diff --git a/src/commands/auth-choice.apply.quotio.ts b/src/commands/auth-choice.apply.quotio.ts
index 64b1fbbb7..601da3506 100644
--- a/src/commands/auth-choice.apply.quotio.ts
+++ b/src/commands/auth-choice.apply.quotio.ts
@@ -7,6 +7,7 @@ import { applyAuthProfileConfig } from "./onboard-auth.js";
 
 const QUOTIO_DEFAULT_BASE_URL = "http://127.0.0.1:18317/v1";
 const QUOTIO_DEFAULT_API_KEY = "quotio-local";
+const QUOTIO_PROBE_TIMEOUT_MS = 3000;
 
 type QuotioModel = {
   id: string;
@@ -20,6 +21,86 @@ type QuotioModelsResponse = {
   data: QuotioModel[];
 };
 
+type QuotioDetectionResult = {
+  baseUrl: string;
+  apiKey: string;
+  models: QuotioModel[];
+  autoDetected: boolean;
+};
+
+function getEnvQuotioConfig(): { baseUrl?: string; apiKey?: string } {
+  return {
+    baseUrl: process.env.QUOTIO_BASE_URL || process.env.QUOTIO_URL,
+    apiKey: process.env.QUOTIO_API_KEY || process.env.QUOTIO_KEY,
+  };
+}
+
+async function probeQuotioEndpoint(
+  baseUrl: string,
+  apiKey: string,
+  timeoutMs: number = QUOTIO_PROBE_TIMEOUT_MS,
+): Promise<{ ok: boolean; models: QuotioModel[] }> {
+  try {
+    const modelsUrl = baseUrl.endsWith("/") ? `${baseUrl}models` : `${baseUrl}/models`;
+    const headers: Record<string, string> = { "Content-Type": "application/json" };
+    if (apiKey) {
+      headers["Authorization"] = `Bearer ${apiKey}`;
+    }
+
+    const response = await fetch(modelsUrl, {
+      headers,
+      signal: AbortSignal.timeout(timeoutMs),
+    });
+
+    if (!response.ok) {
+      return { ok: false, models: [] };
+    }
+
+    const data = (await response.json()) as QuotioModelsResponse;
+    if (!data.data || !Array.isArray(data.data) || data.data.length === 0) {
+      return { ok: false, models: [] };
+    }
+
+    return { ok: true, models: data.data };
+  } catch {
+    return { ok: false, models: [] };
+  }
+}
+
+async function autoDetectQuotio(): Promise<QuotioDetectionResult | null> {
+  const env = getEnvQuotioConfig();
+
+  const baseUrl = env.baseUrl || QUOTIO_DEFAULT_BASE_URL;
+  const apiKey = env.apiKey || QUOTIO_DEFAULT_API_KEY;
+
+  const result = await probeQuotioEndpoint(baseUrl, apiKey);
+  if (result.ok) {
+    return {
+      baseUrl,
+      apiKey,
+      models: result.models,
+      autoDetected: true,
+    };
+  }
+
+  if (env.baseUrl || env.apiKey) {
+    const defaultResult = await probeQuotioEndpoint(
+      QUOTIO_DEFAULT_BASE_URL,
+      QUOTIO_DEFAULT_API_KEY,
+    );
+    if (defaultResult.ok) {
+      return {
+        baseUrl: QUOTIO_DEFAULT_BASE_URL,
+        apiKey: QUOTIO_DEFAULT_API_KEY,
+        models: defaultResult.models,
+        autoDetected: true,
+      };
+    }
+  }
+
+  return null;
+}
+
 async function discoverQuotioModels(
   baseUrl: string,
   apiKey: string,
@@ -112,15 +193,111 @@ export async function applyAuthChoiceQuotio(
   let nextConfig = params.config;
   const agentDir = params.agentDir ?? resolveClawdbotAgentDir();
 
-  await params.prompter.note(
-    [
-      "Quotio is a local OpenAI-compatible proxy that routes to various AI models.",
-      "Make sure Quotio is running before continuing.",
-      "Default endpoint: http://127.0.0.1:18317/v1",
-    ].join("\n"),
-    "Quotio",
-  );
+  await params.prompter.note("Detecting Quotio...", "Auto-detection");
 
