> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognigy.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Service Overview

Service Nodes are used to:

* Serve as connectors to APIs and databases. They assist in tasks such as accessing your user database to enhance the customization of your Flow.
* Help to operate Flows that include handover logic.

<CardGroup cols={3}>
  <Card title="Add Transcript Step" href="/ai/agents/develop/node-reference/service/add-transcript-step">
    The Add Transcript Step Node adds a step for one of the conversation actors to simulate an input or output.
  </Card>

  <Card title="Check Agent Availability" href="/ai/agents/develop/node-reference/service/check-agent-availability">
    The Check Agent Availability Node checks and reports the availability of agents with specific skills, or suggest an alternative response.
  </Card>

  <Card title="Close Handover" href="/ai/agents/develop/node-reference/service/close-handover">
    The Close Handover Node closes the handover conversation on the handover provider side and returns the user to the AI Agent.
  </Card>

  <Card title="Get Transcript" href="/ai/agents/develop/node-reference/service/get-transcript">
    The Get Transcript Node lets you receive a real-time conversation transcript and store the result in the [Input](/ai/agents/develop/ai-agent-memory/input) or [Context](/ai/agents/develop/ai-agent-memory/context) object.
  </Card>

  <Card title="Handover to Human Agent" href="/ai/agents/develop/node-reference/service/handover-to-agent">
    With the Handover to Human Agent Node, AI Agents can hand transfer conversations to human agents in contact centers.
  </Card>

  <Card title="HTTP Request" href="/ai/agents/develop/node-reference/service/http-request">
    The HTTP Request Node executes HTTP requests to other interfaces (APIs).
  </Card>

  <Card title="LLM Prompt" href="/ai/agents/develop/node-reference/service/llm-prompt">
    This Node combines the capabilities of the [AI Agent Node](/ai/agents/develop/node-reference/ai/ai-agent) and the [legacy LLM Prompt Node](/ai/agents/develop/node-reference/service/llm-prompt-legacy) by adding support for tools, image recognition, and conversation transcripts.
  </Card>

  <Card title="LLM Prompt (legacy)" href="/ai/agents/develop/node-reference/service/llm-prompt-legacy">
    With the LLM Prompt Node, you can use prompts with different LLMs to generate structured content for AI Agent responses.
  </Card>

  <Card title="MongoDB Nodes" href="/ai/agents/develop/node-reference/service/mongo-db">
    A built-in MongoDB connector that you can use directly in the Flow. Includes different operations for MongoDB.
  </Card>

  <Card title="Microsoft SQL Nodes" href="/ai/agents/develop/node-reference/service/ms-sql">
    A built-in Microsoft SQL connector that you can use directly in the Flow. Includes different operations for Microsoft SQL.
  </Card>

  <Card title="Set Handover Inactivity" href="/ai/agents/develop/node-reference/service/set-handover-inactivity">
    The Set Handover Inactivity Node detects and handles user inactivity, freeing up capacity for the human agent team.
  </Card>

  <Card title="Trigger Function" href="/ai/agents/develop/node-reference/service/trigger-function">
    Use the Trigger Function Node to execute a [Function](/ai/for-developers/functions).
  </Card>
</CardGroup>