Join waitlist
Back to products
Keplars

Keplars

Email Infrastructure for Modern Product Teams Email • Marketing • SaaS 10 116 Tines Build agents & automations integrated across your workspace Developer Tools • Artificial Intelligence • Security Anupam Singh This feels like automation built for real teams, not just perfect demos and it’s great to see it opened up to smaller teams too.

Website keplars.com
Overview

What it is

Keplars powers transactional emails and marketing emails with full delivery visibility, sandbox testing, and seamless scale - with strong developer experience, enabling you to send emails in under 5 clicks, and usage-based pricing.

Intent

I need it when

Send transactional emails (OTPs, password resets, invoices) without complex SMTP configuration

Keplars eliminates DNS setup friction by routing through Gmail, Google Workspace, or Microsoft Outlook infrastructure. Developers can send emails in under 5 clicks via REST API or SMTP with 99.77% deliverability and SPF/DKIM/DMARC ready out-of-the-box, enabling fast product launches without email infrastructure overhead.

Integrate email sending quickly with minimal developer friction using modern APIs and SDKs

Keplars provides REST API, SMTP, webhooks, and official SDKs for 11 languages with clear documentation. Developers report setup in minutes with intuitive dashboard credential generation, drag-and-drop email templates, and AI-powered template generation to reduce configuration time.

Scale email sending from startup MVP to high-volume production without forced tier upgrades

Keplars offers flexible usage-based pricing with custom sliders to adjust email volume, accounts, webhooks, and team members. Plans range from $1/month (5,000 emails) to unlimited custom tiers, allowing teams to pay only for what they use and upgrade incrementally as product grows.

Track email delivery, opens, and clicks with full visibility into email performance

Keplars provides 100% delivery transparency with real-time tracking of delivery status, opens, clicks, and full email timelines in a unified dashboard. Webhooks enable event-driven tracking for bounces, opens, and clicks, giving product teams actionable insights without log digging.

Send both transactional and marketing emails from a single platform with campaign scheduling

Keplars supports transactional emails (OTPs, alerts, notifications) and marketing campaigns (newsletters, announcements) in one unified editor. Marketing plans include campaign scheduling, subscriber management, and separated traffic routing to ensure critical transactional emails are always prioritized.

Drop

Not a fit when

  • Sending sensitive or regulated data (HIPAA, PCI-DSS) — Keplars explicitly states it is not intended for handling sensitive or regulated data and does not maintain HIPAA or SOC 2 compliance
  • Requiring dedicated IP addresses — Keplars routes through Gmail, Google Workspace, and Microsoft Outlook infrastructure, so dedicated IPs are not supported
  • Needing high-volume cold outreach at scale — while cold outreach is permitted, the platform is optimized for transactional and marketing emails from product teams, not mass cold email campaigns
  • Requiring on-premise or self-hosted deployment — Keplars is a cloud-only SaaS platform hosted on AWS and Leaseweb
  • Needing formal compliance certifications — Keplars does not maintain HIPAA, SOC 2, or similar formal compliance attestations
  • Sending from pre-existing SMTP infrastructure without domain setup — while Keplars simplifies setup, it still requires connection via Google Workspace, Microsoft Outlook, or custom domain
Commercials

Pricing

USD1 / monthly View pricing