Add new provider OpenRouter

.env.template

@@ -81,3 +81,9 @@ SILICONFLOW_API_KEY=
 
 ### siliconflow Api url (optional)
 SILICONFLOW_URL=
+
+### openrouter Api key (optional)
+OPENROUTER_API_KEY=
+
+### openrouter Api url (optional)
+OPENROUTER_URL=

app/api/[provider]/[...path]/route.ts

@@ -14,6 +14,7 @@ import { handle as deepseekHandler } from "../../deepseek";
 import { handle as siliconflowHandler } from "../../siliconflow";
 import { handle as xaiHandler } from "../../xai";
 import { handle as chatglmHandler } from "../../glm";
+import { handle as openrouterHandler } from "../../openrouter";
 import { handle as proxyHandler } from "../../proxy";
 
 async function handle(
@@ -50,6 +51,8 @@ async function handle(
       return chatglmHandler(req, { params });
     case ApiPath.SiliconFlow:
       return siliconflowHandler(req, { params });
+    case ApiPath.OpenRouter:
+      return openrouterHandler(req, { params });
     case ApiPath.OpenAI:
       return openaiHandler(req, { params });
     default:

app/api/auth.ts

@@ -104,6 +104,9 @@ export function auth(req: NextRequest, modelProvider: ModelProvider) {
       case ModelProvider.SiliconFlow:
         systemApiKey = serverConfig.siliconFlowApiKey;
         break;
+      case ModelProvider.OpenRouter:
+        systemApiKey = serverConfig.openrouterApiKey;
+        break;
       case ModelProvider.GPT:
       default:
         if (req.nextUrl.pathname.includes("azure/deployments")) {

app/api/openrouter.ts

@@ -0,0 +1,146 @@
+import { getServerSideConfig } from "@/app/config/server";
+import {
+  OPENROUTER_BASE_URL,
+  OpenRouter,
+  ApiPath,
+  ServiceProvider,
+  ModelProvider,
+} from "@/app/constant";
+import { prettyObject } from "@/app/utils/format";
+import { NextRequest, NextResponse } from "next/server";
+import { auth } from "./auth";
+import { isModelNotavailableInServer } from "@/app/utils/model";
+
+const ALLOWED_PATH = new Set([OpenRouter.ChatPath]);
+
+export async function handle(
+  req: NextRequest,
+  { params }: { params: { path: string[] } },
+) {
+  console.log("[OpenRouter Route] params ", params);
+
+  if (req.method === "OPTIONS") {
+    return NextResponse.json({ body: "OK" }, { status: 200 });
+  }
+
+  const subpath = params.path.join("/");
+
+  if (!ALLOWED_PATH.has(subpath)) {
+    console.log("[OpenRouter Route] forbidden path ", subpath);
+    return NextResponse.json(
+      {
+        error: true,
+        msg: "you are not allowed to request " + subpath,
+      },
+      {
+        status: 403,
+      },
+    );
+  }
+
+  const authResult = auth(req, ModelProvider.OpenRouter);
+  if (authResult.error) {
+    return NextResponse.json(authResult, {
+      status: 401,
+    });
+  }
+
+  try {
+    const response = await request(req);
+    return response;
+  } catch (e) {
+    console.error("[OpenRouter] ", e);
+    return NextResponse.json(prettyObject(e));
+  }
+}
+
+const serverConfig = getServerSideConfig();
+
+async function request(req: NextRequest) {
+  const controller = new AbortController();
+
+  let path = `${req.nextUrl.pathname}`.replaceAll(ApiPath.OpenRouter, "");
+
+  let baseUrl = serverConfig.openrouterUrl || OPENROUTER_BASE_URL;
+
+  if (!baseUrl.startsWith("http")) {
+    baseUrl = `https://${baseUrl}`;
+  }
+
+  if (baseUrl.endsWith("/")) {
+    baseUrl = baseUrl.slice(0, -1);
+  }
+
+  console.log("[Proxy] ", path);
+  console.log("[Base Url]", baseUrl);
+
+  const timeoutId = setTimeout(
+    () => {
+      controller.abort();
+    },
+    10 * 60 * 1000,
+  );
+
+  const fetchUrl = `${baseUrl}${path}`;
+  const fetchOptions: RequestInit = {
+    headers: {
+      "Content-Type": "application/json",
+      Authorization: req.headers.get("Authorization") ?? "",
+    },
+    method: req.method,
+    body: req.body,
+    redirect: "manual",
+    // @ts-ignore
+    duplex: "half",
+    signal: controller.signal,
+  };
+
+  // #1815 try to refuse some request to some models
+  if (serverConfig.customModels && req.body) {
+    try {
+      const clonedBody = await req.text();
+      fetchOptions.body = clonedBody;
+
+      const jsonBody = JSON.parse(clonedBody) as { model?: string };
+
+      // not undefined and is false
+      if (
+        isModelNotavailableInServer(
+          serverConfig.customModels,
+          jsonBody?.model as string,
+          ServiceProvider.OpenRouter as string,
+        )
+      ) {
+        return NextResponse.json(
+          {
+            error: true,
+            message: `you are not allowed to use ${jsonBody?.model} model`,
+          },
+          {
+            status: 403,
+          },
+        );
+      }
+    } catch (e) {
+      console.error(`[OpenRouter] filter`, e);
+    }
+  }
+
+  try {
+    const res = await fetch(fetchUrl, fetchOptions);
+
+    // to prevent browser prompt for credentials
+    const newHeaders = new Headers(res.headers);
+    newHeaders.delete("www-authenticate");
+    // to disable nginx buffering
+    newHeaders.set("X-Accel-Buffering", "no");
+
+    return new Response(res.body, {
+      status: res.status,
+      statusText: res.statusText,
+      headers: newHeaders,
+    });
+  } finally {
+    clearTimeout(timeoutId);
+  }
+}

