EXPLORE A CATEGORY
Communications APIs
Choose a communication API around delivery intent and operational follow-through. Transactional email, customer notifications, and programmable messaging each have their own configuration and delivery lifecycle. Plan how an application will authenticate, receive delivery events, handle duplicate requests, and respect the permissions associated with the intended channel. Assess provider documentation using the messages your product actually needs to send.
Provider guides
Review the capabilities, then assess the fit for your own workflow.
TW
Twilio
Integrate messaging, voice calls, and phone workflows through communications APIs.
RE
Resend
Send application emails and connect delivery activity to backend workflows.
Build your evaluation around a real task. Define a representative input, an acceptable output, and the conditions under which the integration needs to work. Record unanswered questions and confirm them in the provider’s documentation before expanding the implementation.


