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NumRadar vs SendGrid
SendGrid is an email delivery service, unrelated to phone number validation.
NumRadarWhatsApp number validation via API, bulk tools and AI agents
SendGridEmail delivery API and marketing emailWhich to pick
Pick NumRadar if you want…
- WhatsApp registration checks for bulk contacts
Pick SendGrid if you want…
- Scalable email API and marketing tools
- Transactional email delivery
Side by side
- What it is
- NumRadar:NumRadar validates if phone numbers are registered on WhatsApp via API, bulk upload, AI agents, or Chrome extension.
- SendGrid:SendGrid provides an email API, SMTP service, and marketing campaign tools for sending transactional and bulk email at scale.
- Best for
- NumRadar:WhatsApp registration checks for bulk contacts
- SendGrid:Scalable email API and marketing tools
- Who it’s for
- NumRadar:Developers and teams needing WhatsApp registration status for outreach campaigns.
- SendGrid:Developers and marketers needing reliable email delivery and campaign management
- Pricing
- NumRadar:Paid
- SendGrid:Contact sales
- Works with
- NumRadar:—
- SendGrid:Twilio
NumRadar features
- REST API. Check a single number in real-time and receive JSON with WhatsApp status.
- Bulk CSV Upload. Upload a spreadsheet, deduplicate, and get registration results for up to 5-300k numbers per month.
- AI Agent Integration (MCP). Connect through MCP to let agents like Claude or Cursor query numbers in bulk.
- Chrome Extension. Highlight numbers on any web page and instantly see WhatsApp registration.
- Automatic Result Notifications. Growth, Business and Enterprise plans receive webhook notifications of completed checks.
- Unused Checks Carry Over. Unused validations are kept for one extra month on paid plans.
SendGrid features
- Email API. Send transactional and bulk email via a RESTful API with high deliverability.
- SMTP Service. Integrate traditional SMTP for sending email from existing systems.
- Marketing Campaigns. Create, schedule, and track email marketing campaigns with flexible tools.
- Documentation. Comprehensive guides and reference docs for quick integration.
- Help Center. AI-assisted support for troubleshooting and questions.
- Partner Ecosystem. Access partners for deliverability optimization and custom solutions.
NumRadar vs SendGrid FAQ
Is NumRadar or SendGrid free?+
NumRadar is paid.
On DevHunt
Based on each tool's website and DevHunt data. Details may change; check the official sites.