Add automatic model discovery from configured external providers

chat/server.js

@@ -7492,6 +7492,125 @@ function runCommand(command, args, options = {}) {
   });
 }
 
+
+// Fetch models from OpenRouter API when API key is configured
+async function fetchOpenRouterModels() {
+  if (!OPENROUTER_API_KEY) return [];
+  try {
+    const res = await fetch('https://openrouter.ai/api/v1/models', {
+      headers: { 'Authorization': `Bearer ${OPENROUTER_API_KEY}` }
+    });
+    if (!res.ok) {
+      log('OpenRouter models fetch failed', { status: res.status });
+      return [];
+    }
+    const data = await res.json();
+    const models = Array.isArray(data?.data) ? data.data : [];
+    return models.map((m) => ({
+      name: m.id || m.name,
+      label: `${m.id || m.name} (OpenRouter)`,
+      provider: 'openrouter'
+    })).filter((m) => m.name);
+  } catch (error) {
+    log('OpenRouter models fetch error', { error: String(error) });
+    return [];
+  }
+}
+
+// Fetch models from Mistral API when API key is configured
+async function fetchMistralModels() {
+  if (!MISTRAL_API_KEY) return [];
+  try {
+    const res = await fetch('https://api.mistral.ai/v1/models', {
+      headers: { 'Authorization': `Bearer ${MISTRAL_API_KEY}` }
+    });
+    if (!res.ok) {
+      log('Mistral models fetch failed', { status: res.status });
+      return [];
+    }
+    const data = await res.json();
+    const models = Array.isArray(data?.data) ? data.data : [];
+    return models.map((m) => ({
+      name: m.id || m.name,
+      label: `${m.id || m.name} (Mistral)`,
+      provider: 'mistral'
+    })).filter((m) => m.name);
+  } catch (error) {
+    log('Mistral models fetch error', { error: String(error) });
+    return [];
+  }
+}
+
+// Fetch models from Groq API when API key is configured
+async function fetchGroqModels() {
+  if (!GROQ_API_KEY) return [];
+  try {
+    const res = await fetch('https://api.groq.com/openai/v1/models', {
+      headers: { 'Authorization': `Bearer ${GROQ_API_KEY}` }
+    });
+    if (!res.ok) {
+      log('Groq models fetch failed', { status: res.status });
+      return [];
+    }
+    const data = await res.json();
+    const models = Array.isArray(data?.data) ? data.data : [];
+    return models.map((m) => ({
+      name: m.id || m.name,
+      label: `${m.id || m.name} (Groq)`,
+      provider: 'groq'
+    })).filter((m) => m.name);
+  } catch (error) {
+    log('Groq models fetch error', { error: String(error) });
+    return [];
+  }
+}
+
+// Fetch models from Google Gemini API when API key is configured
+async function fetchGoogleModels() {
+  if (!GOOGLE_API_KEY) return [];
+  try {
+    const res = await fetch(`https://generativelanguage.googleapis.com/v1beta/models?key=${GOOGLE_API_KEY}`);
+    if (!res.ok) {
+      log('Google models fetch failed', { status: res.status });
+      return [];
+    }
+    const data = await res.json();
+    const models = Array.isArray(data?.models) ? data.models : [];
+    return models.map((m) => ({
+      name: m.name || m.id,
+      label: `${m.name || m.id} (Google)`,
+      provider: 'google'
+    })).filter((m) => m.name);
+  } catch (error) {
+    log('Google models fetch error', { error: String(error) });
+    return [];
+  }
+}
+
+// Fetch models from NVIDIA API when API key is configured
+async function fetchNvidiaModels() {
+  if (!NVIDIA_API_KEY) return [];
+  try {
+    const res = await fetch('https://integrate.api.nvidia.com/v1/models', {
+      headers: { 'Authorization': `Bearer ${NVIDIA_API_KEY}` }
+    });
+    if (!res.ok) {
+      log('NVIDIA models fetch failed', { status: res.status });
+      return [];
+    }
+    const data = await res.json();
+    const models = Array.isArray(data?.data) ? data.data : [];
+    return models.map((m) => ({
+      name: m.id || m.name,
+      label: `${m.id || m.name} (NVIDIA)`,
+      provider: 'nvidia'
+    })).filter((m) => m.name);
+  } catch (error) {
+    log('NVIDIA models fetch error', { error: String(error) });
+    return [];
+  }
+}
+
 async function listModels(cliName = 'opencode') {
   const now = Date.now();
   const normalizedCli = normalizeCli(cliName);
@@ -7572,12 +7691,27 @@ async function listModels(cliName = 'opencode') {
     }
   }
 
+  // Fetch models from configured external providers
+  const externalProviderFetches = [
+    fetchOpenRouterModels(),
+    fetchMistralModels(),
+    fetchGroqModels(),
+    fetchGoogleModels(),
+    fetchNvidiaModels()
+  ];
+
+  const externalResults = await Promise.allSettled(externalProviderFetches);
+  for (const result of externalResults) {
+    if (result.status === 'fulfilled' && Array.isArray(result.value)) {
+      result.value.forEach((m) => addModel(m));
+    }
+  }
+
   // Add fallback models per CLI
   const fallbackModels = {
     opencode: [],
   };
 
-
   // Add models from OPENCODE_EXTRA_MODELS env var
   if (process.env.OPENCODE_EXTRA_MODELS) {
     const extras = process.env.OPENCODE_EXTRA_MODELS.split(',').map((s) => s.trim()).filter(Boolean);