Communication APIs

Simple HTTP-based pub/sub notification service for sending push notifications to phones and desktops.

Fully managed pub/sub messaging service by AWS for application-to-application and application-to-person messaging.

Bird omnichannel communications platform with SMS, voice, email, WhatsApp, and AI for global businesses.

Agora provides real-time voice and video communication APIs used by developers to build interactive live streaming, vid...

Ghanaian messaging and payments platform offering SMS, mobile money APIs, and super-app commerce for African businesses.

Integuru transforms any website into a reliable, real-time, low-latency API without RPA, processing millions of API cal...

Video conferencing infrastructure platform for building live audio-video experiences with interactive features.

Digital newsletter platform for K-12 educators with templates, analytics, and translation.

Real-time communication platform providing messaging, presence, and push notifications with global data stream network.

Real-time communications API platform for voice, messaging, video, wireless, and AI applications.

Stream provides APIs for building scalable chat messaging and activity feeds in applications, powering real-time commun...

Email, calendar, and contacts API platform for embedding communication features into applications.

Vonage is a cloud communications platform offering unified communications, contact center, and communication APIs for b...

Plivo provides cloud voice and messaging APIs for building IVR, call center, and communications applications at competi...

AI communication coach providing real-time feedback during online meetings on speaking skills.

Parent-teacher communication platform with messaging, events, and volunteer sign-ups.

K-12 family engagement software (now part of PowerSchool) focused on attendance interventions.

Indian CPaaS platform offering enterprise messaging, blockchain CPaaS, and fraud prevention.

Vonage provides cloud IVR, contact center, and communications APIs enabling businesses to build custom interactive voic...

Twilio is a cloud communications platform that provides APIs for SMS, voice, video, email, and WhatsApp messaging. It e...

Classroom and school community platform for teachers, students, and families with messaging and portfolios.

Omnichannel communications platform with SMS, WhatsApp, voice, email, and CPaaS for global enterprises.

Omnichannel communication platform formerly MessageBird providing messaging, voice, and email APIs.

Mass notification and messaging system from Finalsite for K-12 schools and higher education.

Classroom communication platform from SchoolMessenger (Intrado) for K-12 teachers and families.

Indian communication platform offering SMS, voice, email, and WhatsApp APIs for developers.

Brazilian CPaaS platform offering WhatsApp, SMS, and email for enterprise communications.

Daily is a WebRTC-based video and audio API platform for developers building real-time communication features into appl...

Indian CPaaS company providing enterprise SMS, voice, and chatbot services globally.

Universal notification library supporting 90+ notification services through a single unified interface.

AI public speaking and communication coach providing feedback on speech, tone, and delivery.

Self-hosted push notification service with Android app and web UI for sending and receiving messages.

SMS marketing and messaging platform providing API access for transactional and promotional messaging.

Cloud communications APIs for messaging, voice, video, verification, and conversational commerce.

Infobip's Indian operation offering omnichannel CPaaS for enterprise communication use cases.

AI public speaking coach providing feedback on presentation skills using speech analysis.

LINE's Korean enterprise unit providing messaging APIs, LINE Ads Platform, and official account tools for Korean and Ja...

Brazilian communications equipment and cloud platform for businesses and enterprises.

Customer communications cloud with SMS, voice, email, WhatsApp, and conversational messaging APIs.

Nigerian multichannel messaging API enabling African developers and businesses to send SMS, WhatsApp, voice, and email.

AI communication coach providing private, real-time feedback on presentations and conversations.

Community platform helping DevRel and community teams track, grow, and engage members across platforms.

Enterprise cloud communication platform offering SMS, voice, and verification APIs across global networks.

Vonage, an Ericsson company, provides cloud communications APIs and unified communications solutions enabling businesse...

Enterprise-grade cloud communications platform with voice, messaging, and 911 APIs built on their own network.

Nigerian messaging and verification APIs powering SMS, email, and WhatsApp communications for African businesses.