Battle-tested SDKs for your entire technology stack
Whether you build with TypeScript, Python, Flutter, Go, or PHP, Mailofly provides comprehensive, lightweight client SDKs with zero unnecessary bloat and built-in type safety.
Official client languages
Strict TypeScript types
SDK execution overhead
Engineered for developer velocity
Type safety from day one
Full TypeScript definitions, Python dataclasses, and Go structs catch API mismatches during development.
Auto-retry & network resilience
Built-in exponential backoff retries transient network errors seamlessly without dropping requests.
Unified API surface
Consistent method signatures across languages make polyglot development simple and intuitive.
How it works
Install library
Run npm i @mailofly/node, pip install mailofly, or dart pub add mailofly.
Initialize with API key
Pass your workspace API key to the client instance.
Send with 3 lines of code
Dispatch emails, manage contacts, and stream webhook verification with simple one-liners.
Explore related features
Smart sender account rotation
Distribute outgoing email volume automatically across multiple connected Google inboxes, custom SMTP identities, and sending domains to prevent hitting provider rate limits.
Mailofly AI & Native MCP
Integrate Mailofly directly with your AI development workflows. Run our native Model Context Protocol (MCP) server or chat with Mailofly AI for real-time domain audits and template optimization.
Smart dynamic routing
Intelligently routes traffic to the fastest regional servers and fallback SMTP providers based on ISP latency and deliverability health.
Ready to build with SDKs for every language?
Join thousands of engineering teams delivering transactional and lifecycle email with blazing speed and zero downtime.