Add Vercel AI Gateway provider support (#1183)

open-sse/config/providers.js

@@ -124,6 +124,10 @@ export const PROVIDERS = {
     baseUrl: "https://api.openai.com/v1/chat/completions",
     format: "openai"
   },
+  "vercel-ai-gateway": {
+    baseUrl: "https://ai-gateway.vercel.sh/v1/chat/completions",
+    format: "openai"
+  },
   glm: {
     baseUrl: "https://api.z.ai/api/anthropic/v1/messages",
     format: "claude",

open-sse/services/model.js

@@ -18,6 +18,8 @@ const ALIAS_TO_PROVIDER_ID = {
   el: "elevenlabs",
   // API Key providers
   openai: "openai",
+  vercel: "vercel-ai-gateway",
+  "vercel-ai-gateway": "vercel-ai-gateway",
   anthropic: "anthropic",
   gemini: "gemini",
   openrouter: "openrouter",

src/app/api/providers/[id]/models/route.js

@@ -239,6 +239,7 @@ const PROVIDER_MODELS_CONFIG = {
   chutes: createOpenAIModelsConfig("https://llm.chutes.ai/v1/models"),
   nvidia: createOpenAIModelsConfig("https://integrate.api.nvidia.com/v1/models"),
   assemblyai: createOpenAIModelsConfig("https://api.assemblyai.com/v1/models"),
+  "vercel-ai-gateway": createOpenAIModelsConfig("https://ai-gateway.vercel.sh/v1/models"),
 
   // Custom resolvers (non-OpenAI-shaped APIs / token-refresh flows)
   kiro: {

src/app/api/providers/[id]/test/testUtils.js

@@ -399,6 +399,10 @@ async function testApiKeyConnection(connection, effectiveProxy = null) {
         const res = await fetchWithConnectionProxy("https://api.openai.com/v1/models", { headers: { Authorization: `Bearer ${connection.apiKey}` } }, effectiveProxy);
         return { valid: res.ok, error: res.ok ? null : "Invalid API key" };
       }
+      case "vercel-ai-gateway": {
+        const res = await fetchWithConnectionProxy("https://ai-gateway.vercel.sh/v1/models", { headers: { Authorization: `Bearer ${connection.apiKey}` } }, effectiveProxy);
+        return { valid: res.ok, error: res.ok ? null : "Invalid API key" };
+      }
       case "anthropic": {
         const res = await fetchWithConnectionProxy("https://api.anthropic.com/v1/messages", {
           method: "POST",

src/app/api/providers/validate/route.js

@@ -251,6 +251,13 @@ export async function POST(request) {
           isValid = openaiRes.ok;
           break;
 
+        case "vercel-ai-gateway":
+          const vercelAiGatewayRes = await fetch("https://ai-gateway.vercel.sh/v1/models", {
+            headers: { "Authorization": `Bearer ${apiKey}` },
+          });
+          isValid = vercelAiGatewayRes.ok;
+          break;
+
         case "anthropic":
           const anthropicRes = await fetch("https://api.anthropic.com/v1/messages", {
             method: "POST",

src/shared/constants/config.js

@@ -75,6 +75,7 @@ export const PROVIDER_ENDPOINTS = {
   "volcengine-ark": "https://ark.cn-beijing.volces.com/api/coding/v3/chat/completions",
   byteplus: "https://ark.ap-southeast.bytepluses.com/api/coding/v3/chat/completions",
   openai: "https://api.openai.com/v1/chat/completions",
+  "vercel-ai-gateway": "https://ai-gateway.vercel.sh/v1/chat/completions",
   anthropic: "https://api.anthropic.com/v1/messages",
   gemini: "https://generativelanguage.googleapis.com/v1beta/models",
   ollama: "https://ollama.com/api/chat",

