Payment API Providers

Cal.com is an open-source scheduling platform that provides appointment booking, team scheduling, and calendar manageme...

GlossGenius is an all-in-one platform for salons, spas, and medspas with booking, payments, marketing, and client manag...

Coupa is a cloud-based business spend management platform that unifies procurement, invoicing, expenses, and payments t...

Commerce Layer provides a headless commerce API for managing orders, inventory, pricing, and promotions across any fron...

Brazilian fintech (PagBank/PagSeguro) providing card acceptance, banking and lending services to merchants.

Canvas by Instructure is a cloud-native learning management system used by K-12 schools, colleges, and corporations for...

Indian payment gateway and small business platform offering links, online store and smart logistics for D2C sellers.

Jane App provides practice management software for health and wellness practitioners with scheduling, charting, billing...

Hyperline is a billing platform for SaaS companies providing subscription management, usage-based billing, invoicing, a...

European payment service provider (formerly Heidelpay) offering omnichannel acceptance, risk management and invoicing f...

Finicity by Mastercard provides open banking APIs for account verification, financial data access, and lending insights.

Elastic Path provides a composable, API-first commerce platform enabling brands to create unique shopping experiences w...

GoCardless simplifies the collection of recurring and one-off bank payments directly from customer bank accounts.

Local Stripe presence offering Pix, boleto and card acceptance for Brazilian merchants building digital businesses.

Brazilian payment acquirer owned by Itaú Unibanco offering POS terminals, online gateway and Pix for merchants.

HashiCorp Vault is a secrets management and data protection platform that provides centralized secret storage, encrypti...

Backblaze B2 is an S3-compatible cloud storage service offering reliable object storage at a fraction of the cost of ma...

Brazilian online payment platform offering card processing, boleto, Pix and split-payment for marketplaces and platform...

Licensed German payment institution offering omnichannel checkout, escrow and voucher management for online and retail...

German full-service payment institution offering international payment methods, subscription billing and fraud preventi...

Brazilian payment acquirer owned by Santander providing card, Pix and online payment acceptance to merchants.

athenahealth provides cloud-based EHR, practice management, medical billing, and patient engagement solutions for healt...

ezCater is a business catering marketplace and management platform connecting corporate offices with local catering pro...

Major Brazilian acquirer offering card processing, POS terminals and digital payment services to merchants nationwide.

Change Healthcare provides claims management, revenue cycle, and payment solutions for healthcare providers and payers.

Crossmint provides APIs for wallets, payments, onboarding, and commerce flows used by teams building onchain and digita...

Boulevard is the fastest-growing client experience platform for salons, spas, and medspas with booking, POS, and client...

Headway connects patients with therapists who accept insurance, handling credentialing, billing, and provider directory...

Instantly is a cold email outreach platform with unlimited sending accounts, AI-powered email warmup, lead databases, a...

Clay is a no-code sales intelligence platform that automates lead enrichment and personalized outreach by aggregating d...