iGrant.io holder backend (wallet side: receive, hold, present)

When to use

Build or extend the server that a holder (wallet) frontend talks to - the organisation is the wallet that receives and presents credentials, e.g. a European Business Wallet. It composes igrantio-backend-proxy (holder allow-list) + the igrantio-holder-notifications SSE relay. For the other two roles use igrantio-issuer-backend / igrantio-verifier-backend. Read igrantio-ows-overview first; the exact holder endpoint contract lives in references/holder-api-reference.md.

Prerequisites

• An iGrant.io Organisation Wallet Suite (OWS) API key. Get it from support@igrant.io. Keep it on the server, in an environment variable or a secret manager. The browser never sees it.
• The OWS environment the key belongs to. The default is demo (https://demo-api.igrant.io). Use staging (https://staging-api.igrant.io) only when the integrator asks for it. A key works only in its own environment.