Changelog

2026-07-17 · v1 general availability Stable

Added

• Full error reference at /docs/errors.html with stable error.code values.
• Rate-limit headers (X-RateLimit-*, Retry-After) on every response.
• Dedicated idempotency guide — Idempotency-Key header, 24 h retention.
• Sandbox trigger endpoint for webhook replay and lifecycle advancement.
• refunds capability across all providers (Stripe, Bridge, Compose, Monerium).

Changed

• Error envelope now includes request_id, type, retryable, and doc_url.
• OpenAPI spec bumped to 3.1 with security scheme components.

2026-07-10 · Developer platform Stable

• Public API keys with scopes, expires_at, and IP allow-list.
• OAuth 2.0 client credentials flow.
• HMAC-SHA256 signed webhooks with replay endpoint and exponential-backoff dispatcher.
• Swagger UI + Redoc at /api-docs.html.
• TypeScript SDK (@/lib/qashx-sdk) and Python SDK (sdks/python/).

2026-07-01 · QashX Pay unification Stable

• Unified qashx_payments resource across card, SEPA, SWIFT, USDC, USDT, EURC, EURe.
• Capability Registry + Routing Engine — clients request a capability, not a provider.
• Double-entry ledger via qashx_ledger_entries.

Pre-GA · v0 preview Retired

Private beta. Not supported. Migrate to v1.