---
title: "Service Catalog"
description: "Services provide the functional capabilities for decentralized identity and ID wallets. They live inside tenants or sub-tenants, and each instance gets its own configuration so you can run multiple variants of the same…"
stack: "Enterprise Stack (commercial) — 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/enterprise-stack/services
generated: 2026-07-20
---
# Service Catalog

Services provide the functional capabilities for decentralized identity and ID wallets. They live inside tenants or sub-tenants, and each instance gets its own configuration so you can run multiple variants of the same service (for example, one issuer for W3C VCs and another for SD-JWT VCs). Use this catalog once you know which capability you want to deploy and need the corresponding guide.

### Need a different starting point?

**Note:**

- Want the conceptual model (resource tree, service types, dependency patterns)? Go to [Enterprise Foundations → Services](https://docs.walt.id/enterprise-stack/foundations.md#services).
- Ready to manage lifecycle, configuration, or metadata across existing services? See [Administration → Service Operations](https://docs.walt.id/enterprise-stack/administration/services/overview.md).

### How the catalog is organized

The list below is split into **operational** services (they handle the runtime operations–issuance, verification, wallet actions) and **storage & registry** services (they persist state and expose it). Pick whichever category matches the capability you're looking for, then dive into the linked guide.

## Operational services

- [KMS Service](https://docs.walt.id/enterprise-stack/services/key-management-service/overview.md) - Manage cryptographic keys for signing and encryption workloads.
- [Issuer2 Service](https://docs.walt.id/enterprise-stack/services/issuer2-service/overview.md) - Sign & issue digital credentials (W3C VC, SD-JWT VC, mDL) using the OpenID4VCI 1.0 specification.
- [Issuer Service](https://docs.walt.id/enterprise-stack/services/issuer-service/overview.md) - Sign & issue digital credentials (W3C VC, SD-JWT VC, mDL) with Draft 11, 13 OpenID4VCI specifications.
- [Verifier2 Service](https://docs.walt.id/enterprise-stack/services/verifier2-service/overview.md) - Request & verify digital credentials using the OpenID4VP 1.0 specification.
- [Verifier Service](https://docs.walt.id/enterprise-stack/services/verifier-service/overview.md) - Request & verify digital credentials using the OpenID4VP Draft14, 20 specifications.
- [Wallet Service](https://docs.walt.id/enterprise-stack/services/wallet-service/overview.md) - Run identity wallets for individuals or organizations. Supports Draft 11, 13 OpenID4VCI specifications + Draft 14, 20 OpenID4VP specifications + OpenID4VP 1.0 specification.
- [DID Service](https://docs.walt.id/enterprise-stack/services/did-service/overview.md) - Create decentralized identifiers across supported DID methods.
- [X.509 Certificate Service](https://docs.walt.id/enterprise-stack/services/x509-service/overview.md) - Issue ISO/IEC 18013-5 IACA and Document Signer certificates and optionally persist them to attached X.509 Stores.
- [Credential Status Service](https://docs.walt.id/enterprise-stack/services/credential-status-service/overview.md) - Manage credential status lists (revocation, suspension, etc.).
- [Client Attestation Service](https://docs.walt.id/enterprise-stack/services/client-attestation-service/overview.md) - Issue and verify wallet attestations for secure credential issuance flows.

## Storage & registry services

- [DID Store Service](https://docs.walt.id/enterprise-stack/services/did-store-service/overview.md) - Store and manage DIDs and DID documents.
- [Credential Store Service](https://docs.walt.id/enterprise-stack/services/credential-store-service/overview.md) - Store and query issued credentials.
- [X.509 Store Service](https://docs.walt.id/enterprise-stack/services/x509-store-service/overview.md) - Store and manage generic X.509 certificates and VICAL entries.
- [VICAL Service](https://docs.walt.id/enterprise-stack/services/vical-service/overview.md) - Publish signed VICAL feeds and expose latest or version-specific registry endpoints backed by linked X.509 stores.
- [Trust Registry Service](https://docs.walt.id/enterprise-stack/services/trust-registry-service/overview.md) - Manage ETSI trust lists (TSL, LoTE) for credential verification against official trust frameworks.
- [Holder Policy Store Service](https://docs.walt.id/enterprise-stack/services/holder-policy-store-service/overview.md) - Store and manage holder policies for silent issuance or wallet-driven verification.
- [DID Registry](https://docs.walt.id/enterprise-stack/services/did-registry/overview.md) - Host did:web documents and expose them over HTTPS.