Alternatives

Products that do what Corebill does

AI-first invoicing for developers and agencies

1. 1
   Easybilling▲91

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

   Jun 2026

2. 2
   Paritydeals▲341

   Flexible billing for AI & SaaS

   Oct 2025

3. 3
   JustPaid▲272

   Autonomous AI for billing, contracts, and collections.

   Oct 2025

4. 4
   Smart Invoices▲121

   The First AI-Powered Invoicing Assistant

   2024

5. 5
   Client Billing▲156

   All-in-one billing and payments solution

   2024

6. 6
   QuickBill▲164

   A simple tool to create unlimited free invoices.

   2017

7. 7PA
   Paid, an API for invoicing▲88

   2015 · paidapi.com

8. 8
   Invoicey.io▲10

   Free AI invoice & quote generator with 1-click conversion

   Feb 2026

9. 9
   BillingBee.co▲8

   From proposal to payment — powered by AI. Free to start.

   Jul 2026 · billingbee.co

10. 10II
    InvoicingAPI is finally ready▲20

    After a lot of personal hardships over the past year, I can finally say that InvoicingAPI is ready for public use. It's a platform where you can create beautiful, customizable and dynamic, tax-compliant invoices with payment links built in, so your clients pay you faster. In your dashboard you can see your payments and payouts to your bank. This is just an initial release and plenty of features are in the pipeline, like an online builder, automated sending, 3rd party app integration, etc. Feel free to poke around and let me know your thoughts!

    2024 · invoicingapi.com

11. 11
    KipBill

    Talk to your AI assistant and it invoices for you

    Apr 2026 · kipbill.com

12. 12
    PineBill▲7

    Invoicing platform for small & mid-sized businesses

    Dec 2025

13. 13
    ClientPay▲5

    Invoicing that gets you paid faster with an AI assistant

    Mar 2026 · clientpay.app

14. 14
    A1invoice: Free Online Invoice Generator▲2

    Invoice Smarter, Get Paid Faster

    May 2026 · a1invoice.com

15. 15FO
    Flexprice: Open-Source Usage-Based Billing Toolkit▲7

    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

16. 16
    Invoicey▲4

    AI-powered invoicing and quotes for freelancers.

    May 2026 · invoicey.io

17. 17
    Eonebill

    Just Describe and Bill. The AI-Powered Invoicing Assistant.

    Dec 2025

18. 18IA
    Invoiced, a self-hosted invoicing app with API▲12

    2015 · invoiced.io

19. 19
    VoxInvoice▲7

    Offline-first invoicing for freelancers. Free forever.

    Mar 2026 · voxinvoice.com

20. 20
    Invoice AI: AI-Powered Smart Billing▲4

    Automate Your Global Billing with Intelligent AI Solutions

    May 2026

21. 21
    ADDINVOICES▲5

    Invoice by voice. Get paid faster

    Jun 2026 · addinvoicesai.com

22. 22
    InvoiceAI▲5

    Launch your own AI invoicing SaaS in hours, not weeks

    Jul 2026 · stepanova12.gumroad.com

23. 23
    ledger▲2

    AI powered professional invoicing for productive businesses.

    May 2026 · ledger.kifaruhub.com

24. 24
    AI Scnr - Invoice AI Scanner▲2

    Parse any invoice into structured JSON with one API call

    Feb 2026

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