overlay: 1.0.0
info:
  title: API Evangelist enhancements for The Helcim API
  version: 1.0.0
extends: openapi/helcim-api.json
actions:
- target: $.info
  update:
    x-apievangelist-enrichment: '2026-07-24'
    x-api-token-header: api-token
    x-idempotency-key-header: idempotency-key
    x-idempotency-required-on: all write payment operations (purchase, preauth, capture, verify, refund,
      reverse, withdraw, ACH withdraw/refund/void/cancel, ACH batch settle)
    x-rate-limits:
      concurrent: 5
      per_minute: 100
      per_hour: 3000
      algorithm: sliding-window
      exceeded_status: 429
    x-status-page: https://status.helcim.com
    x-compliance:
    - PCI DSS