Introduction

CastBrick is a developer-focused SaaS platform for reliable transactional and marketing messaging. It provides REST APIs and official SDKs for sending email and SMS, plus a marketing dashboard for campaigns, contacts, and templates.

Key features

• Developer-first REST APIs for Email and SMS
• Official SDKs for JavaScript, Python, Go, C#, and Java
• Template management and rendering engine
• Campaign creation, scheduling, and analytics for marketing teams
• Contact lists and segmentation
• Webhooks and delivery status tracking

Who is this for?

• Developers: Integrate email and SMS into apps using simple APIs and SDKs.
• Marketing teams: Build, schedule, and analyze campaigns without developer involvement.

Read on for a quick start, API reference, and SDK guides.