> For the complete documentation index, see [llms.txt](https://docs.inrupt.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.inrupt.com/ess/3.1/services.md).

# ESS Services

The Enterprise Solid Server (ESS) includes the following core services:

| Service                                                                                | Description                                                                                                                                                                                                                                                                                                                                                                 |
| -------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| [Access Grant Service](/ess/3.1/services/service-access-grant.md)                      | <p>Overview of the Access Grant service and its endpoints:<br>• Access Grant Issuer Endpoint (<code>/issue</code>)<br>• Access Grant Query Endpoint (<code>/query</code>)<br>• Access Grant Status Endpoint (<code>/status</code>)<br>• Access Grant Verifier Endpoint (<code>/verify</code>)<br></p>                                                                       |
| [Auditing Service](/ess/3.1/services/service-auditing.md)                              | Overview of the Auditing service.                                                                                                                                                                                                                                                                                                                                           |
| [Authorization Service](/ess/3.1/services/service-authorization.md)                    | Overview of the Authorization service.                                                                                                                                                                                                                                                                                                                                      |
| [MCP Service](/ess/3.1/services/service-mcp.md)                                        | MCP Resource Service for AI agent integration using the Model Context Protocol.                                                                                                                                                                                                                                                                                             |
| [Notification Services](/ess/3.1/services/service-notification.md)                     | Overview of the Notification services.                                                                                                                                                                                                                                                                                                                                      |
| [Platform Management Services](/ess/3.1/services/service-platform-management.md)       | <p>Overview of the Platform Management services:<br>• <a href="/pages/1M0LSYnLWBELZooVuO7X">Platform Management API</a> (user provisioning, WebID and storage management)<br>• <a href="/pages/MaaO8ggdTjQbtiqIPV2B">Token Exchange</a><br>• <a href="/pages/Z2fdRtu3uTNLFUIqTLgg">Purger Service</a><br>• <a href="/pages/WRYN6KGzHbMCLH8rnQHB">Purger Application</a></p> |
| [Pod Storage Service](/ess/3.1/services/service-pod-management/service-pod-storage.md) | Manages resource storage and access within Pods.                                                                                                                                                                                                                                                                                                                            |

## Advanced Configuration

The following services are needed only when ESS must interoperate with other Solid servers or issue Solid-OIDC-compliant tokens. Standard ESS deployments do not need these services.

| Service                                                                               | Description                                                                                                                |
| ------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------- |
| [Solid OIDC Broker Service](/ess/3.1/services/advanced-configuration/service-oidc.md) | Identity broker for deployments that require Solid-OIDC protocol compliance for interoperability with other Solid servers. |
| [Start Service](/ess/3.1/services/advanced-configuration/service-start.md)            | User-facing application for sign-up, login, and provisioning.                                                              |
| [WebID Service](/ess/3.1/services/advanced-configuration/service-webid.md)            | Hosts and manages WebID Profile Documents for Solid-OIDC interoperability.                                                 |

{% hint style="info" %}
**Services Removed in ESS 3.0**

The following services have been removed in ESS 3.0:

* **UMA Service**: Access Grants now work directly without UMA negotiation.
* **Query/QPF (Fragments) Service**: Being replaced with new search capabilities.
* **Notification Gateway Service**: Removed.
* **WebSocket Notification Service**: Removed. Use the [Notification Delivery Service](/ess/3.1/services/service-notification/notification-delivery-service.md).
* **Wallet Service**: Removed. See the [ESS 2.7 Wallet Service documentation](https://github.com/inrupt/docs-gitbook/tree/main/ess/2.7/services/service-wallet/README.md).
  {% endhint %}