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All subcategories API Clients API Testing API Mocking API Documentation Authentication Tunneling & Debugging Email Payments Scheduling & Booking

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3 tools

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Freemium

Mailgun

Email · API Tools

Long-standing transactional email API for developers.

emailapitransactional

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Freemium

Mailtrap

Email · API Tools

Email sandbox that safely captures mail from dev and staging.

emailtestingsandbox

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Freemium

Resend

Email · API Tools

Developer-first email API with React Email templates.

emailapitransactional

Open Website Details