Communications

Communications

An index and topic collection covering Communications Platform as a Service (CPaaS) and messaging-and-voice infrastructure APIs. This network gathers providers offering programmable SMS, MMS, voice, video, transactional and marketing email, chat, push notifications, in-app messaging, and deliverability services. It includes leading CPaaS platforms (Twilio, Vonage, MessageBird/Bird, Sinch, Plivo, Bandwidth, Telnyx, Infobip), transactional email providers (SendGrid, Mailgun, Postmark, Resend, SparkPost, Mailjet, MailerSend, Mailtrap), video and real-time platforms (Agora, Daily.co, LiveKit, Zoom, Dolby), push and in-app messaging (OneSignal, Pusher, Ably, PubNub, Sendbird, Airship, CleverTap), and notification orchestration layers (Courier, Knock, Customer.io, Braze, Iterable). It is distinct from the Bots topic, which covers conversational scripting and chatbot frameworks.

handymanServices & Tools

handyman Ably code Repo link APIs.io
handyman Aircall code Repo link APIs.io
handyman Airship code Repo link APIs.io
handyman Amazon Pinpoint code Repo link APIs.io
handyman Amazon SES code Repo link APIs.io
handyman Amazon SNS code Repo link APIs.io
handyman api.video code Repo link APIs.io
handyman Bandwidth code Repo link APIs.io
handyman Braze code Repo link APIs.io
handyman CallRail code Repo link APIs.io
handyman CleverTap code Repo link APIs.io
handyman ClickSend SMS code Repo link APIs.io
handyman Courier code Repo link APIs.io
handyman Crisp code Repo link APIs.io
handyman Customer.io code Repo link APIs.io
handyman Daily.co code Repo link APIs.io
handyman Dialpad code Repo link APIs.io
handyman Dolby code Repo link APIs.io
handyman Iterable code Repo link APIs.io
handyman JustCall code Repo link APIs.io
handyman Klaviyo code Repo link APIs.io
handyman Knock code Repo link APIs.io
handyman LiveKit code Repo link APIs.io
handyman Loops code Repo link APIs.io
handyman Mailchimp code Repo link APIs.io
handyman MailerLite code Repo link APIs.io
handyman MailerSend code Repo link APIs.io
handyman Mailgun code Repo link APIs.io
handyman Mailjet code Repo link APIs.io
handyman Mailtrap code Repo link APIs.io
handyman MessageBird code Repo link APIs.io
handyman Mux code Repo link APIs.io
handyman OneSignal code Repo link APIs.io
handyman Plivo code Repo link APIs.io
handyman Postmark code Repo link APIs.io
handyman PubNub code Repo link APIs.io
handyman Pusher code Repo link APIs.io
handyman Resend code Repo link APIs.io
handyman RingCentral code Repo link APIs.io
handyman Sendbird code Repo link APIs.io
handyman SendGrid code Repo link APIs.io
handyman Sinch code Repo link APIs.io
handyman Stream code Repo link APIs.io
handyman Telesign code Repo link APIs.io
handyman Telnyx code Repo link APIs.io
handyman Twilio code Repo link APIs.io
handyman Vonage code Repo link APIs.io
handyman Zoom code Repo link APIs.io

extensionCommon Features

extensionProgrammable SMS, MMS, and Voice

CPaaS providers expose programmable APIs for sending and receiving SMS and MMS messages, placing and routing voice calls, and managing phone number inventory across the global PSTN.

extensionTransactional and Marketing Email

Email APIs handle high-volume transactional sends, marketing campaigns, template rendering, list management, and deliverability monitoring through ESP infrastructure.

extensionReal-Time Video and Audio

Video and real-time platforms expose APIs and SDKs for embedding live video calls, broadcasts, conferences, and low-latency audio rooms into applications.

extensionPush Notifications and In-App Messaging

Push providers deliver native iOS and Android push notifications, web push, and in-app messages at scale across FCM, APNs, and proprietary delivery infrastructure.

extensionRealtime Chat and Pub/Sub

Realtime APIs provide WebSocket-based pub/sub channels, chat rooms, presence, and message history for collaborative and social applications.

extensionNotification Orchestration and Multi-Channel Delivery

Orchestration platforms unify SMS, email, push, chat, and in-app channels behind a single API with templating, preference management, and routing logic.

extensionDeliverability and Reputation Management

Deliverability tooling covers IP warmup, SPF/DKIM/DMARC, bounce and spam handling, suppression lists, and engagement-based sender reputation analytics.

extensionNumber Provisioning and Verification

Communications APIs manage phone number purchase, porting, regulatory compliance, and verification flows like one-time passwords and silent network auth.

task_altUse Cases

task_altTwo-Factor Authentication and OTP Delivery

Applications use SMS, voice, and email APIs to deliver one-time passcodes and verification messages for login, signup, and high-risk action confirmation.

task_altTransactional Notifications

Platforms send order confirmations, shipping updates, password resets, and account alerts through email, SMS, and push APIs as part of core product workflows.

task_altCustomer Engagement Campaigns

Marketing teams orchestrate multi-channel email, SMS, and push campaigns using providers like Braze, Iterable, Customer.io, and Klaviyo to drive retention and lifecycle messaging.

task_altLive Video and Audio Embeds

Telehealth, education, and collaboration apps embed branded live video and audio experiences using Daily.co, Agora, LiveKit, Zoom SDKs, and Dolby.

task_altContact Center and Programmable Voice

Support and sales teams build programmable IVRs, click-to-call, call tracking, and conversational voice flows on Twilio, Vonage, Dialpad, and RingCentral.

task_altRealtime Chat and Social Features

Apps add direct messaging, group chat, presence, and live commenting using Sendbird, Stream, PubNub, Ably, and Pusher.

task_altOperational and Incident Alerting

Engineering and SRE teams page on-call staff and broadcast incident status via SMS, voice, push, and email through Knock, Courier, and CPaaS providers.

integration_instructionsIntegrations

integration_instructionsTwilio

Leading CPaaS provider offering programmable SMS, MMS, voice, video, email (via SendGrid), and verification APIs at global scale.

integration_instructionsVonage

CPaaS platform covering SMS, voice, video, verify, and conversation APIs across messaging channels including WhatsApp and Viber.

integration_instructionsSendGrid

Transactional and marketing email API owned by Twilio, handling high-volume sends, templates, and deliverability.

integration_instructionsMessageBird

Omnichannel CPaaS provider (Bird) offering SMS, voice, email, WhatsApp, and conversational messaging APIs across global carriers.

integration_instructionsSinch

Global CPaaS platform delivering SMS, voice, email (Mailgun, Mailjet), verification, and conversational messaging APIs.

integration_instructionsOneSignal

Push notification, in-app messaging, email, and SMS platform with a unified messaging API used by mobile and web applications.

integration_instructionsSendbird

In-app chat, messaging, and calls API powering customer support and social experiences inside mobile and web applications.

integration_instructionsDaily.co

WebRTC-based video and audio API for embedding live calls, broadcasts, and recording into web and mobile applications.

integration_instructionsMailgun

Transactional email and email validation API focused on deliverability for developers and high-volume senders.

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