chore: import upstream snapshot with attribution

apps/sim/tools/millionverifier/get_credits.ts

@@ -0,0 +1,56 @@
+import type {
+  MillionVerifierGetCreditsParams,
+  MillionVerifierGetCreditsResponse,
+} from '@/tools/millionverifier/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const getCreditsTool: ToolConfig<
+  MillionVerifierGetCreditsParams,
+  MillionVerifierGetCreditsResponse
+> = {
+  id: 'millionverifier_get_credits',
+  name: 'MillionVerifier Get Credits',
+  description: 'Retrieve the remaining verification credits for the authenticated account.',
+  version: '1.0.0',
+
+  params: {
+    apiKey: {
+      type: 'string',
+      required: true,
+      visibility: 'user-only',
+      description: 'MillionVerifier API Key',
+    },
+  },
+
+  request: {
+    url: (params) =>
+      `https://api.millionverifier.com/api/v3/credits?api=${encodeURIComponent(params.apiKey.trim())}`,
+    method: 'GET',
+    headers: () => ({ Accept: 'application/json' }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json().catch(() => ({}))
+    const errorMessage =
+      typeof data === 'object' && data !== null && typeof data.error === 'string' ? data.error : ''
+    if (!response.ok || errorMessage.length > 0) {
+      return {
+        success: false,
+        error:
+          errorMessage || `MillionVerifier API error: ${response.status} ${response.statusText}`,
+        output: { credits: 0 },
+      }
+    }
+    // The credits endpoint may return either `{ credits }` or a bare number.
+    const raw = typeof data === 'number' ? data : (data.credits ?? 0)
+    const credits = Number(raw)
+    return {
+      success: true,
+      output: { credits: Number.isNaN(credits) ? 0 : credits },
+    }
+  },
+
+  outputs: {
+    credits: { type: 'number', description: 'Remaining verification credits' },
+  },
+}