Payments APIs

Popular first highlights editorial picks, then ranks providers by monthly downloads of their official SDKs on npm and PyPI (measured 2026-10-18). Others follow A–Z.

Clearhaus

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Cleva

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Concardis

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Contis

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Coupa Pay

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Coupay

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Crezco

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Cross River

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CyberSource

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DC Bank

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DEMIVOLT

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Directa24

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DNA Payments. An intelligent payment ecosystem

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DOCOMO Digital

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Dojo

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Edenred

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EFTPOS

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Elavon

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emerchantpay

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EML

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Enfuce

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equensWorldline

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Expertus

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Facebook Pay

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Fast

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Finix

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fire.com

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FIS

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Fiserv

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Fitbit Pay

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FlickPay

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Flywire

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Form3

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FreedomPay

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Galileo Financial Technologies

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Global Payments

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Google Pay

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GPS

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Green Dot

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iATS Payments

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ICEPAY

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ICS

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iDEAL

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ImaliPay

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Ingenico Group

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Inhouse Pay

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InstaPayments

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Interac

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Counts reflect unique named profiles assigned to this category. Documentation and integration details vary by provider.