> For the complete documentation index, see [llms.txt](https://docs.hypersign.id/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hypersign.id/hypersign-ssi/api-doc.md).

# API Reference

Dive into our API documentation to create innovative identity products on the Entity Studio infrastructure.

Register your application on [Entity Studio Developer Dashboard](/hypersign-developer-dashboard/developer-dashboard.md) and generate your API secret Key before proceeding. 

## Authentication

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Authentication</strong></mark></td><td><em><mark style="color:yellow;">Generate Access Token using API secret key to start accessing SSI APIs</mark></em></td><td></td><td><a href="/hypersign-ssi/api-doc/authentication.md">Service Authentication API</a></td></tr></tbody></table>

### Self Sovereign Identity (SSI) APIs

<table data-card-size="large" data-view="cards"><thead><tr><th></th><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><mark style="color:blue;"><strong>Decentralized Identifiers</strong></mark> </td><td><em><mark style="color:yellow;">APIs to manage DIDs for your apps</mark></em></td><td></td><td><a href="/hypersign-ssi/api-doc/did.md">DID</a></td></tr><tr><td><mark style="color:blue;"><strong>Schema</strong></mark></td><td><em><mark style="color:yellow;">APIs to manage schemas for credentials for your apps</mark></em></td><td></td><td><a href="/hypersign-ssi/api-doc/schema.md">Schema</a></td></tr><tr><td><mark style="color:blue;"><strong>Verifiable Credentials</strong></mark></td><td><em><mark style="color:yellow;">APIs to manage verifiable credentials for your apps</mark></em></td><td></td><td><a href="/hypersign-ssi/api-doc/verifiable-presentation.md">Verifiable Presentation</a></td></tr><tr><td><mark style="color:blue;"><strong>Verifiable Presentation</strong></mark></td><td><em><mark style="color:yellow;">API to manage presentation template and verification</mark></em></td><td></td><td><a href="/hypersign-ssi/api-doc/verifiable-presentation.md">Verifiable Presentation</a></td></tr></tbody></table>