chore: import upstream snapshot with attribution

apps/sim/tools/millionverifier/get_credits.ts

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+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' },
+  },
+}

apps/sim/tools/millionverifier/hosting.ts

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+import type { ToolHostingConfig } from '@/tools/types'
+
+/**
+ * Env var prefix for MillionVerifier hosted keys. Provide keys as
+ * `MILLIONVERIFIER_API_KEY_COUNT` plus `MILLIONVERIFIER_API_KEY_1..N`.
+ */
+export const MILLIONVERIFIER_API_KEY_PREFIX = 'MILLIONVERIFIER_API_KEY'
+
+/**
+ * Dollar cost of a single MillionVerifier verification credit. MillionVerifier
+ * charges one credit per email checked; estimated from the bulk credit plans
+ * (≈ $0.0012/credit at volume) — https://millionverifier.com/pricing.
+ */
+export const MILLIONVERIFIER_CREDIT_USD = 0.0012
+
+/**
+ * Build a MillionVerifier `hosting` config. `getCredits` returns the number of
+ * verification credits the call consumed (one per checked email).
+ */
+export function millionverifierHosting<P>(
+  getCredits: (params: P, output: Record<string, unknown>) => number
+): ToolHostingConfig<P> {
+  return {
+    envKeyPrefix: MILLIONVERIFIER_API_KEY_PREFIX,
+    apiKeyParam: 'apiKey',
+    byokProviderId: 'millionverifier',
+    pricing: {
+      type: 'custom',
+      getCost: (params, output) => {
+        const credits = getCredits(params, output)
+        return { cost: credits * MILLIONVERIFIER_CREDIT_USD, metadata: { credits } }
+      },
+    },
+    rateLimit: {
+      mode: 'per_request',
+      // MillionVerifier caps the real-time API at 160/sec per account (~9.6k/min);
+      // 20/sec per workspace stays well under while keeping enrichment fast.
+      requestsPerMinute: 1200,
+    },
+  }
+}

apps/sim/tools/millionverifier/index.ts

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+export * from './types'
+
+import { getCreditsTool } from '@/tools/millionverifier/get_credits'
+import { verifyEmailTool } from '@/tools/millionverifier/verify_email'
+
+export const millionverifierVerifyEmailTool = verifyEmailTool
+export const millionverifierGetCreditsTool = getCreditsTool

apps/sim/tools/millionverifier/types.ts

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+import type { ToolResponse } from '@/tools/types'
+
+export interface MillionVerifierVerifyEmailParams {
+  email: string
+  apiKey: string
+}
+
+export interface MillionVerifierVerifyEmailResponse extends ToolResponse {
+  output: {
+    email: string
+    status: string
+    deliverable: boolean
+    freeEmail?: boolean
+    roleAccount?: boolean
+    didYouMean?: string
+    subResult?: string
+  }
+}
+
+export interface MillionVerifierGetCreditsParams {
+  apiKey: string
+}
+
+export interface MillionVerifierGetCreditsResponse extends ToolResponse {
+  output: {
+    credits: number
+  }
+}
+
+export type MillionVerifierResponse =
+  | MillionVerifierVerifyEmailResponse
+  | MillionVerifierGetCreditsResponse

apps/sim/tools/millionverifier/verify_email.ts

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+import { millionverifierHosting } from '@/tools/millionverifier/hosting'
+import type {
+  MillionVerifierVerifyEmailParams,
+  MillionVerifierVerifyEmailResponse,
+} from '@/tools/millionverifier/types'
+import type { ToolConfig } from '@/tools/types'
+
+/** Maps a MillionVerifier `result` to the shared verification vocabulary. */
+const STATUS_MAP: Record<string, string> = {
+  ok: 'valid',
+  invalid: 'invalid',
+  catch_all: 'catch_all',
+  disposable: 'disposable',
+  unknown: 'unknown',
+  unverified: 'unverified',
+}
+
+export const verifyEmailTool: ToolConfig<
+  MillionVerifierVerifyEmailParams,
+  MillionVerifierVerifyEmailResponse
+> = {
+  id: 'millionverifier_verify_email',
+  name: 'MillionVerifier Verify Email',
+  description: 'Verify the deliverability of an email address. Uses one verification credit.',
+  version: '1.0.0',
+
+  hosting: millionverifierHosting<MillionVerifierVerifyEmailParams>(() => {
+    // Each verification consumes one MillionVerifier credit.
+    return 1
+  }),
+
+  params: {
+    email: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'Email address to verify (e.g., john@example.com)',
+    },
+    apiKey: {
+      type: 'string',
+      required: true,
+      visibility: 'user-only',
+      description: 'MillionVerifier API Key',
+    },
+  },
+
+  request: {
+    url: (params) =>
+      `https://api.millionverifier.com/api/v3/?api=${encodeURIComponent(
+        params.apiKey.trim()
+      )}&email=${encodeURIComponent(params.email.trim())}&timeout=10`,
+    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: { email: '', status: '', deliverable: false },
+      }
+    }
+    const result = String(data.result ?? '')
+    return {
+      success: true,
+      output: {
+        email: data.email ?? '',
+        status: STATUS_MAP[result] ?? result,
+        deliverable: result === 'ok',
+        freeEmail: data.free ?? false,
+        roleAccount: data.role ?? false,
+        didYouMean: data.didyoumean ?? '',
+        subResult: data.subresult ?? '',
+      },
+    }
+  },
+
+  outputs: {
+    email: { type: 'string', description: 'The verified email address' },
+    status: {
+      type: 'string',
+      description:
+        'Verification status (valid, invalid, catch_all, disposable, unknown, unverified)',
+    },
+    deliverable: {
+      type: 'boolean',
+      description: 'Whether the email is valid and safe to send',
+    },
+    freeEmail: {
+      type: 'boolean',
+      description: 'Whether the address is on a free email provider',
+      optional: true,
+    },
+    roleAccount: {
+      type: 'boolean',
+      description: 'Whether the address is a role account (e.g., info@, sales@)',
+      optional: true,
+    },
+    didYouMean: {
+      type: 'string',
+      description: 'Suggested correction for a likely typo',
+      optional: true,
+    },
+    subResult: {
+      type: 'string',
+      description: 'Additional MillionVerifier classification detail',
+      optional: true,
+    },
+  },
+}