battles / Payments
Mollie vs Primer
Mollie ($165/mo/mo, vibe code 3/10) vs Primer ($1,500/mo/mo, vibe code 3/10). Primer is the easier one to rebuild yourself — here is what you lose either way.
Payments
$165/mo/mo
- MVP
- 2-3 weeks
- Full replacement
- 18-36 months
Payments
$1,500/mo/mo
- MVP
- 2-3 weeks
- Full replacement
- 12-24 months, due to PCI-DSS Level 1 compliance requirements, universal card vaulting, and maintaining dozens of PSP integrations.
easier to rebuild
get the build prompt →price gap / year
$16,020/mo
running both / year
$19,980/mo
our call
Start with Primer — highest vibe code, weakest moat.
Mollie
You cannot replace Mollie with an AI prompt because Mollie is an authorized European payment institution with regulated money movement rails. Writing the software layer for checkout widgets or payment orchestration is simple, but software alone cannot process card transactions, settle iDEAL payments, or hold merchant funds.
you can rebuild
- Hosted checkout payment pages and payment links.
- Merchant dashboard UI for manual refunds, customer list, and transaction history.
- Basic recurring billing schedules and subscription state management.
- Webhook dispatch engine with signature verification.
- Multi-currency payment payload normalization.
what you lose
- Access to De Nederlandsche Bank payment institution licensing under PSD2/PSD3 regulations.
- Direct settlement contracts with European acquirers, card schemes, and local APMs.
- Managed chargeback defense mechanisms and automated fraud detection systems.
- Out-of-the-box support for physical hardware POS terminals and Tap to Pay frameworks.
- Automated cross-border SEPA clearing and multi-currency payout reconciliation.
real moats
- Licensed European Payment Institution (PI) status regulated by De Nederlandsche Bank (DNB).
- Direct acquirer access to local payment schemes (iDEAL, Bancontact, TWINT, Cartes Bancaires, Wero).
- Capital reserves, banking partnerships, and ring-fenced safeguarding accounts (Stichting Derdengelden).
- Hardware supply chain and distribution network for physical POS terminals and Tap-to-Pay provisioning.
open source escape hatches
- Hyperswitch Apache-2.0
- Killbill Apache-2.0
- BTCPay Server MIT
Primer
Building basic logic to failover between Stripe and Adyen in Node.js takes a few days. However, Primer provides PCI-DSS Level 1 card vaulting, 3DS2 orchestration, unified tokenization, and dozens of pre-built payment connectors. Replacing Primer with custom code creates massive regulatory and engineering overhead.
you can rebuild
- Basic conditional payment routing (if Gateway A fails, try Gateway B)
- Rule-based PSP selection by buyer currency or country
- Basic payment transaction logging and status dashboard
- Dynamic surcharge calculations based on payment method
- Centralized webhook aggregation for payment status events
what you lose
- PCI-DSS Level 1 compliant card tokenization vault
- Pre-built integrations for 100+ PSPs, BNPLs, and alternative payment methods
- Native 3DS2 (Strong Customer Authentication) flow orchestration across gateways
- No-code visual drag-and-drop payment workflow automation editor
- Unified financial reconciliation and automated payout matching across processors
real moats
- PCI-DSS Level 1 security architecture and ongoing audit compliance
- Universal card vaulting and token format translation between legacy gateways
- Battle-tested maintenance of dozens of volatile payment processor APIs
open source escape hatches
- Hyperswitch Apache-2.0
- Kill Bill Apache-2.0
- Active Merchant MIT
Questions people ask
Which is easier to rebuild with AI, Mollie or Primer?
Primer. It scores 3/10 on vibe code with a moat of 6/10, so an AI-assisted MVP takes about 2-3 weeks and a full replacement about 12-24 months, due to PCI-DSS Level 1 compliance requirements, universal card vaulting, and maintaining dozens of PSP integrations..
Which one costs less, Mollie or Primer?
Mollie at $165/mo/mo for a typical mid-market store. The gap between the two is about $16,020/mo a year.
What do I lose if I replace Mollie?
Access to De Nederlandsche Bank payment institution licensing under PSD2/PSD3 regulations. Direct settlement contracts with European acquirers, card schemes, and local APMs. Managed chargeback defense mechanisms and automated fraud detection systems.
What do I lose if I replace Primer?
PCI-DSS Level 1 compliant card tokenization vault Pre-built integrations for 100+ PSPs, BNPLs, and alternative payment methods Native 3DS2 (Strong Customer Authentication) flow orchestration across gateways
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