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Products that do what Nomod payment integrated into usage-based billing stack does

Hi HN, We just shipped a Nomod integration in Flexprice. For context, flexprice is an open-source billing system that handles invoices, usage, and credit wallets. One gap we wanted to close was supporting region-specific payment providers without breaking billing state. With this integration: - Invoices finalized in Flexprice can be synced to Nomod - A hosted Nomod payment link is generated for the invoice - Payment status updates flow back into Flexprice - Invoices and payment records stay in sync - Credits (if applicable) are applied only after payment succeeds This keeps billing logic…

  1. 1
    Flexprice240

    Usage-based pricing and metering for developers

    2025

  2. 2FO

    Hey HN, I’am Koshima, co-founder of Flexprice (https://flexprice.io/). Flexprice is an open source monetization platform for AI & Agentic companies. You can build usage-based, credit-based, or hybrid pricing models with full control. Usage-based billing works on paper, but breaks fast in production: (1) High-volume data (e.g., 10k API calls/sec from AI inferences) breaks naive pipelines, dropping events and causing underbilling or customer complaints. (2) Backfilling missing events or retroactive discounts screws up invoices, forcing 3 AM log stitching to avoid revenue…

    2025

  3. 3

    Open source billing UI components

    2025

  4. 4

    Powerful payments & e-commerce API without writing code.

    2018

  5. 5
    FlexSave486

    Save $500,000+ on your favourite software products

    2023

  6. 6
    Ramp Flex127

    The most flexible way to pay your vendors, ever

    2022

  7. 7WB

    Hi HN! For the past bit we’ve been building Flowglad (https://flowglad.com) and can now feel it’s just gotten good enough to share with you all: Repo: https://github.com/flowglad/flowglad Demo video: https://www.youtube.com/watch?v=G6H0c1Cd2kU Flowglad is a payment processor that you integrate without writing any glue code. Along with processing your payments, it tells you in real time the features and usage credit balances that your customers have available to you based on their billing state. The DX feels like React, because we wanted to bring…

    Nov 2025 · github.com

  8. 8

    Accept card payments, anytime, anywhere, with Stripe 🚀

    2018

  9. 9
    ZenVoice309

    Stripe invoices without the fee

    2024

  10. 10
    PayPing273

    All your recurring payments in one place

    Jan 2026

  11. 11

    OAuth 2.1 + usage-based Stripe billing for MCP servers

    Jul 2026 · mcp-billing.com

  12. 12

    Flexible billing for AI & SaaS

    Oct 2025

  13. 13

    No need to create invoices. No need to remind clients to pay

    2017

  14. 14AC

    Hey HN, A recurring problem we kept running into with billing systems was the human layer around them. Customers asking: “What’s my current balance?”“Which invoice is pending?”“Why did usage spike last week?”And the answer was usually someone digging through dashboards, exporting PDFs, or pasting screenshots. So we built a read-only customer billing portal inside Flexprice (open-source metering + billing infra). It gives customers visibility into: subscriptions and billing periodsprepaid wallet balances and credit transactionsinvoices (status, search, download)feature-level usage and cost…

    Feb 2026 · flexprice.io

  15. 15
    Flexpoint311

    A single storefront for creators to sell anything

    2025

  16. 16

    Stripe billing data, always current in Google Sheets

    Aug 2026 · syncstaq.com

  17. 17

    Invoicing built for speed and scale

    2021

  18. 18
    Flowglad279

    Open source, webhook-free payments that AI can one-shot

    Dec 2025

  19. 19

    Business spend management with cards and approvals

    May 2026 · useflexfinance.com

  20. 20SN

    Hey HN, stripe-no-webhooks is an open-source library that syncs your Stripe payments data to your own Postgres database: https://github.com/pretzelai/stripe-no-webhooks. Here's a demo video: https://youtu.be/cyEgW7wElcs Why is this useful? (1) You don't have to figure out which webhooks you need or write listeners for each one. The library handles all of that. This follows the approach of libraries like dj-stripe in the Django world (https://dj-stripe.dev/). (2) Stripe's API has a 100 rpm rate limit. If you're checking subscription status…

    Feb 2026 · github.com

  21. 21
    Unpayd139

    Automated invoice collections for small businesses 💰

    2018

  22. 22

    AI-native billing & payments for usage-based AI products

    Jun 2026

  23. 23
    Nomod131

    💳📲 Accept card payments on your phone, anytime, anywhere

    2021

  24. 24
    Rebill94

    Payment orchestration & recurring billing platform for LATAM

    2022

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