Fintech 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.

Flagstone IM

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Flanks

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Flinks

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Flux

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Flybits

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FormFree®

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FourthLine

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Freetrade

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Fundbox

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Funding Options

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FUNDING XCHANGE

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FundStory

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Grip app

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Growth Street

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Guideline

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Habito

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Hokodo

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Homelyfe

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Hometap

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Hubpay

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Hydrogen

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HyperJar

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iBanFirst

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Ibanity

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ICS

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Instantor

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Integrated Finance

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Intelliflo

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Isabel 6

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Isabel Group

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J.P. Morgan Treasury Payments

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JoomPay

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Klarna

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Knot API

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Koppr

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Kwara

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LendingClub

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Liveoak Technologies

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Luego

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lyanthe

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Lydia

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M1 Finance

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MANTL

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MarketInvoice

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Mastercard Start Path

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Max

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Meemo

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Meld

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