> For the complete documentation index, see [llms.txt](https://docs.empe.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.empe.io/getting-started/tutorial/overview.md). # Overview This tutorial guides you through building a working environment that issues and verifies Verifiable Credentials within the Empeiria ecosystem. You'll stand up a small backend that talks to the Issuer and Verifier APIs, create a credential schema, issue a credential to a wallet, and gate access to a protected page behind a successful verification. The credential flows you'll implement are built on open standards: **OpenID4VCI** for issuance and **OpenID4VP** for verification, with credentials issued in **SD-JWT VC** format so the holder can selectively disclose individual claims. **What You Will Learn:** * How to stand up a hosted deployment with the One-Click Deployment platform, then create and configure an Issuer and Verifier against that deployment through its API and operator console. * How to authenticate to the Issuer and Verifier APIs using an OIDC access token — an `Authorization: Bearer ` header (with the local-development shortcut of running the API with `AUTH_DISABLED=true`). * How to run a simple Express-based backend that integrates with the Issuer and Verifier APIs. * How to create a credential schema and issue credentials against it. * How to implement verification logic so that only holders of a valid credential can access a protected resource. * How to set up a simple frontend that displays QR codes for the issuance and verification flows. * How to test the full flow using a reference mobile wallet application (iOS/Android). **Prerequisites:** * Access to the [One-Click Deployment platform](https://oneclick.empe.io/). * Node.js and npm installed. * Basic knowledge of JavaScript/TypeScript and Node.js. * A reference Empe DID Wallet: * Android: * iOS: By the end of this tutorial, you'll have a demo that issues a "KYC Verifiable Credential" and verifies it to grant access to a protected dashboard. --- # Agent Instructions This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com. ## Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation by asking a question. Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters: ``` GET https://docs.empe.io/getting-started/tutorial/overview.md?ask=&goal= ``` `ask` is the immediate question: it should be specific, self-contained, and written in natural language. `goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.