> For the complete documentation index, see [llms.txt](https://gl-docs.gitbook.io/zkpass/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://gl-docs.gitbook.io/zkpass/core-components.md).

# Core Components

- [Service Architecture](https://gl-docs.gitbook.io/zkpass/core-components/service-architecture.md)
- [RESTful API Web Service](https://gl-docs.gitbook.io/zkpass/core-components/service-architecture/restful-api-web-service.md)
- [zkPass Query Host](https://gl-docs.gitbook.io/zkpass/core-components/service-architecture/zkpass-query-host.md)
- [zkPass Client Roles](https://gl-docs.gitbook.io/zkpass/core-components/zkpass-client-roles.md): zkPass follows a robust trust model inspired by the W3C Decentralized Identifiers (DID) standards. Within the zkPass ecosystem, we define three client roles which participate in the zkPass ecosystem.
- [Trust Models](https://gl-docs.gitbook.io/zkpass/core-components/trust-models.md)
- [Data Privacy Trust Model](https://gl-docs.gitbook.io/zkpass/core-components/trust-models/data-privacy-trust-model.md)
- [Data Integrity Trust Model](https://gl-docs.gitbook.io/zkpass/core-components/trust-models/data-integrity-trust-model.md)
- [Computation Integrity Trust Model](https://gl-docs.gitbook.io/zkpass/core-components/trust-models/computation-integrity-trust-model.md)
- [zkPass Module](https://gl-docs.gitbook.io/zkpass/core-components/zkpass-module.md)


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