igrantio-credential-schema-loyalty-cardlisted

# Loyalty Card credential schema ## When to use Use this skill when you issue or ask for a **Loyalty Card**. The credential holds the membership of a customer in a loyalty programme: the card identifier and its status, the organisation that runs the programme, the contact data of the customer, and the balance of points, miles and wallet money. The registry publishes this schema in **all three formats**: | Format | Metadata flag | Identifier to send | | --- | --- | --- | | `dc+sd-jwt` | `isSdJwt: true` | `vct` | | `jwt_vc_json` | `isJwt: true` | `type` | | `mso_mdoc` | `isMsoMdoc: true` | `doctype` | This page describes registry version **2025.7.1**, the latest version of the template. ## Prerequisites - An **iGrant.io Organisation Wallet Suite (OWS) API key**. Get it from [support@igrant.io](mailto: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. ## Ask the integrator first Ask one question at a time. Wait for the answer. Give the recommended default with each question. Look up facts in the project (framework, environment variables, an existing backend) instead of asking for them. Record the answers before you write code. 1. **Environment** - demo or staging? _Defa