+  const detected = await autoDetectQuotio();
+
+  let finalBaseUrl: string;
+  let finalApiKey: string;
+  let discoveredModels: QuotioModel[];
+
+  if (detected) {
+    await params.prompter.note(
+      `Found Quotio at ${detected.baseUrl} with ${detected.models.length} model(s).`,
+      "Auto-detected",
+    );
+
+    const useDetected = await params.prompter.confirm({
+      message: `Use detected configuration? (${detected.baseUrl})`,
+      initialValue: true,
+    });
+
+    if (useDetected) {
+      finalBaseUrl = detected.baseUrl;
+      finalApiKey = detected.apiKey;
+      discoveredModels = detected.models;
+    } else {
+      const manualConfig = await promptManualConfig(params);
+      if (!manualConfig) return { config: params.config };
+      finalBaseUrl = manualConfig.baseUrl;
+      finalApiKey = manualConfig.apiKey;
+      discoveredModels = manualConfig.models;
+    }
+  } else {
+    await params.prompter.note(
+      [
+        "Could not auto-detect Quotio.",
+        "Make sure Quotio is running, or configure manually.",
+        "Tip: Set QUOTIO_BASE_URL and QUOTIO_API_KEY environment variables for auto-detection.",
+      ].join("\n"),
+      "Not detected",
+    );
+
+    const manualConfig = await promptManualConfig(params);
+    if (!manualConfig) return { config: params.config };
+    finalBaseUrl = manualConfig.baseUrl;
+    finalApiKey = manualConfig.apiKey;
+    discoveredModels = manualConfig.models;
+  }
+
+  if (discoveredModels.length === 0) {
+    await params.prompter.note(
+      "No models found. Please check your Quotio configuration.",
+      "Setup Failed",
+    );
+    return { config: params.config };
+  }
+
+  const modelOptions = discoveredModels.map((m) => ({
+    value: m.id,
+    label: m.id,
+    hint: m.owned_by ? `by ${m.owned_by}` : undefined,
+  }));
+
+  const selectedModelId = await params.prompter.select({
+    message: "Select default model",
+    options: modelOptions,
+  });
+
+  const modelDefinitions = discoveredModels.map(buildModelDefinition);
+  const defaultModelRef = `quotio/${String(selectedModelId)}`;
+
+  upsertAuthProfile({
+    profileId: "quotio:default",
+    credential: {
+      type: "api_key",
+      provider: "quotio",
+      key: finalApiKey,
+    },
+    agentDir,
+  });
+
+  nextConfig = applyAuthProfileConfig(nextConfig, {
+    profileId: "quotio:default",
+    provider: "quotio",
+    mode: "api_key",
+  });
+
+  nextConfig = applyQuotioProviderConfig(nextConfig, finalBaseUrl, finalApiKey, modelDefinitions);
+
+  let agentModelOverride: string | undefined;
+  if (params.setDefaultModel) {
+    nextConfig = applyQuotioDefaultModel(nextConfig, defaultModelRef);
+    await params.prompter.note(`Default model set to ${defaultModelRef}`, "Model configured");
+  } else if (params.agentId) {
+    agentModelOverride = defaultModelRef;
+    await params.prompter.note(
+      `Default model set to ${defaultModelRef} for agent "${params.agentId}".`,
+      "Model configured",
+    );
+  }
+
+  return { config: nextConfig, agentModelOverride };
+}
+
+async function promptManualConfig(
+  params: ApplyAuthChoiceParams,
+): Promise<{ baseUrl: string; apiKey: string; models: QuotioModel[] } | null> {
   const baseUrl = await params.prompter.text({
     message: "Enter Quotio base URL",
     initialValue: QUOTIO_DEFAULT_BASE_URL,
@@ -145,74 +322,15 @@ export async function applyAuthChoiceQuotio(
 
   await params.prompter.note("Discovering available models from Quotio...", "Connecting");
 
-  const { models: discoveredModels, error } = await discoverQuotioModels(
-    normalizedBaseUrl,
-    normalizedApiKey,
-  );
+  const { models, error } = await discoverQuotioModels(normalizedBaseUrl, normalizedApiKey);
 
-  if (error || discoveredModels.length === 0) {
+  if (error) {
     await params.prompter.note(
-      error
-        ? `Could not fetch models: ${error}\nPlease ensure Quotio is running and try again.`
-        : "No models found. Please check your Quotio configuration.",
+      `Could not fetch models: ${error}\nPlease ensure Quotio is running and try again.`,
       "Discovery Failed",
     );
-    return { config: params.config };
+    return null;
   }
 
-  await params.prompter.note(
-    `Found ${discoveredModels.length} model(s) available.`,
-    "Discovery Complete",
-  );
-
-  const modelOptions = discoveredModels.map((m) => ({
-    value: m.id,
-    label: m.id,
-    hint: m.owned_by ? `by ${m.owned_by}` : undefined,
-  }));
-
-  const selectedModelId = await params.prompter.select({
-    message: "Select default model",
-    options: modelOptions,
-  });
-
-  const modelDefinitions = discoveredModels.map(buildModelDefinition);
-  const defaultModelRef = `quotio/${String(selectedModelId)}`;
-
-  upsertAuthProfile({
-    profileId: "quotio:default",
-    credential: {
-      type: "api_key",
-      provider: "quotio",
-      key: normalizedApiKey,
-    },
-    agentDir,
-  });
-
-  nextConfig = applyAuthProfileConfig(nextConfig, {
-    profileId: "quotio:default",
-    provider: "quotio",
-    mode: "api_key",
-  });
-
-  nextConfig = applyQuotioProviderConfig(
-    nextConfig,
-    normalizedBaseUrl,
-    normalizedApiKey,
-    modelDefinitions,
-  );
-
-  let agentModelOverride: string | undefined;
-  if (params.setDefaultModel) {
-    nextConfig = applyQuotioDefaultModel(nextConfig, defaultModelRef);
-    await params.prompter.note(`Default model set to ${defaultModelRef}`, "Model configured");
-  } else if (params.agentId) {
-    agentModelOverride = defaultModelRef;
-    await params.prompter.note(
-      `Default model set to ${defaultModelRef} for agent "${params.agentId}".`,
-      "Model configured",
-    );
-  }
-
-  return { config: nextConfig, agentModelOverride };
+  return { baseUrl: normalizedBaseUrl, apiKey: normalizedApiKey, models };
 }