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BSG Docs for Developers

Explore handy BSG API documentation and guides that let you interact with our platform and implement
the main features into your project. Get started, integrate and automate using your favorite languages.

API Documentation

All communication tools — in one flexible API. Fast to integrate, easy to scale, and built for real-time results across SMS, Email, RCS, and Voice.

Transactional Emails

Send transactional emails seamlessly and track delivery status with the BSG Email API. Easily integrate with your CRM or CMS to automate email flows, ensuring personalized and timely communication for your users.

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RCS

Launch campaigns and gain full tracking of your clients' behavior in real-time. Check delivery and open rates, monitor clicks on call-to-action buttons, view link statistics, and more with a simple connection.

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SMS

Send transactional and bulk SMS, view and receive SMS status, and retrieve the price automatically via flexible BSG SMS API. Transmit user data from your CRM or CMS into your BSG account to automate...

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Viber

Reach clients on the fast-growing messaging app through streamlined BSG API integration, supported by Viber. Send timely, targeted, and relevant Viber campaigns to any country across the world.

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2FA

Increase the security of clients’ data on website and application by integrating SMS one-time password via RESTFUL API. Add the authentication level to your project by embedding a special code into your.

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Number Verifier

Get a quick response about the status of your customers: active, in roaming, or ported to keep the database valid. Set up automatic phone number verification before adding to the address book or...

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MNP

Check whether the phone number of your client is ported automatically. It helps to know the exact cost of each SMS campaign and use high-quality routes that ensure fast delivery. Based on an advanced ENUM...

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Short URL

Cut links and make them branded to increase awareness and track conversions automatically on your platform or website. The ready-made service integration with SMS tools helps to scale the power of...

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Alina Yastremska

Outbound manager, Growe

“The Voice Assistant in BSG handled all requested languages and even detected emotional tone to escalate the dialogue — no scripts needed”

Maryna Bondarenko

CEO, Sunny Way

“Deployment took two days. Within a week, the bot was handling 40% of repeat requests without live agents.”

Marko Bregant

Head of Marketing Department, Poliklinika Identalia d.o.o

“BSG Voice Assistant sounds natural, adaptive, and human — not like a call center robot. Dialogues switch smoothly between 2 languages in real time.”

Tom Becker

CTO, Medikit Systems

“From onboarding to post-launch support, BSG made us feel like a top-tier client. The level of ownership and technical competence they bring is rare in CPaaS.”

Nico Brandt

Marketing Automation Lead, RivoTech

“It’s not just about the tools. With BSG, we have a real partner — proactive, transparent, and focused on our results. That’s what made the difference.”

Libraries

Pre-built libraries for quick integration. Use ready-made clients for PHP, Node.js, and Go to connect with the API faster and start sending in minutes.