Payments & billing infrastructure

Flexprice tech stack

Usage-based pricing and billing for developers

flexprice.io ↗Checked Sep 2026

Foundation

“Bulletproof email delivery for sending invoices, payment links, and alerts to our users.” — the maker, Sep 2026 ↗

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

“Handles authentication and RBAC for our APIs with zero fuss.” — the maker, Sep 2026 ↗

In its subprocessor list: Supabase source · Oct 2026 ↗

“Blazing-fast analytics engine powering our real-time usage metering and billing dashboards.” — the maker, Sep 2026 ↗

In its subprocessor list: ClickHouse source · Oct 2026 ↗

“The orchestration engine behind delayed events like trial expiries and billing reminders.” — the maker, Sep 2026 ↗

In its subprocessor list: Temporal source · Oct 2026 ↗

Money

In its subprocessor list: Razorpay source · Oct 2026 ↗

AI in the product

In its subprocessor list: OpenAI source · Oct 2026 ↗

Shipping

“Our eyes and ears in production—crash reporting and performance insights in one place.” — the maker, Sep 2026 ↗

In its subprocessor list: AWS source · Oct 2026 ↗
In its subprocessor list: Cloudflare source · Oct 2026 ↗
In its subprocessor list: GCP source · Oct 2026 ↗

Growth

In its subprocessor list: PostHog source · Oct 2026 ↗
In its subprocessor list: Google Analytics source · Oct 2026 ↗

Building with AI

“Our collaborative AI coding assistant that helped us ship Flexprice faster.” — the maker, Sep 2026 ↗

Other tools

Other
In its subprocessor list: Vercel source · Oct 2026 ↗
On its website: DNS: app.flexprice.io CNAME cname.vercel-dns.com; HTTP: app.flexprice.io responds with x-vercel-id source · Oct 2026 ↗

Built on a similar stack

Products that share the most distinctive building blocks with Flexprice.