeSchema.shape,
 	...vercelAiGatewaySchema.shape,
+	...zooGatewaySchema.shape,
 	...codebaseIndexProviderSchema.shape,
 })
 
@@ -501,6 +510,7 @@ export const modelIdKeys = [
 	"unboundModelId",
 	"litellmModelId",
 	"vercelAiGatewayModelId",
+	"zooGatewayModelId",
 ] as const satisfies readonly (keyof ProviderSettings)[]
 
 export type ModelIdKey = (typeof modelIdKeys)[number]
@@ -546,6 +556,7 @@ export const modelIdKeysByProvider: Record<TypicalProvider, ModelIdKey> = {
 	zai: "apiModelId",
 	fireworks: "apiModelId",
 	"vercel-ai-gateway": "vercelAiGatewayModelId",
+	"zoo-gateway": "zooGatewayModelId",
 }
 
 /**
@@ -564,8 +575,13 @@ export const getApiProtocol = (provider: ProviderName | undefined, modelId?: str
 		return "anthropic"
 	}
 
-	// Vercel AI Gateway uses anthropic protocol for anthropic models.
-	if (provider && provider === "vercel-ai-gateway" && modelId && modelId.toLowerCase().startsWith("anthropic/")) {
+	// Vercel AI Gateway, Zoo Gateway, and Roo use anthropic protocol for anthropic models.
+	if (
+		provider &&
+		["vercel-ai-gateway", "zoo-gateway", "roo"].includes(provider) &&
+		modelId &&
+		modelId.toLowerCase().startsWith("anthropic/")
+	) {
 		return "anthropic"
 	}
 
@@ -662,6 +678,7 @@ export const MODELS_BY_PROVIDER: Record<
 	requesty: { id: "requesty", label: "Requesty", models: [] },
 	unbound: { id: "unbound", label: "Unbound", models: [] },
 	"vercel-ai-gateway": { id: "vercel-ai-gateway", label: "Vercel AI Gateway", models: [] },
+	"zoo-gateway": { id: "zoo-gateway", label: "Zoo Gateway", models: [] },
 
 	// Local providers; models discovered from localhost endpoints.
 	lmstudio: { id: "lmstudio", label: "LM Studio", models: [] },

packages/types/src/providers/index.ts

@@ -25,6 +25,7 @@ export * from "./vercel-ai-gateway.js"
 export * from "./zai.js"
 export * from "./minimax.js"
 export * from "./mimo.js"
+export * from "./zoo-gateway.js"
 
 import { anthropicDefaultModelId } from "./anthropic.js"
 import { basetenDefaultModelId } from "./baseten.js"
@@ -49,6 +50,7 @@ import { vercelAiGatewayDefaultModelId } from "./vercel-ai-gateway.js"
 import { internationalZAiDefaultModelId, mainlandZAiDefaultModelId } from "./zai.js"
 import { minimaxDefaultModelId } from "./minimax.js"
 import { mimoDefaultModelId } from "./mimo.js"
+import { zooGatewayDefaultModelId } from "./zoo-gateway.js"
 
 // Import the ProviderName type from provider-settings to avoid duplication
 import type { ProviderName } from "../provider-settings.js"
@@ -115,6 +117,8 @@ export function getProviderDefaultModelId(
 			return unboundDefaultModelId
 		case "vercel-ai-gateway":
 			return vercelAiGatewayDefaultModelId
+		case "zoo-gateway":
+			return zooGatewayDefaultModelId
 		case "anthropic":
 		case "gemini-cli":
 		case "fake-ai":

packages/types/src/providers/zoo-gateway.ts

@@ -0,0 +1,24 @@
+import type { ModelInfo } from "../model.js"
+
+// Zoo Gateway uses the same model ID format as Vercel AI Gateway (provider/model-name)
+export const zooGatewayDefaultModelId = "anthropic/claude-sonnet-4"
+
+// Zoo Gateway serves the same models as Vercel AI Gateway, so prompt caching support is identical
+// We reuse VERCEL_AI_GATEWAY_PROMPT_CACHING_MODELS from vercel-ai-gateway.ts
+// Instead of duplicating, we just export a reference to indicate they're the same
+export { VERCEL_AI_GATEWAY_PROMPT_CACHING_MODELS as ZOO_GATEWAY_PROMPT_CACHING_MODELS } from "./vercel-ai-gateway.js"
+
+export const zooGatewayDefaultModelInfo: ModelInfo = {
+	maxTokens: 64000,
+	contextWindow: 200000,
+	supportsImages: true,
+	supportsPromptCache: true,
+	inputPrice: 3,
+	outputPrice: 15,
+	cacheWritesPrice: 3.75,
+	cacheReadsPrice: 0.3,
+	description:
+		"Claude Sonnet 4 significantly improves on Sonnet 3.7's industry-leading capabilities, excelling in coding with a state-of-the-art 72.7% on SWE-bench. The model balances performance and efficiency for internal and external use cases, with enhanced steerability for greater control over implementations.",
+}
+
+export const ZOO_GATEWAY_DEFAULT_TEMPERATURE = 0.7

src/api/index.ts

@@ -32,6 +32,7 @@ import {
 	ZAiHandler,
 	FireworksHandler,
 	VercelAiGatewayHandler,
+	ZooGatewayHandler,
 	MiniMaxHandler,
 	MimoHandler,
 	BasetenHandler,
@@ -176,6 +177,8 @@ export function buildApiHandler(configuration: ProviderSettings): ApiHandler {
 			return new FireworksHandler(options)
 		case "vercel-ai-gateway":
 			return new VercelAiGatewayHandler(options)
+		case "zoo-gateway":
+			return new ZooGatewayHandler(options)
 		case "minimax":
 			return new MiniMaxHandler(options)
 		case "baseten":