Koin
Koin is a Brazilian payments and fraud-prevention provider operating across Latin America, offering merchants a single private-key API for BNPL ("Pix Parcelado" / installment payments without a card), instant Pix, card payments with anti-fraud, crypto and Pix payouts, refunds, cancellations and account-validation. Its Antifraud API scores e-commerce, wire-transfer and account-takeover events with device fingerprinting, 3-D Secure and strategy-based recovery, while an Onboarding API registers merchants. Koin publishes a ReadMe-hosted developer portal with OpenAPI 3 contracts, first-party Magento 2, WooCommerce, VTEX, Shopify, Wake, Nuvemshop and Tiendanube plugins, and iOS/Android checkout SDKs. Founded in Brazil and backed by Speedinvest (2018), Koin was acquired by Despegar in 2020.
Koin publishes 16 APIs on the APIs.io network, including Access API, Account Take Over Services API, Availability Services API, and 13 more. Tagged areas include Payments, Fraud Prevention, Buy Now Pay Later, Pix, and E-Commerce.
The Koin catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Koin’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 25 more developer resources.
Kin Score
APIs 16
Individual APIs this provider publishes, each with its own machine-readable definition.
Koin Access API
The Access API from Koin — 1 operation(s) for access.
Koin Account Take Over Services API
The Account Take Over Services API from Koin — 2 operation(s) for account take over services.
Koin Availability Services API
The Availability Services API from Koin — 1 operation(s) for availability services.
Koin Communication Services API
The Communication Services API from Koin — 1 operation(s) for communication services.
Koin Ecommerce API
The Ecommerce API from Koin — 2 operation(s) for ecommerce.
Koin Notification Services Sales API
The Notification Services Sales API from Koin — 1 operation(s) for notification services sales.
Koin Onboarding Services API
Onboarding Service
Koin Payment Service Provider API
The Payment Service Provider API from Koin — 1 operation(s) for payment service provider.
Koin Payment Services API
The Payment Services API from Koin — 5 operation(s) for payment services.
Koin PaymentRequest API
The PaymentRequest API from Koin — 2 operation(s) for paymentrequest.
Koin Payout Services API
The Payout Services API from Koin — 4 operation(s) for payout services.
Koin Recipient Services Account API
The Recipient Services Account API from Koin — 1 operation(s) for recipient services account.
Koin Refund Services API
The Refund Services API from Koin — 2 operation(s) for refund services.
Koin Support Services API
The Support Services API from Koin — 3 operation(s) for support services.
Koin Tokenize Services API
The Tokenize Services API from Koin — 1 operation(s) for tokenize services.
Koin WireTransfer API
The WireTransfer API from Koin — 1 operation(s) for wiretransfer.
Scroll for all 16
MCP Servers 1
Model Context Protocol servers that expose these APIs to AI agents.
koin-mcp.yml
MCP SERVEREvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Koin Payments Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Resources
Get Started 4
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 8
Pagination, idempotency, versioning, errors, and events
Scroll for all 8
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 4
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API