app/client/api.ts

@@ -24,6 +24,7 @@ import { DeepSeekApi } from "./platforms/deepseek";
 import { XAIApi } from "./platforms/xai";
 import { ChatGLMApi } from "./platforms/glm";
 import { SiliconflowApi } from "./platforms/siliconflow";
+import { OpenRouterApi } from "./platforms/openrouter";
 
 export const ROLES = ["system", "user", "assistant"] as const;
 export type MessageRole = (typeof ROLES)[number];
@@ -173,6 +174,9 @@ export class ClientApi {
       case ModelProvider.SiliconFlow:
         this.llm = new SiliconflowApi();
         break;
+      case ModelProvider.OpenRouter:
+        this.llm = new OpenRouterApi();
+        break;
       default:
         this.llm = new ChatGPTApi();
     }
@@ -382,6 +386,8 @@ export function getClientApi(provider: ServiceProvider): ClientApi {
       return new ClientApi(ModelProvider.ChatGLM);
     case ServiceProvider.SiliconFlow:
       return new ClientApi(ModelProvider.SiliconFlow);
+    case ServiceProvider.OpenRouter:
+      return new ClientApi(ModelProvider.OpenRouter);
     default:
       return new ClientApi(ModelProvider.GPT);
   }

app/client/platforms/openrouter.ts

@@ -0,0 +1,266 @@
+"use client";
+
+import { ApiPath, OPENROUTER_BASE_URL, OpenRouter } from "@/app/constant";
+import {
+  useAccessStore,
+  useAppConfig,
+  useChatStore,
+  usePluginStore,
+  ChatMessageTool,
+} from "@/app/store";
+import { getClientConfig } from "@/app/config/client";
+import {
+  getMessageTextContent,
+  isVisionModel,
+  getTimeoutMSByModel,
+} from "@/app/utils";
+import { preProcessImageContent, streamWithThink } from "@/app/utils/chat";
+import { cloudflareAIGatewayUrl } from "@/app/utils/cloudflare";
+
+import {
+  ChatOptions,
+  getHeaders,
+  LLMApi,
+  LLMModel,
+  LLMUsage,
+  SpeechOptions,
+} from "../api";
+import { fetch } from "@/app/utils/stream";
+import { RequestPayload } from "./openai";
+
+export class OpenRouterApi implements LLMApi {
+  path(path: string): string {
+    const accessStore = useAccessStore.getState();
+
+    let baseUrl = "";
+
+    if (accessStore.useCustomConfig) {
+      baseUrl = accessStore.openrouterUrl;
+    }
+
+    if (baseUrl.length === 0) {
+      const isApp = !!getClientConfig()?.isApp;
+      baseUrl = isApp ? OPENROUTER_BASE_URL : ApiPath.OpenRouter;
+    }
+
+    if (baseUrl.endsWith("/")) {
+      baseUrl = baseUrl.slice(0, baseUrl.length - 1);
+    }
+    if (
+      !baseUrl.startsWith("http") &&
+      !baseUrl.startsWith(ApiPath.OpenRouter)
+    ) {
+      baseUrl = "https://" + baseUrl;
+    }
+
+    console.log("[Proxy Endpoint] ", baseUrl, path);
+
+    // try rebuild url, when using cloudflare ai gateway in client
+    if (path.startsWith("/")) {
+      path = path.substring(1);
+    }
+    return cloudflareAIGatewayUrl([baseUrl, path].join("/"));
+  }
+
+  async extractMessage(res: any) {
+    if (res.error) {
+      return "```\n" + JSON.stringify(res, null, 4) + "\n```";
+    }
+    return res.choices?.at(0)?.message?.content ?? res;
+  }
+
+  async speech(options: SpeechOptions): Promise<ArrayBuffer> {
+    throw new Error("Method not implemented.");
+  }
+
+  async chat(options: ChatOptions) {
+    const modelConfig = {
+      ...useAppConfig.getState().modelConfig,
+      ...useChatStore.getState().currentSession().mask.modelConfig,
+      ...{
+        model: options.config.model,
+        providerName: options.config.providerName,
+      },
+    };
+
+    const visionModel = isVisionModel(options.config.model);
+    const messages: ChatOptions["messages"] = [];
+    for (const v of options.messages) {
+      const content = visionModel
+        ? await preProcessImageContent(v.content)
+        : getMessageTextContent(v);
+      messages.push({ role: v.role, content });
+    }
+
+    const requestPayload: RequestPayload = {
+      messages,
+      stream: options.config.stream,
+      model: modelConfig.model,
+      temperature: modelConfig.temperature,
+      presence_penalty: modelConfig.presence_penalty,
+      frequency_penalty: modelConfig.frequency_penalty,
+      top_p: modelConfig.top_p,
+    };
+
+    // 添加max_tokens参数
+    if (visionModel) {
+      requestPayload["max_tokens"] = Math.max(modelConfig.max_tokens, 4000);
+    }
+
+    console.log("[Request] openrouter payload: ", requestPayload);
+
+    const shouldStream = !!options.config.stream;
+    const controller = new AbortController();
