Koin · OpenAPI Overlay 1.0.0

API Evangelist enhancements for Koin Antifraud API

4 actions 4 updates security extends openapi/koin-antifraud-wire-transfer-openapi.json

Derived by API Evangelist Built from the contracts Koin publishes. Koin did not publish this file.

View Overlay File View on GitHub Overlay Specification

What the actions change

x-apievangelist-providerx-apievangelist-generatedx-apievangelist-artifactssecuritySchemessecurityx-idempotency

Targets 4

$.info

$.components

$.paths['/v1/antifraud/evaluations'].post

OpenAPI Overlay

overlay: 1.0.0
info:
  title: API Evangelist enhancements for Koin Antifraud API
  version: 1.0.0
extends: openapi/koin-antifraud-wire-transfer-openapi.json
actions:
- target: $.info
  update:
    x-apievangelist-provider: koin
    x-apievangelist-generated: '2026-07-19'
    x-apievangelist-artifacts:
      authentication: authentication/koin-authentication.yml
      conventions: conventions/koin-conventions.yml
      errors: errors/koin-problem-types.yml
      decline_codes: errors/koin-decline-codes.yml
      webhooks: asyncapi/koin-payments-webhooks.yml
      sandbox: sandbox/koin-sandbox.yml
      lifecycle: lifecycle/koin-lifecycle.yml
      data_model: data-model/koin-data-model.yml
- target: $.components
  update:
    securitySchemes:
      KoinPrivateKey:
        type: http
        scheme: bearer
        description: 'Koin private key, format sk_ + 32 alphanumeric characters, issued during merchant
          onboarding. Sent as Authorization: Bearer <private key>. See https://api-docs.koin.com.br/docs/security-scheme'
- target: $
  update:
    security:
    - KoinPrivateKey: []
- target: $.paths['/v1/antifraud/evaluations'].post
  update:
    x-idempotency:
      model: reference-id
      key_field: reference_id
      note: Koin requires a stable unique reference_id per business transaction (integration requirement
        COR1); replays must not produce duplicate side effects (INF4/CBK3). Duplicate submissions surface
        as HTTP 409 or business codes 511/998.
      artifact: conventions/koin-conventions.yml

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