Adyen vs Fiserv: Payment Processors Comparison (2026)
An independent side-by-side comparison of Adyen and Fiserv for payment processors buyers — pricing, features, integrations, and how often each is cited by major AI engines.
AI Citation Scorecard
How often each is cited by major AI engines when buyers ask payment processors questions. Last 90 days across ChatGPT, Perplexity, Gemini, Claude, and Copilot.
Too early to call — probes still building data.
ChatGPT
Adyen
4 / 6 probes
67%
ExcellentFiserv
Tracking…
No data yet
Perplexity
Adyen
3 / 7 probes
43%
GoodFiserv
Tracking…
No data yet
Gemini
Adyen
1 / 6 probes
17%
AverageFiserv
Tracking…
No data yet
Claude
Adyen
4 / 6 probes
67%
ExcellentFiserv
Tracking…
No data yet
Copilot
Adyen
3 / 6 probes
50%
ExcellentFiserv
Tracking…
No data yet
Scale:NoneLowFairStrongExcellent
Probes run hourly; each (engine × query) combo retests every ~3 days.
Pricing
Key Features
Adyen
- ✓No setup fee or monthly fees
- ✓One integration for all payment methods
- ✓Flexible payouts in multiple currencies
- ✓Transparency in pricing with Interchange++
Fiserv
Feature data is being indexed.
When to choose Adyen
Choose Adyen if your team prioritizes its strengths over Fiserv's. Full guidance populates as Adyen's feature data is indexed.
When to choose Fiserv
Choose Fiserv if your team prioritizes its strengths over Adyen's. Full guidance populates as Fiserv's feature data is indexed.