src/shared/constants/providers.js

@@ -78,6 +78,7 @@ export const APIKEY_PROVIDERS = {
   "xiaomi-tokenplan": { id: "xiaomi-tokenplan", alias: "xmtp", name: "Xiaomi MiMo (Token Plan)", icon: "smart_toy", color: "#FF6700", textIcon: "XT", website: "https://mimo.xiaomi.com", notice: { text: "Xiaomi MiMo Token Plan subscription (API key starts with tp-). Uses Singapore endpoint.", apiKeyUrl: "https://mimo.xiaomi.com" } },
   "volcengine-ark": { id: "volcengine-ark", alias: "ark", name: "Volcengine Ark", icon: "cloud", color: "#1677FF", textIcon: "ARK", website: "https://ark.cn-beijing.volces.com", notice: { apiKeyUrl: "https://console.volcengine.com/ark/region:ark+cn-beijing/apiKey" } },
   openai: { id: "openai", alias: "openai", name: "OpenAI", icon: "auto_awesome", color: "#10A37F", textIcon: "OA", website: "https://platform.openai.com", notice: { apiKeyUrl: "https://platform.openai.com/api-keys" }, serviceKinds: ["llm", "embedding", "tts", "stt", "image", "imageToText", "webSearch"], thinkingConfig: THINKING_CONFIG.effort, searchViaChat: { defaultModel: "gpt-4o-mini", pricingUrl: "https://openai.com/api/pricing" }, ttsConfig: { baseUrl: "https://api.openai.com/v1/audio/speech", authType: "apikey", authHeader: "bearer", format: "openai", models: [{ id: "tts-1", name: "TTS-1" }, { id: "tts-1-hd", name: "TTS-1 HD" }, { id: "gpt-4o-mini-tts", name: "GPT-4o Mini TTS" }] }, sttConfig: { baseUrl: "https://api.openai.com/v1/audio/transcriptions", authType: "apikey", authHeader: "bearer", format: "openai", models: [{ id: "whisper-1", name: "Whisper 1" }, { id: "gpt-4o-transcribe", name: "GPT-4o Transcribe" }, { id: "gpt-4o-mini-transcribe", name: "GPT-4o Mini Transcribe" }] }, embeddingConfig: { baseUrl: "https://api.openai.com/v1/embeddings", authType: "apikey", authHeader: "bearer", models: [{ id: "text-embedding-3-small", name: "Text Embedding 3 Small", dimensions: 1536 }, { id: "text-embedding-3-large", name: "Text Embedding 3 Large", dimensions: 3072 }, { id: "text-embedding-ada-002", name: "Text Embedding Ada 002", dimensions: 1536 }] } },
+  "vercel-ai-gateway": { id: "vercel-ai-gateway", alias: "vercel", name: "Vercel AI Gateway", icon: "deployed_code", color: "#111827", textIcon: "VG", website: "https://vercel.com/ai-gateway", notice: { text: "Unified OpenAI-compatible endpoint from Vercel. Use your AI Gateway API key, then pick models with provider/model IDs like anthropic/claude-sonnet-4.6 or openai/gpt-5.4.", apiKeyUrl: "https://vercel.com/dashboard/~/ai-gateway" }, passthroughModels: true, serviceKinds: ["llm"] },
   anthropic: { id: "anthropic", alias: "anthropic", name: "Anthropic", icon: "smart_toy", color: "#D97757", textIcon: "AN", website: "https://console.anthropic.com", notice: { apiKeyUrl: "https://console.anthropic.com/settings/keys" }, serviceKinds: ["llm", "imageToText"] },
   "opencode-go": { id: "opencode-go", alias: "ocg", name: "OpenCode Go", icon: "terminal", color: "#E87040", textIcon: "OC", website: "https://opencode.ai/auth", notice: { text: "OpenCode Go subscription: $5/mo (then $10/mo). Access to Kimi, GLM, Qwen, MiMo, MiniMax models.", apiKeyUrl: "https://opencode.ai/auth" } },
   azure: { id: "azure", alias: "azure", name: "Azure OpenAI", icon: "cloud", color: "#0078D4", textIcon: "AZ", website: "https://azure.microsoft.com/en-us/products/ai-services/openai-service", notice: { apiKeyUrl: "https://portal.azure.com/#view/Microsoft_Azure_ProjectOxford/CognitiveServicesHub/~/OpenAI" }, hasProviderSpecificData: true },