Ark vs CZNull

Ark is the email API built for AI-first developers. Native MCP server with 26 tools lets Claude, Cursor, Windsurf, and Claude Code send emails through natural language — no wrapper code needed. AI-readable docs cut token usage by 10x.

Integrates seamlessly with your stack: Supabase edge functions, n8n workflows, Vercel serverless, or any automation pipeline. SDKs for Python, Node.js, Ruby, and Go. Full SMTP relay for self-hosted tools like Listmonk, Coolify, and Metabase.

99.9% deliverability. Sub-second delivery. Automatic SPF, DKIM, and DMARC. Real-time webhooks for delivery, opens, clicks, and bounces.

Simple pricing: $0.50 per 1,000 emails. No tiers, no enterprise sales calls. Start free with $5 in credits.

Built for developers who ship with AI, automate with code, and don't want to think about email infrastructure.

CZNull is an innovative performance testing platform that empowers developers, engineers, and tech enthusiasts to unveil the full potential of their software and hardware systems. With a robust suite of benchmarking tools, CZNull allows users to conduct meticulous performance assessments, whether they are optimizing applications, analyzing system resource usage, or benchmarking hardware components. The platform's user-friendly interface provides detailed analytics that enable users to identify bottlenecks and monitor efficiency, paving the way for data-driven improvements. With cutting-edge WebGL technology at its core, CZNull guarantees unparalleled accuracy and reliability in performance metrics. From gamers seeking to enhance their gaming rigs to developers aiming to fine-tune their applications, CZNull is the go-to solution for anyone looking to stay competitive in an ever-evolving tech landscape.