Payments & billing infrastructure

Flowglad tech stack

Flowglad is an open-source payments and billing provider that apps integrate without webhooks; its API reports each customer's plan and feature access directly. It is for developers adding subscriptions or usage billing.

flowglad.com ↗Checked Sep 2026

Foundation

“Built our dashboard and even API in Next.js” — the maker, Sep 2026 ↗

On its website: HTTP: dashboard.flowglad.com responds with x-powered-by: Next.js source · Oct 2026 ↗

“Resend has been been a dream of an email provider” — the maker, Sep 2026 ↗

On its website: DNS: resend._domainkey.flowglad.com TXT (record present); DNS: send.flowglad.com MX feedback-smtp.us-east-1.amazonses.com source · Oct 2026 ↗

“Powers all of our background jobs” — the maker, Sep 2026 ↗

On its website: DNS: clerk.flowglad.com CNAME frontend-api.clerk.services; DNS: accounts.flowglad.com CNAME accounts.clerk.services source · Oct 2026 ↗

Shipping

“In the extremely rare case that we author a bug, Sentry helps us catch it damn near immediately” — the maker, Sep 2026 ↗

On its website: DNS: dashboard.flowglad.com CNAME appserviceloadb-hovkwazm-1412710191.us-east-1.elb.amazonaws.com source · Oct 2026 ↗

Growth

“We use Loops for our newsletter, where we send out (among other things) our semi-monthly product changelog” — the maker, Sep 2026 ↗

On its website: DNS: envelope.flowglad.com MX feedback-smtp.us-east-1.amazonses.com source · Oct 2026 ↗

“We love PostHog and use it for all of our analytics” — the maker, Sep 2026 ↗

Built on a similar stack

Products that share the most distinctive building blocks with Flowglad.