Checkout.com
Medium — proprietary tokens
Migration difficulty: medium
Data you keep: Via API export
API standard: Proprietary
Risk notes: Medium — proprietary tokens
💡 Moderate effort required. Export data before canceling
Payment Gateway / PSP
Checkout.com vs Modern Treasury
Checkout.com and Modern Treasury both show up under the payment gateway category, but they solve slightly different jobs. Checkout.com uses usage-based from custom pricing, while Modern Treasury runs on custom (sales-led) pricing. Both sit at moderate lock-in. Transparency lands at 4/5 versus 1/5. Checkout.com fits teams working on SaaS with online payments, while Modern Treasury is a closer match when the job is ACH, wire, and RTP payment operations with real-time ledgering API. Worth noting: Checkout.com is explicitly not for offline, Internal projects; Modern Treasury is explicitly not for merchants who mainly need card acceptance. The honest trade-off: Checkout.com trades off on offline-only retail; Modern Treasury trades off on US-bank-focused, limited globally. On the plus side, Checkout.com highlights SaaS with online payments, while Modern Treasury points to deep ACH, wire, RTP, FedNow coverage. Checkout.com's documentation also calls out e-commerce checkout. Modern Treasury similarly notes real-time ledgering built in. For teams evaluating payment gateway options today, the right choice usually comes down to pricing model, lock-in, and which tool's stated use-case maps to yours.
Quick take
Checkout.com is for SaaS with online payments; Modern Treasury is for ACH, wire, and RTP payment operations; decide on pricing model.
Feature comparison
| | | |
|---|---|---|
| Category | Payment Gateway / PSP | Payment Gateway / PSP |
| Pricing Model | usage | custom |
| Entry Price | custom pricing | — |
| Free Tier | No | No |
| Billing Complexity | medium | — |
| Developer Experience | 5/5 | 5/5 |
| Pricing Transparency | 4/5 | 1/5 |
| Lock-in Level | medium | medium |
| Migration Complexity | medium | — |
| Data Portability | Via API export | — |
| Enterprise | Available | — |
| GitHub Stars | 1.3k | 46 |
| License | Apache-2.0 | MIT |
Switching cost & lock-in
Modern Treasury
When to choose which
Choose Checkout.com when…
Choose Checkout.com if your project is SaaS with online payments, usage-based billing at custom pricing matches your volume, medium lock-in is an acceptable trade-off.
- SaaS with online payments
- E-commerce checkout
- Excellent developer documentation and SDKs
Not for: Offline, Internal projects
Choose Modern Treasury when…
Choose Modern Treasury if your project is ACH, wire, and RTP payment operations with real-time ledgering API, you are prepared for a sales-led custom-pricing conversation, medium lock-in is an acceptable trade-off.
- Deep ACH, wire, RTP, FedNow coverage
- Real-time ledgering built in
- Bank-native operations tooling
- Strong compliance and reconciliation features
Not for: Merchants who mainly need card acceptance
Common use cases
Checkout.com
- SaaS with online payments
- E-commerce checkout
- Marketplace payment processing
Modern Treasury
- ACH, wire, and RTP payment operations with real-time ledgering API
- FedNow and RTP real-time payment initiation for US fintech products
- Payment workflow automation with embedded double-entry accounting
- Reconciliation and ledgering for complex money movement fintech applications
Ready to explore?
Check each tool's dedicated page for deeper reviews, setup notes, and pros/cons.
Frequently asked questions
Is Checkout.com cheaper than Modern Treasury?
Checkout.com uses usage-based from custom pricing, and Modern Treasury uses custom (sales-led) pricing. The pricing models are different, so a direct cheaper-than comparison depends on your volume and usage pattern.
Can I migrate from Checkout.com to Modern Treasury?
Our data puts Checkout.com at medium lock-in, and Modern Treasury at medium lock-in (payment ops saas, custom integrations). Migration is feasible but not trivial — budget time for re-integration, data export, and parallel running before cutover.
Which has better developer experience?
Both score 5/5 on developer experience in our data, so there's no clear winner on that axis. Checkout.com does edge ahead on pricing/docs transparency (4/5 vs 1/5), which can make evaluation faster.
Is Modern Treasury a good alternative to Checkout.com?
Modern Treasury is a reasonable alternative to Checkout.com when your workload leans more toward platforms and fintechs running high-volume bank transfers and ledgering in the US than SaaS, E-commerce, Marketplace. The pricing model shifts too — Checkout.com is usage-based from custom pricing, Modern Treasury is custom (sales-led) pricing — so expect the cost profile to change as well. One caveat: Modern Treasury is explicitly not for merchants who mainly need card acceptance, so check that constraint against your use-case before switching.
Community Discussion
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