+    options.onController?.(controller);
+
+    try {
+      const chatPath = this.path(OpenRouter.ChatPath);
+      if (shouldStream) {
+        let index = -1;
+        const [tools, funcs] = usePluginStore
+          .getState()
+          .getAsTools(
+            useChatStore.getState().currentSession().mask?.plugin || [],
+          );
+        streamWithThink(
+          chatPath,
+          requestPayload,
+          getHeaders(),
+          tools as any,
+          funcs,
+          controller,
+          // parseSSE
+          (text: string, runTools: ChatMessageTool[]) => {
+            const json = JSON.parse(text);
+            const choices = json.choices as Array<{
+              delta: {
+                content: string;
+                tool_calls: ChatMessageTool[];
+                reasoning_content: string | null;
+              };
+            }>;
+
+            if (!choices?.length) return { isThinking: false, content: "" };
+
+            const tool_calls = choices[0]?.delta?.tool_calls;
+            if (tool_calls?.length > 0) {
+              const id = tool_calls[0]?.id;
+              const args = tool_calls[0]?.function?.arguments;
+              if (id) {
+                index += 1;
+                runTools.push({
+                  id,
+                  type: tool_calls[0]?.type,
+                  function: {
+                    name: tool_calls[0]?.function?.name as string,
+                    arguments: args,
+                  },
+                });
+              } else {
+                // @ts-ignore
+                runTools[index]["function"]["arguments"] += args;
+              }
+            }
+
+            const reasoning = choices[0]?.delta?.reasoning_content;
+            const content = choices[0]?.delta?.content;
+
+            // Skip if both content and reasoning_content are empty or null
+            if (
+              (!reasoning || reasoning.length === 0) &&
+              (!content || content.length === 0)
+            ) {
+              return {
+                isThinking: false,
+                content: "",
+              };
+            }
+
+            if (reasoning && reasoning.length > 0) {
+              return {
+                isThinking: true,
+                content: reasoning,
+              };
+            } else if (content && content.length > 0) {
+              return {
+                isThinking: false,
+                content: content,
+              };
+            }
+
+            return {
+              isThinking: false,
+              content: "",
+            };
+          },
+          // processToolMessage, include tool_calls message and tool call results
+          (
+            requestPayload: RequestPayload,
+            toolCallMessage: any,
+            toolCallResult: any[],
+          ) => {
+            // reset index value
+            index = -1;
+            // @ts-ignore
+            requestPayload?.messages?.splice(
+              // @ts-ignore
+              requestPayload?.messages?.length,
+              0,
+              toolCallMessage,
+              ...toolCallResult,
+            );
+          },
+          options,
+        );
+      } else {
+        const chatPayload = {
+          method: "POST",
+          body: JSON.stringify(requestPayload),
+          signal: controller.signal,
+          headers: getHeaders(),
+        };
+
+        // make a fetch request
+        const requestTimeoutId = setTimeout(
+          () => controller.abort(),
+          getTimeoutMSByModel(options.config.model),
+        );
+
+        const res = await fetch(chatPath, chatPayload);
+        clearTimeout(requestTimeoutId);
+
+        const resJson = await res.json();
+        const message = await this.extractMessage(resJson);
+        options.onFinish(message, res);
+      }
+    } catch (e) {
+      console.log("[Request] failed to make a chat request", e);
+      options.onError?.(e as Error);
+    }
+  }
+
+  async usage() {
+    return {
+      used: 0,
+      total: 0,
+    } as LLMUsage;
+  }
+
+  async models(): Promise<LLMModel[]> {
+    const provider = {
+      id: "openrouter",
+      providerName: "OpenRouter",
+      providerType: "openrouter",
+      sorted: 1,
+    };
+
+    return [
+      {
+        name: "anthropic/claude-3.7-sonnet",
+        available: true,
+        provider,
+        sorted: 1,
+      },
+    ];
+  }
+}

