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Dev tools · alternatives · 2026

24 alternatives to BillingEngine

Usage-based billing for APIs — real-time rating

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Lotus▲520

    Open-source pricing & billing

    2023 · github.com · its alternatives →

  2. 2

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

    Jun 2026 · its alternatives →

  3. 3

    Automated metering and billing for usage based pricing

    2023 · its alternatives →

  4. 4

    Billing and subscriptions for fast-growing businesses

    2018 · stripe.com · its alternatives →

  5. 5
    Amberflo▲157

    Cloud metering and usage-based pricing and billing for SaaS

    2022 · amberflo.io · its alternatives →

  6. 6
    Paigo▲267

    Automate billing for any pricing, 0% transaction fee forever

    2023 · its alternatives →

  7. 7

    Invoicing made simple

    2018 · billingengine.com · its alternatives →

  8. 8
    Lago▲1,013

    Open-source alternative to Stripe Billing and Chargebee

    2023 · getlago.com · its alternatives →

  9. 9
    Credyt▲100

    Hey HN! I'm the founder of Credyt (https://credyt.ai). If you're running an AI product that burns $0.50+ per interaction, you need to bill customers as usage happens, not at the end of the month. Otherwise you're a bank for your customers, and you'll run out of money before they do. Why invoice-based billing doesn't work for AI: Most usage-based billing tools (Stripe Billing, Orb, etc.) were built for SaaS. They meter usage all month, then send an invoice. That works fine when your COGS is 5%. It's a disaster when you're paying your AI vendor upfront for every request and your…

    Nov 2025 · credyt.ai · its alternatives →

  10. 10

    Open source billing UI components

    2025 · billingsdk.com · its alternatives →

  11. 11
    Kable▲194

    Usage-based billing for API products

    2022 · kable.io · its alternatives →

  12. 12

    Easily price on usage, SaaS billing without headaches

    2021 · getoctane.io · its alternatives →

  13. 13

    Figure out the right pricing for your SaaS product

    2021 · indiebrands.io · its alternatives →

  14. 14

    Stripe is great, but is not simple. You end up handling many webhooks, mirroring Stripe data, tracking subscription states, and hardcoding feature checks. Managing upgrades, downgrades, migrations, overrides, and grandfathering often needs custom scripts. ParityDeals keeps that billing logic out of your app. Once you integrate ParityDeals SDK, you can manage everything from a single dashboard. No further code changes required. I'd love to hear your feedback

    2025 · paritydeals.com · its alternatives →

  15. 15

    AI Pricing Generator for your Product or SaaS

    2024 · pricingmaker.com · its alternatives →

  16. 16

    Hi HN! We’re building an open-source pricing & packaging engine for SaaS with a built-in billing system. (https://github.com/uselotus/lotus). We strongly believe pricing is the largest untapped growth lever for SaaS, primarily because pricing affects so many critical systems that don’t talk to each other (billing, payments, feature limits, metering, and CRM). We’re building this infrastructure to fix this and enable quick experimentation. Lotus acts as a central repository for all of your pricing plans and utilizes your payment gateway, to manage usage-based, per-seat,…

    2022 · github.com · its alternatives →

  17. 17

    Process, Rate/Meter, and Bill Any Usage Event at Scale

    2024 · onebillsoftware.com · its alternatives →

  18. 18

    Build a custom billing system in minutes with just config

    2025 · billingrails.com · its alternatives →

  19. 19
    Charge▲78

    Streamline your billing and subscription management

    2023 · its alternatives →

  20. 20
    Tiers▲173

    Pricing page builder for Stripe Billing

    2018 · tiers.io · its alternatives →

  21. 21LO

    Hey HN! We discovered that no one innovates on pricing because every billing software is inflexible. Excited to share our progress with Lotus entering beta (full MIT license, https://github.com/uselotus/lotus). New features: * backtest and run analysis comparing multiple plans * version pricing plans like you version code * Meter and aggregate usage flexibly with custom SQL * billing for usage-based pricing, hybrid, bespoke contracts * generate invoice pdfs or integrate with Stripe, Braintree, Netsuite, Salesforce * webhooks to send alerts when usage thresholds are high…

    2023 · demo.uselotus.io · its alternatives →

  22. 22
    USAGEY▲8

    Usage-based billing saas toolkit

    2025 · usagey.com · its alternatives →

  23. 23
    OneBill▲79

    End-to-end recurring billing & revenue management platform

    2021 · onebillsoftware.com · its alternatives →

  24. 24

    Self-hosted Next.js 15 boilerplate: OAuth 2.1 + PKCE, API key management, Stripe usage-based billing with explicit metering decisions, Redis rate limiting. 300 tests. No revenue share. https://mcp-billing.com

    Jul 2026 · mcp-billing.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →