--- title: "Getting Started" description: "Learn how to verify digital credentials via OID4VP and DC API using the walt.id Verifier2 API." stack: "Community Stack (open source) — version 1.1.1" stack_version: "1.1.1" stack_comparison: https://docs.walt.id/community-vs-enterprise.md canonical_url: https://docs.walt.id/community-stack/verifier2/getting-started generated: 2026-10-01 --- # Getting Started **Verifier2** is an open-source HTTP API service that acts as the relying party in a digital credential exchange. It sends a presentation request to a holder's wallet, receives the signed credential presentation in response, and validates it against configurable policies. Credential exchange runs over [**OpenID for Verifiable Presentations (OID4VP)**](https://docs.walt.id/concepts/data-exchange-protocols/openid4vp.md) v1.0, with additional support for the [Digital Credentials API](https://docs.walt.id/concepts/data-exchange-protocols/dc-api.md) and [ISO/IEC 18013-7](https://docs.walt.id/concepts/data-exchange-protocols.md). Supported credential formats include [**W3C Verifiable Credential (W3C VC)**](https://docs.walt.id/concepts/digital-credentials/verifiable-credentials-w3c.md), [**SD-JWT VC (IETF)**](https://docs.walt.id/concepts/digital-credentials/sd-jwt-vc.md), [ISO 18013-5 mDL](https://docs.walt.id/concepts/digital-credentials/mdoc-mdl-iso.md), and ISO 23220 PhotoID. **Note:** The original verifier service, which supports Draft 14 and Draft 20 of the OID4VP specification, is deprecated. It remains available for existing integrations — see the existing [Verifier documentation](https://docs.walt.id/community-stack/verifier/getting-started.md). For new projects, use **Verifier2** instead. If you're migrating from Verifier (v1), see the [Migration Guide](https://docs.walt.id/community-stack/verifier2/migration-from-verifier1.md). ## Supported Standards Verifier2 supports the following 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), ISO 23220 PhotoID | | **Credential Exchange:** | [OID4VP](https://docs.walt.id/concepts/data-exchange-protocols.md) (Version 1.0), [ISO/IEC 18013-7](https://docs.walt.id/concepts/data-exchange-protocols.md), [Digital Credentials API](https://docs.walt.id/concepts/data-exchange-protocols/dc-api.md) | | **Signature Algorithms:** | ed25519, secp256k1, secp256r1, RSA | ## Setup If you are new to the stack, the **Docker Compose quick start** is the fastest way to get running — it spins up the Verifier, Issuer, and Wallet together in one command, which mirrors a real verification flow. Once running, the API is available at `http://localhost:7004`. **Note:** Verifier2 listens on port `7004` by default, whether run standalone or via Docker Compose. The original Verifier (v1) runs on port `7003`, avoiding a conflict when both run together. - [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. _(Recommended for first-time users)_ - [Run standalone with Docker](https://docs.walt.id/community-stack/verifier2/setup.md) - Pull and run the verifier container in isolation using the [walt.id identity repo](https://github.com/walt-id/waltid-identity.git). See the [configuration reference](https://docs.walt.id/community-stack/verifier2/configurations) for available config options. - [Full API reference](https://docs.walt.id/community-stack/verifier2/full-api-reference.md) - Explore all available endpoints via Swagger. ## Features - [Credential Verification](https://docs.walt.id/community-stack/verifier2/credential-verification/vc-oid4vp.md) - Request and verify various digital credential types and formats ([W3C](https://docs.walt.id/community-stack/verifier2/credential-verification/vc-oid4vp.md), [SD-JWT](https://docs.walt.id/community-stack/verifier2/credential-verification/sd-jwt-vc-oid4vp.md), [mDL](https://docs.walt.id/community-stack/verifier2/credential-verification/mdl-oid4vp.md)) via OID4VP. - [Policies](https://docs.walt.id/community-stack/verifier2/credential-verification/policies/overview) - Apply built-in or custom policies to control validation checks such as expiry, schema conformance, and trust anchor verification. - [Callbacks & SSE](https://docs.walt.id/community-stack/verifier2/callback-and-sse.md) - Get notified when a verification session completes via a webhook callback or a Server-Sent Events (SSE) stream, including the session status, policy results, and presented credentials. ## Start Verifying Choose the credential type and exchange protocol that matches your use case: - [W3C Verifiable Credentials via OID4VP](https://docs.walt.id/community-stack/verifier2/credential-verification/vc-oid4vp.md) - [SD-JWT VC via OID4VP](https://docs.walt.id/community-stack/verifier2/credential-verification/sd-jwt-vc-oid4vp.md) - [Mobile Driver's Licenses (mDL) via OID4VP](https://docs.walt.id/community-stack/verifier2/credential-verification/mdl-oid4vp.md) - [Verifiable Credentials via Digital Credentials API](https://docs.walt.id/community-stack/verifier2/credential-verification/dc-api.md)