feat(tools): add Presend email verify tool

apps/sim/tools/presend/email_verify.ts

@@ -0,0 +1,96 @@
+import type { PresendEmailVerifyParams, PresendEmailVerifyResponse } from '@/tools/presend/types'
+import type { ToolConfig } from '@/tools/types'
+
+export const emailVerifyTool: ToolConfig<PresendEmailVerifyParams, PresendEmailVerifyResponse> = {
+  id: 'presend_email_verify',
+  name: 'Presend Email Verify',
+  description:
+    'Free, no-signup, no-key single-address email verification: syntax, MX record, disposable-domain, and role-account checks in one call.',
+  version: '1.0.0',
+
+  params: {
+    email: {
+      type: 'string',
+      required: true,
+      visibility: 'user-or-llm',
+      description: 'The email address to verify',
+    },
+  },
+
+  request: {
+    url: (params) => {
+      const url = new URL('https://presend.pages.dev/api/email-verify')
+      url.searchParams.append('email', params.email)
+
+      return url.toString()
+    },
+    method: 'GET',
+    headers: () => ({
+      'Content-Type': 'application/json',
+    }),
+  },
+
+  transformResponse: async (response: Response) => {
+    const data = await response.json()
+
+    return {
+      success: true,
+      output: {
+        email: data?.email ?? '',
+        valid: data?.valid ?? null,
+        syntaxValid: data?.syntax_valid ?? false,
+        domain: data?.domain ?? '',
+        mxFound: data?.has_mx ?? null,
+        mxCount: data?.mx_count ?? 0,
+        disposable: data?.disposable ?? false,
+        roleAccount: data?.role_account ?? false,
+        reason: data?.reason ?? null,
+      },
+    }
+  },
+
+  outputs: {
+    email: {
+      type: 'string',
+      description: 'The verified email address',
+    },
+    valid: {
+      type: 'boolean',
+      description:
+        'Whether the email address is valid overall. Null if it could not be checked (e.g. MX lookup failed); retry later',
+      nullable: true,
+    },
+    syntaxValid: {
+      type: 'boolean',
+      description: 'Whether the email address is correctly formatted (RFC syntax)',
+    },
+    domain: {
+      type: 'string',
+      description: 'The domain part of the email address',
+    },
+    mxFound: {
+      type: 'boolean',
+      description:
+        "Whether the domain's MX records were found. Null if the MX lookup itself failed",
+      nullable: true,
+    },
+    mxCount: {
+      type: 'number',
+      description: 'Number of MX records found for the domain',
+    },
+    disposable: {
+      type: 'boolean',
+      description: 'Whether the email uses a disposable/temporary domain',
+    },
+    roleAccount: {
+      type: 'boolean',
+      description: 'Whether the address is a role account (e.g. info@, support@)',
+    },
+    reason: {
+      type: 'string',
+      description:
+        'Why the address is not valid: invalid_syntax, no_mx_record, disposable_domain, or mx_lookup_failed. Null when the address is valid',
+      nullable: true,
+    },
+  },
+}

apps/sim/tools/presend/index.ts

@@ -0,0 +1,3 @@
+import { emailVerifyTool } from '@/tools/presend/email_verify'
+
+export const presendEmailVerifyTool = emailVerifyTool

apps/sim/tools/presend/types.ts

@@ -0,0 +1,24 @@
+import type { ToolResponse } from '@/tools/types'
+
+/** Parameters for the Presend email verify tool. */
+export interface PresendEmailVerifyParams {
+  email: string
+}
+
+/** Response from the Presend email verify tool. */
+export interface PresendEmailVerifyResponse extends ToolResponse {
+  output: {
+    email: string
+    /** `null` when the address could not be checked (e.g. MX lookup failed); retry later. */
+    valid: boolean | null
+    syntaxValid: boolean
+    domain: string
+    /** `null` when the MX lookup itself failed. */
+    mxFound: boolean | null
+    mxCount: number
+    disposable: boolean
+    roleAccount: boolean
+    /** One of `invalid_syntax`, `no_mx_record`, `disposable_domain`, `mx_lookup_failed`, or `null` when valid. */
+    reason: string | null
+  }
+}

apps/sim/tools/registry.ts

@@ -3805,6 +3805,7 @@ import {
   posthogUpdatePropertyDefinitionTool,
   posthogUpdateSurveyTool,
 } from '@/tools/posthog'
+import { presendEmailVerifyTool } from '@/tools/presend'
 import {
   profoundBotLogsTool,
   profoundBotsReportTool,
@@ -10847,6 +10848,7 @@ export const tools: Record<string, ExecutableToolConfig> = {
   hunter_email_verifier: hunterEmailVerifierTool,
   hunter_companies_find: hunterCompaniesFindTool,
   hunter_email_count: hunterEmailCountTool,
+  presend_email_verify: presendEmailVerifyTool,
   prospeo_account_information: prospeoAccountInformationTool,
   prospeo_enrich_person: prospeoEnrichPersonTool,
   prospeo_enrich_company: prospeoEnrichCompanyTool,