# SMSAPI > SMSAPI is a Communications Platform as a Service (CPaaS) provider that helps businesses automate customer communication using SMS, RCS Business Messaging, WhatsApp Business, Voice (VMS) and APIs. SMSAPI is designed for companies, developers and public institutions. The resources below provide the best starting points for understanding the platform, integrating its APIs and building communication workflows, including AI-powered automations. ## Getting Started - [Documentation](https://www.smsapi.pl/docs/): Official technical documentation, guides and implementation examples. - [REST API Reference](https://www.smsapi.pl/rest): Complete REST API specification. - [Create a Free Account](https://www.smsapi.pl/rejestracja): Register a free business account and start testing SMSAPI. - [Pricing](https://www.smsapi.pl/cennik): Current pricing for SMS and communication services. ## AI & Automation - [SMSAPI MCP Server](https://www.smsapi.pl/blog/wiedza/smsapi-mcp-server-instrukcja/): Connect ChatGPT, Claude and other MCP-compatible AI agents to SMSAPI. - [Knowledge Base](https://www.smsapi.pl/blog/wiedza/): Tutorials covering SMS automation, AI workflows, integrations and communication best practices. - [Blog](https://www.smsapi.pl/blog): Articles about mobile communication, CPaaS, AI and customer engagement. ## Products - [Bulk SMS](https://www.smsapi.pl/masowa-wysylka-sms): High-volume SMS messaging for businesses. - [SMS Campaigns](https://www.smsapi.pl/kampanie-sms): Marketing and promotional SMS campaigns. - [Transactional SMS](https://www.smsapi.pl/powiadomienia-sms): Automated customer notifications and alerts. - [Two-Factor Authentication (2FA)](https://www.smsapi.pl/2fa-sms): SMS-based one-time passwords and authentication. - [Inbound SMS](https://www.smsapi.pl/odbior-sms): Receive SMS messages from customers. - [RCS Business Messaging](https://www.smsapi.pl/rcs): Rich, interactive business messaging. - [WhatsApp Business](https://www.smsapi.pl/whatsapp): Business messaging through WhatsApp. - [Voice Messages (VMS)](https://www.smsapi.pl/wiadomosci-glosowe-vms): Automated voice notifications. - [HLR Lookup](https://www.smsapi.pl/hlr): Verify mobile number status and activity. ## Integrations - [Integrations](https://www.smsapi.pl/integracje): Ready-made integrations with CRM, e-commerce and marketing platforms. - [GitHub](https://github.com/smsapi): Official SDKs, libraries and sample projects. ## Company - [Security](https://www.smsapi.pl/bezpieczenstwo): Security standards, GDPR compliance and certifications. - [Privacy Policy](https://www.smsapi.pl/polityka-prywatnosci): Information about personal data processing. ## Optional - [XML Sitemap](https://www.smsapi.pl/sitemap.xml): Public sitemap of the SMSAPI website.