FusionAuth
FusionAuth is a modern, developer-focused identity and access management platform built to give you full control over your authentication stack. Whether you’re building a startup app or managing enterprise-scale infrastructure, FusionAuth delivers all the must-have features — from login and SSO to advanced protocols like OAuth2, OIDC, SAML, and WebAuthn — in a self-hostable or cloud-native package.
Designed with developers in mind, FusionAuth integrates seamlessly with any language, framework, or architecture. Every capability is API-first and built for extensibility, so you can tailor authentication workflows without getting locked into rigid, inflexible systems.
FusionAuth supports all the key use cases — user registration, multi-factor authentication (MFA), passwordless login, role-based access control, and more — while helping you stay compliant with GDPR, HIPAA, PCI, and other regulatory standards.
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Twilio
Design and deploy your ideal customer engagement experience. Twilio is a single fully-programmable platform with flexible APIs for any channel and over 400+ integrations, backed by a community of over 9 million developers. Build accurate and personalized experiences for your customers, easily and at scale, using SMS and WhatsApp messaging, voice, video, email, and more.
Browse documentation and SDKs in multiple coding languages, including Ruby, Python, PHP, Node.js, java, and C#, or jumpstart your first project with our open source code templates to quickly build production-ready communications apps. Sign up and start building today.
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Gupshup
Headquartered in Silicon Valley, Gupshup is a leading conversational messaging platform that enables businesses to build engaging conversational experiences seamlessly across 30+ messaging channels using a single API. Gupshup offers an easy-to-use omnichannel messaging API, advanced bot-building platform and mobile marketing tools. Gupshup's messaging platform handles over 6 billion messages per month enabling over 39,600 businesses send messages to several billion users across popular messaging channels such as SMS, Voice, WhatsApp, Mobile Web, Android RCS, Instagram, Twitter, Telegram, WeChat, FB Messenger, Slack, Viber, Skype and many more. Gupshup's constant innovation enables it to offer market leading features on its platform, enabling developers to build Interactive, Programmable and Rich omni-channel CX journeys across messaging services
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Weavy
The complete in-app collaboration API and SDK. Add contextual activity feeds, chat, and document collaboration directly into your apps to increase user engagement, improve in-app retention, and reduce customer churn. All Weavy features include integrations to the third party tools your users are already familiar with: add capabilities for Zoom and Teams video conferencing, Google Drive, Dropbox, or Box file sharing, document sync and versioning contextually inside your app. Weavy allows app developers to quickly add the features that users need to be productive and interactive, directly within the app environment. With our SDK and APIs, you can deploy chat, feeds, and document sync in a matter of days, not months, and at a fraction the cost to build in-house. Focus on your core product while simultaneously adding functionality that makes your user experience not only better, but increases user engagement and dependency on your app.
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