Changelog

Public release notes for the Mosaic Hub API. Breaking changes only ship under a new URL version.

v1.0.0 - 2026-05-01

• Initial public release of the Mosaic Hub API.
• Authentication. HMAC-SHA256 request signing with timestamp window and nonce-based replay protection.
• Numbers / Spending Methods. POST /v1/numbers-spending-methods ingests a supplier bill (JSON + optional PDF) as a draft transaction.
• Liveness probe. GET /v1/healthz.
• Error model. RFC 7807 problem documents with stable type URIs under https://api.mosaic.co.za/problems/.
• Idempotency. Required Idempotency-Key header on all write endpoints with replay-safe semantics.
• OpenAPI 3.2.0. Machine-readable spec published at /mosaic-hub-open-api.json.