> For the complete documentation index, see [llms.txt](https://dev.guardian.hedera.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://dev.guardian.hedera.com/guardian/standard-registry/trustchain/trustchain-apis.md).

# TrustChain APIs

Endpoints for building and retrieving the trust chain for a Guardian verifiable presentation (VP) document.

**Authentication:** Bearer token required (`Authorization: Bearer <token>`)

***

| Method | Endpoint                      | Description                                                       | Auth Required |
| ------ | ----------------------------- | ----------------------------------------------------------------- | ------------- |
| `GET`  | `/api/v1/trust-chains/{hash}` | Builds and returns the full trust chain for the specified VP hash | Yes           |
| `GET`  | `/api/v1/trust-chains`        | Returns a paginated list of trust chains                          | Yes           |

## Endpoints

* [Building and Returning Trustchain](/guardian/standard-registry/trustchain/trustchain-apis/building-and-returning.md)
* [Requesting Trustchain](/guardian/standard-registry/trustchain/trustchain-apis/requesting.md)