feat(openrouter): add open router to model block

Author: icecrasher321

apps/sim/app/api/providers/openrouter/models/route.ts

@@ -0,0 +1,46 @@
+import { type NextRequest, NextResponse } from 'next/server'
+import { createLogger } from '@/lib/logs/console/logger'
+
+const logger = createLogger('OpenRouterModelsAPI')
+
+export const dynamic = 'force-dynamic'
+
+export async function GET(_request: NextRequest) {
+  try {
+    const response = await fetch('https://openrouter.ai/api/v1/models', {
+      headers: { 'Content-Type': 'application/json' },
+      cache: 'no-store',
+    })
+
+    if (!response.ok) {
+      logger.warn('Failed to fetch OpenRouter models', {
+        status: response.status,
+        statusText: response.statusText,
+      })
+      return NextResponse.json({ models: [] })
+    }
+
+    const data = await response.json()
+    const models = Array.isArray(data?.data)
+      ? Array.from(
+          new Set(
+            data.data
+              .map((m: any) => m?.id)
+              .filter((id: unknown): id is string => typeof id === 'string' && id.length > 0)
+              .map((id: string) => `openrouter/${id}`)
+          )
+        )
+      : []
+
+    logger.info('Successfully fetched OpenRouter models', {
+      count: models.length,
+    })
+
+    return NextResponse.json({ models })
+  } catch (error) {
+    logger.error('Error fetching OpenRouter models', {
+      error: error instanceof Error ? error.message : 'Unknown error',
+    })
+    return NextResponse.json({ models: [] })
+  }
+}

apps/sim/blocks/blocks/agent.ts

@@ -21,6 +21,7 @@ const getCurrentOllamaModels = () => {
 }
 
 import { useOllamaStore } from '@/stores/ollama/store'
+import { useOpenRouterStore } from '@/stores/openrouter/store'
 import type { ToolResponse } from '@/tools/types'
 
 const logger = createLogger('AgentBlock')
@@ -159,8 +160,9 @@ Create a system prompt appropriately detailed for the request, using clear langu
       required: true,
       options: () => {
         const ollamaModels = useOllamaStore.getState().models
+        const openrouterModels = useOpenRouterStore.getState().models
         const baseModels = Object.keys(getBaseModelProviders())
-        const allModels = [...baseModels, ...ollamaModels]
+        const allModels = Array.from(new Set([...baseModels, ...ollamaModels, ...openrouterModels]))
 
         return allModels.map((model) => {
           const icon = getProviderIcon(model)

apps/sim/providers/models.ts

@@ -62,6 +62,16 @@ export interface ProviderDefinition {
  * Comprehensive provider definitions, single source of truth
  */
 export const PROVIDER_DEFINITIONS: Record<string, ProviderDefinition> = {
+  openrouter: {
+    id: 'openrouter',
+    name: 'OpenRouter',
+    description: 'Unified access to many models via OpenRouter',
+    defaultModel: '',
+    modelPatterns: [/^openrouter\//],
+    // Use OpenAIIcon for now; can add a specific OpenRouter icon later
+    icon: OpenAIIcon,
+    models: [],
+  },
   openai: {
     id: 'openai',
     name: 'OpenAI',
@@ -859,6 +869,21 @@ export function updateOllamaModels(models: string[]): void {
   }))
 }
 
+/**
+ * Update OpenRouter models dynamically
+ */
+export function updateOpenRouterModels(models: string[]): void {
+  PROVIDER_DEFINITIONS.openrouter.models = models.map((modelId) => ({
+    id: modelId,
+    pricing: {
+      input: 0,
+      output: 0,
+      updatedAt: new Date().toISOString().split('T')[0],
+    },
+    capabilities: {},
+  }))
+}
+
 /**
  * Embedding model pricing - separate from chat models
  */