app/components/emoji.tsx

@@ -64,11 +64,17 @@ export function Avatar(props: { model?: ModelType; avatar?: string }) {
       LlmIcon = BotIconGemini;
     } else if (modelName.startsWith("gemma")) {
       LlmIcon = BotIconGemma;
-    } else if (modelName.startsWith("claude")) {
+    } else if (
+      modelName.startsWith("claude") ||
+      modelName.startsWith("anthropic")
+    ) {
       LlmIcon = BotIconClaude;
     } else if (modelName.includes("llama")) {
       LlmIcon = BotIconMeta;
-    } else if (modelName.startsWith("mixtral") || modelName.startsWith("codestral")) {
+    } else if (
+      modelName.startsWith("mixtral") ||
+      modelName.startsWith("codestral")
+    ) {
       LlmIcon = BotIconMistral;
     } else if (modelName.includes("deepseek")) {
       LlmIcon = BotIconDeepseek;

app/components/settings.tsx

@@ -75,6 +75,7 @@ import {
   ChatGLM,
   DeepSeek,
   SiliconFlow,
+  OpenRouter,
 } from "../constant";
 import { Prompt, SearchService, usePromptStore } from "../store/prompt";
 import { ErrorBoundary } from "./error";
@@ -1458,6 +1459,48 @@ export function Settings() {
     </>
   );
 
