Head to head
Adyen vs Mollie
As a payments API, Mollie rates higher on the APIbenchmarks Index, 81.4 to 76.1, a 5.3-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Adyen | Mollie |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 76.1 | 81.4 |
Specifications
| Adyen | Mollie | |
|---|---|---|
| Best for | Enterprise unified commerce acquirer | European local-payment-methods PSP |
| Free tier | No | No setup/monthly fee; test mode free, pay per transaction |
| Pricing | Interchange++ (€0.11 + IC + ~0.6%) | Per transaction (1.8% + €0.25 EU cards) |
| Official SDKs | 12 languages | 8 languages |
Is Adyen better than Mollie?
On the APIbenchmarks Index, Mollie rates higher (81.4 vs 76.1). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
Mollie leads by 5.3 points (81.4 vs 76.1) and wins 1 of 4 criteria; Adyen wins 2.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 84 | 84 | Tie |
| Reliability | 95 | 80 | |
| Ecosystem & SDKs | 78 | 76 | |
| Accessibility | 38 | 86 |
Choose Adyen if… / choose Mollie if…
- →reliability matters most to you (95 vs 80)
- →ecosystem & sdks matters most to you (78 vs 76)
- →you need broad SDK coverage (12 official SDKs vs 8)
- →your use case matches its focus: enterprise unified commerce acquirer
- →accessibility matters most to you (86 vs 38)
- →you want a free tier to start (No setup/monthly fee; test mode free, pay per transaction)
- →your use case matches its focus: european local-payment-methods psp
Pricing side by side
- Model
- Interchange++ (€0.11 + IC + ~0.6%)
- Free tier
- No
- Interchange++ (standard)Interchange + scheme fees + ~0.60% acquirer markup
- Per-transaction processing fee~€0.10–€0.15 per transaction
- No recurring platform fees$0 setup / monthly / integration / closure
- Model
- Per transaction (1.8% + €0.25 EU cards)
- Free tier
- No setup/monthly fee; test mode free, pay per transaction
- Online, Cards (EEA consumer Visa/Mastercard)1.80% + €0.25
- Online, Cards (EEA commercial / American Express)2.90% + €0.25
- iDEAL / Wero€0.32
- Bancontact1.40% + €0.25
- SEPA Direct Debit / Bank Transfer€0.35 / €0.25
- In-person, Pro Plan€20 / month
Vendor-published pricing, verified 2026-06-27 (Adyen) and 2026-06-27 (Mollie).
SDK and language coverage
Both · 5
JavaPHPPythonGoRuby
Only Adyen · 7
Node.js.NET (C#)Adyen Web (JavaScript) Drop-in/ComponentsiOS (Swift/Objective-C)AndroidReact NativeTerminal API libraries (C#, Go, Java, Node, PHP, Ruby)
Only Mollie · 3
Laravel Cashier (PHP)Node.js / TypeScript (mollie-api-node)C# / .NET
Strengths and weaknesses
- +Single unified API and integration across online, in-app, and in-store (POS) with consistent shopper recognition
- +Interchange++ transparent pricing rather than blended rates, clear visibility into interchange, scheme fees, and markup
- +Strong developer experience: OpenAPI specs, interactive API Explorer, generated SDKs, sandbox with test cards, short release cycles
- –Pricing and minimum monthly invoice make it expensive/opaque for small and low-volume merchants
- –Aggressive automated risk/fraud blocks with no clear appeal process, and reports of frozen or held funds
- –Email-only support with no phone line; slow IT/support responsiveness is a recurring complaint
- +Transparent blended pricing with no setup, monthly minimum or cancellation fees on the standard online product, you pay only on successful transactions
- +Excellent European payment-method coverage out of the box (iDEAL, Bancontact, Klarna, SEPA, PayPal, Apple/Google Pay, 40+ methods)
- +Clean, well-documented REST API with reliable webhooks and strong recurring/subscription handling that developers praise
- –Recurring, serious merchant complaints about sudden account holds, collateral reserves and frozen funds with poor communication (reflected in a low 3.2/5 Capterra score)
- –Settlement/payout timing in practice can lag the documented ~5 business days, with reports of cards taking 2–3 weeks and Klarna up to two months in disputed cases
- –Europe-centric: weaker fit than Stripe/Adyen for US-first or truly global expansion
Adyen vs Mollie: questions
- Which has better documentation, Adyen or Mollie?
- Adyen and Mollie score the same on documentation and developer experience (84).
- Which is more reliable, Adyen or Mollie?
- Adyen scores higher on reliability: 95 vs 80 out of 100.
- Do Adyen and Mollie have a free tier?
- Adyen: no free tier. Mollie: yes (No setup/monthly fee; test mode free, pay per transaction).
- How are Adyen and Mollie priced?
- Adyen: Interchange++ (€0.11 + IC + ~0.6%). Mollie: Per transaction (1.8% + €0.25 EU cards).
- Which has more official SDKs?
- Adyen lists 12 official SDKs, Mollie lists 8.