Sinch

Sinch offers 10+ APIs for communications, including SMS API, Conversation API, Voice API, and more. The Conversation API enables unified messaging across 14 channels through a single integration, simplifying omnichannel communication. The SMS API connects directly to 600+ carriers with reliable global delivery and built-in AI security. The Brands API manages customer brand profiles, while the Provisioning API handles service configuration. The Registration API manages sender ID and campaign registrations for compliant business messaging. Sinch messaging APIs reach 190+ countries through 600+ carrier connections with enterprise-grade security including encryption, consent management, regional data handling, and audit trails.