+  const openRouterConfigComponent = accessStore.provider ===
+    ServiceProvider.OpenRouter && (
+    <>
+      <ListItem
+        title={Locale.Settings.Access.OpenRouter.Endpoint.Title}
+        subTitle={
+          Locale.Settings.Access.OpenRouter.Endpoint.SubTitle +
+          OpenRouter.ExampleEndpoint
+        }
+      >
+        <input
+          aria-label={Locale.Settings.Access.OpenRouter.Endpoint.Title}
+          type="text"
+          value={accessStore.openrouterUrl}
+          placeholder={OpenRouter.ExampleEndpoint}
+          onChange={(e) =>
+            accessStore.update(
+              (access) => (access.openrouterUrl = e.currentTarget.value),
+            )
+          }
+        ></input>
+      </ListItem>
+      <ListItem
+        title={Locale.Settings.Access.OpenRouter.ApiKey.Title}
+        subTitle={Locale.Settings.Access.OpenRouter.ApiKey.SubTitle}
+      >
+        <PasswordInput
+          aria={Locale.Settings.ShowPassword}
+          aria-label={Locale.Settings.Access.OpenRouter.ApiKey.Title}
+          value={accessStore.openrouterApiKey}
+          type="text"
+          placeholder={Locale.Settings.Access.OpenRouter.ApiKey.Placeholder}
+          onChange={(e) => {
+            accessStore.update(
+              (access) => (access.openrouterApiKey = e.currentTarget.value),
+            );
+          }}
+        />
+      </ListItem>
+    </>
+  );
+
   return (
     <ErrorBoundary>
       <div className="window-header" data-tauri-drag-region>
@@ -1822,6 +1865,7 @@ export function Settings() {
                   {XAIConfigComponent}
                   {chatglmConfigComponent}
                   {siliconflowConfigComponent}
+                  {openRouterConfigComponent}
                 </>
               )}
             </>

app/config/server.ts

@@ -88,6 +88,10 @@ declare global {
       SILICONFLOW_URL?: string;
       SILICONFLOW_API_KEY?: string;
 
+      // openrouter only
+      OPENROUTER_URL?: string;
+      OPENROUTER_API_KEY?: string;
+
       // custom template for preprocessing user input
       DEFAULT_INPUT_TEMPLATE?: string;
 
@@ -163,6 +167,7 @@ export const getServerSideConfig = () => {
   const isXAI = !!process.env.XAI_API_KEY;
   const isChatGLM = !!process.env.CHATGLM_API_KEY;
   const isSiliconFlow = !!process.env.SILICONFLOW_API_KEY;
+  const isOpenRouter = !!process.env.OPENROUTER_API_KEY;
   // const apiKeyEnvVar = process.env.OPENAI_API_KEY ?? "";
   // const apiKeys = apiKeyEnvVar.split(",").map((v) => v.trim());
   // const randomIndex = Math.floor(Math.random() * apiKeys.length);
@@ -246,6 +251,10 @@ export const getServerSideConfig = () => {
     siliconFlowUrl: process.env.SILICONFLOW_URL,
     siliconFlowApiKey: getApiKey(process.env.SILICONFLOW_API_KEY),
 
+    isOpenRouter,
+    openrouterUrl: process.env.OPENROUTER_URL,
+    openrouterApiKey: getApiKey(process.env.OPENROUTER_API_KEY),
+
     gtmId: process.env.GTM_ID,
     gaId: process.env.GA_ID || DEFAULT_GA_ID,
 

app/constant.ts

@@ -36,6 +36,8 @@ export const CHATGLM_BASE_URL = "https://open.bigmodel.cn";
 
 export const SILICONFLOW_BASE_URL = "https://api.siliconflow.cn";
 
+export const OPENROUTER_BASE_URL = "https://openrouter.ai/api";
+
 export const CACHE_URL_PREFIX = "/api/cache";
 export const UPLOAD_URL = `${CACHE_URL_PREFIX}/upload`;
 
@@ -72,6 +74,7 @@ export enum ApiPath {
   ChatGLM = "/api/chatglm",
   DeepSeek = "/api/deepseek",
   SiliconFlow = "/api/siliconflow",
+  OpenRouter = "/api/openrouter",
 }
 
 export enum SlotID {
@@ -130,6 +133,7 @@ export enum ServiceProvider {
   ChatGLM = "ChatGLM",
   DeepSeek = "DeepSeek",
   SiliconFlow = "SiliconFlow",
+  OpenRouter = "OpenRouter",
 }
 
 // Google API safety settings, see https://ai.google.dev/gemini-api/docs/safety-settings
@@ -156,6 +160,7 @@ export enum ModelProvider {
   ChatGLM = "ChatGLM",
   DeepSeek = "DeepSeek",
   SiliconFlow = "SiliconFlow",
+  OpenRouter = "OpenRouter",
 }
 
 export const Stability = {
@@ -266,6 +271,11 @@ export const SiliconFlow = {
   ListModelPath: "v1/models?&sub_type=chat",
 };
 
