Keplars
Email infrastructure for startups with delivery tracking
About Keplars
Keplars is an email platform aimed at startups and product teams that need to send transactional and marketing email without wrestling with complex setup. It lets teams send through their existing Gmail, Outlook or custom domain accounts via OAuth, and offers REST APIs, SMTP relay, webhooks and SDKs for several languages.
The platform includes a visual and code-based email editor, real-time tracking of deliveries, opens, clicks and bounces, a sandbox for testing before sending, and mailbox warmup to support inbox placement. Marketing campaigns, audience segmentation and automations sit in the same product as transactional sends, so teams do not need separate tools for each use case.
Integrations cover frameworks and no-code tools such as Firebase, Next.js, Zapier and n8n. The site advertises a free trial with no credit card required and an MCP server for AI agents, though its public documentation for that server was not detailed on the homepage.
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