generated: '2026-06-20'
method: searched
source: >-
  developer.hellozai.com reference specs + https://status.hellozai.com/
versioning:
  scheme: per-api-document
  note: >-
    Each API ships its own version in the OpenAPI info (Assembly 2.3, PayTo
    1.4-external, Virtual Accounts/PayIDs 0.12-external, Async 1.0.0). No global
    version header; the Assembly API is served without a URI version segment.
  current:
    assembly: "2.3"
    payto: "1.4-external"
    virtual-accounts-payid: "0.12-external"
    async: "1.0.0"
environments:
  live: https://secure.api.promisepay.com
  pre_live_sandbox: https://test.api.promisepay.com
deprecation:
  policy_url: null
  sunset_header: false
  note: >-
    No published dated deprecation policy or RFC 8594 Sunset/Deprecation header
    support found. Deprecations are signalled inline in the reference docs.
status_page: https://status.hellozai.com/
deprecated_operations:
  - spec: openapi/zai-assembly-api.json
    operationId: releasePayment
    note: "Release Payment — legacy Escrow flow, marked Deprecated / Do Not Use."