+export const OpenRouter = {
+  ExampleEndpoint: OPENROUTER_BASE_URL,
+  ChatPath: "v1/chat/completions",
+};
+
 export const DEFAULT_INPUT_TEMPLATE = `{{input}}`; // input / time / model / lang
 // export const DEFAULT_SYSTEM_TEMPLATE = `
 // You are ChatGPT, a large language model trained by {{ServiceProvider}}.
@@ -650,6 +660,10 @@ const siliconflowModels = [
   "Pro/deepseek-ai/DeepSeek-V3",
 ];
 
+const openrouterModels = [
+  "anthropic/claude-3.7-sonnet", // OpenRouter提供的模型过多，仅添加一个内置模型以免杂乱
+];
+
 let seq = 1000; // 内置的模型序号生成器从1000开始
 export const DEFAULT_MODELS = [
   ...openaiModels.map((name) => ({
@@ -806,6 +820,17 @@ export const DEFAULT_MODELS = [
       sorted: 14,
     },
   })),
+  ...openrouterModels.map((name) => ({
+    name,
+    available: true,
+    sorted: seq++,
+    provider: {
+      id: "openrouter",
+      providerName: "OpenRouter",
+      providerType: "openrouter",
+      sorted: 15,
+    },
+  })),
 ] as const;
 
 export const CHAT_PAGE_SIZE = 15;

app/locales/cn.ts

@@ -534,6 +534,17 @@ const cn = {
           SubTitle: "样例：",
         },
       },
+      OpenRouter: {
+        ApiKey: {
+          Title: "接口密钥",
+          SubTitle: "使用自定义OpenRouter API Key",
+          Placeholder: "OpenRouter API Key",
+        },
+        Endpoint: {
+          Title: "接口地址",
+          SubTitle: "样例：",
+        },
+      },
       CustomModel: {
         Title: "自定义模型名",
         SubTitle: "增加自定义模型可选项，使用英文逗号隔开",

app/locales/en.ts

@@ -543,6 +543,17 @@ const en: LocaleType = {
           SubTitle: "Select a safety filtering level",
         },
       },
+      OpenRouter: {
+        ApiKey: {
+          Title: "OpenRouter API Key",
+          SubTitle: "Use a custom OpenRouter API Key",
+          Placeholder: "OpenRouter API Key",
+        },
+        Endpoint: {
+          Title: "Endpoint Address",
+          SubTitle: "Example: ",
+        },
+      },
     },
 
     Model: "Model",

app/store/access.ts

@@ -17,6 +17,7 @@ import {
   XAI_BASE_URL,
   CHATGLM_BASE_URL,
   SILICONFLOW_BASE_URL,
+  OPENROUTER_BASE_URL,
 } from "../constant";
 import { getHeaders } from "../client/api";
 import { getClientConfig } from "../config/client";
@@ -59,6 +60,8 @@ const DEFAULT_SILICONFLOW_URL = isApp
   ? SILICONFLOW_BASE_URL
   : ApiPath.SiliconFlow;
 
+const DEFAULT_OPENROUTER_URL = isApp ? OPENROUTER_BASE_URL : ApiPath.OpenRouter;
+
 const DEFAULT_ACCESS_STATE = {
   accessCode: "",
   useCustomConfig: false,
@@ -132,6 +135,10 @@ const DEFAULT_ACCESS_STATE = {
   siliconflowUrl: DEFAULT_SILICONFLOW_URL,
   siliconflowApiKey: "",
 
+  // openrouter
+  openrouterUrl: DEFAULT_OPENROUTER_URL,
+  openrouterApiKey: "",
+
   // server config
   needCode: true,
   hideUserApiKey: false,
@@ -219,6 +226,10 @@ export const useAccessStore = createPersistStore(
       return ensure(get(), ["siliconflowApiKey"]);
     },
 
+    isValidOpenRouter() {
+      return ensure(get(), ["openrouterApiKey"]);
+    },
+
     isAuthorized() {
       this.fetch();
 
@@ -238,6 +249,7 @@ export const useAccessStore = createPersistStore(
         this.isValidXAI() ||
         this.isValidChatGLM() ||
         this.isValidSiliconFlow() ||
+        this.isValidOpenRouter() ||
         !this.enabledAccessControl() ||
         (this.enabledAccessControl() && ensure(get(), ["accessCode"]))
       );