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

# Agent Clients

Agent Clients.  Clients that Agents use to utilize data and functionality.

The configuration of the Agent determines what clients are available.

KGraphService is typically available for queries.

The [Vital Agent Resource REST API](https://vital-ai.gitbook.io/vital-agent-resource-rest/) is used as a gateway to external APIs.

LLMs may be accessed directly or via a gateway such as Kong.