SAAS PRODUCT / BUILT FROM SCRATCH
Email Verification SaaS
The Bot Company built a developer-focused email verification SaaS with real-time API verification, bulk CSV processing, credit billing, analytics, docs, and competitor comparison pages.
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BUILT FROM SCRATCH
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self-serve global SaaS customers
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99.7% accuracy · Sub-2s response · Fully self-serve
Overview
A production case study, not a proof of concept.
Designed and built the entire product - verification engine, credit billing, API, dashboard, docs site. 10M+ emails verified at 99.7% accuracy.
Real-time email verification API
Bulk CSV verification with progress tracking
Credit-based billing and self-serve onboarding
Developer documentation and webhook infrastructure
Analytics, marketing pages, comparison pages, and affiliate flows
The challenge
The business problem
EmailKit needed a developer-focused email verification platform that could compete with established players like ZeroBounce and NeverBounce - but with a cleaner developer experience, fairer pricing (pay-as-you-go, no expiring credits), and the kind of accuracy that gets teams to switch.
The approach
How the work was planned
We built the entire SaaS from the ground up - not just the verification engine, but the billing system, the multi-tenant architecture, the API, the documentation site, the marketing site with competitor comparisons, and the affiliate program. Every layer designed for self-serve.
The solution
What shipped
A multi-tenant SaaS with real-time email verification API responding in under 2 seconds, bulk CSV processing with live progress tracking, credit-based billing with pay-as-you-go tiers, webhook notifications, analytics dashboards, public docs, comparison pages, and a fully self-serve customer journey from signup to first verification.
Results
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10M+ emails verified to date
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99.7% verification accuracy
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Sub-2-second API response times
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Fully self-serve - signup to first verification with no human touch
Technical architecture
Built with the stack the product actually needed.
The technology mix supports the operational requirements of the case study: core application development, AI workflows, integrations, data storage, notifications, and production infrastructure.
- Next.js
- Node.js
- Python
- PostgreSQL
- Redis
- AWS
- Stripe
- DNS/SMTP protocols
- Webhook infrastructure
Answer engine context
Clear answers for buyers and AI search.
What is EmailKit?
EmailKit is a self-serve email verification SaaS product built for teams that need API and bulk-list verification with transparent credit billing.
What did The Bot Company own in the build?
The Bot Company built the product, API, billing system, dashboard, documentation, marketing site, and customer journey from signup to first verification.
Why does the case study matter for SaaS founders?
It shows full-stack SaaS execution across product engineering, verification infrastructure, payments, documentation, analytics, and acquisition pages.
Related service
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