---
title: "Getting Started"
description: "Learn how to verify W3C JWT and SD-JWT credentials via OID4VP using the walt.id verifier API."
stack: "Community Stack (open source) — version 0.21.0"
stack_version: "0.21.0"
stack_comparison: https://docs.walt.id/community-vs-enterprise.md
canonical_url: https://docs.walt.id/community-stack/verifier/getting-started
generated: 2026-07-20
---
# Getting Started

Video: https://www.youtube.com/watch?v=RpAiWkbqb2c

<br />

The walt.id verifier API allows you to **verify various types of digital credentials (W3C, SD-JWT, mDL) via OID4VP**. The issuer and
subject can be identified by various types of DIDs (e.g. did:key, did:jwk, did:web, ...) or just a key. Use [policies](https://docs.walt.id/community-stack/verifier/credential-verification/policies/overview.md)
to customize the verification process.

## Supported Standards

|                          |                                                                                                                                                                                                                                                              |
|:-------------------------|:-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| **Credential Formats:**  | [SD-JWT VC (IETF)](https://docs.walt.id/concepts/digital-credentials/sd-jwt-vc.md), [W3C VC (v1.1+, v2.0)](https://docs.walt.id/concepts/digital-credentials/verifiable-credentials-w3c.md), [ISO 18013-5 mDL](https://docs.walt.id/concepts/digital-credentials/mdoc-mdl-iso.md) |
| **Credential Exchange:** | [OID4VP](https://docs.walt.id/concepts/data-exchange-protocols.md) (Draft 14/20, v1 available via Verifier2 - [learn more here](https://github.com/walt-id/waltid-identity/tree/main/waltid-services/waltid-verifier-api2) for more info), [ISO/IEC 18013-7](https://docs.walt.id/concepts/data-exchange-protocols.md)                                                                                |
| **Signature Algorithms:** | ed25519, secp256k1, secp256r1, RSA                                                                                                                                                                                                                           |

## Setup

- [Open-Source](https://docs.walt.id/community-stack/verifier/setup.md) - Use the verifier API available via the [walt.id identity repo](https://github.com/walt-id/waltid-identity.git).
- [Docker compose quick start](https://docs.walt.id/community-stack/home.md#quick-start) - Spin up the verifier API locally together with the other services.
- [Full API reference](https://docs.walt.id/community-stack/verifier/full-api-reference.md) - Explore all available endpoints via Swagger.

## Features

- [Credential Verification](https://docs.walt.id/community-stack/verifier/credential-verification/overview.md) - Request and verify various digital credential types and formats ([W3C](https://docs.walt.id/community-stack/verifier/credential-verification/vc-oid4vc.md), [SD-JWT](https://docs.walt.id/community-stack/verifier/credential-verification/sd-jwt-vc-oid4vc.md), [mDL](https://docs.walt.id/community-stack/verifier/credential-verification/mdl-oid4vc.md)) via OID4VP.
- [Policies](https://docs.walt.id/community-stack/verifier/credential-verification/policies/overview.md) - Use policies to tailor validation behavior and checks to your use-case.

Checkout the full feature overview [here](https://docs.walt.id/community-stack/verifier/features).

## Ecosystems

- [EBSI](https://docs.walt.id/community-stack/verifier/ecosystems/ebsi/overview.md) - Verify credentials that are compliant with the European Blockchain Services Infrastructure (EBSI).

## Configurations

Use [the feature manager](https://docs.walt.id/community-stack/verifier/configurations/feature-manager.md) to enable or disable API functionality depending on your use-case.

## Guides

- [How to Verify a W3C Verifiable Credential (JWT / SD-JWT) via OID4VP](https://docs.walt.id/community-stack/verifier/credential-verification/vc-oid4vc.md)
- [How to Verify an SD-JWT-based Verifiable Credential (IETF | SD-JWT VC) via OID4VP](https://docs.walt.id/community-stack/verifier/credential-verification/sd-jwt-vc-oid4vc.md)
- [How to Verify Mobile Driver’s Licenses (ISO/IEC 18013-5 mDL) via OID4VP](https://docs.walt.id/community-stack/verifier/credential-verification/mdl-oid4vc.md)
- [Full API reference](https://docs.walt.id/community-stack/verifier/full-api-reference.md)