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# Tools

## Overview

Tools allow ElevenLabs agents to perform actions beyond generating text responses.
They enable agents to interact with external systems, execute custom logic, or access specific functionalities during a conversation.
This allows for richer, more capable interactions tailored to specific use cases.

ElevenLabs Agents supports the following kinds of tools:

#### [Client Tools](/docs/eleven-agents/customization/tools/client-tools)

Tools executed directly on the client-side application (e.g., web browser, mobile app).

#### [Webhook tools](/docs/eleven-agents/customization/tools/webhook-tools)

Custom tools that call external APIs through webhooks.

#### [Code Tools](/docs/eleven-agents/customization/tools/code-tools)

Custom JavaScript executed in a sandboxed environment on ElevenLabs' infrastructure.

#### [MCP Tools](/docs/eleven-agents/customization/tools/mcp)

Model Context Protocol servers that provide tools and resources to agents.

#### [System Tools](/docs/eleven-agents/customization/tools/system-tools)

Built-in tools provided by the platform for common actions.

## Tool Features

#### [Tool Call Sounds](/docs/eleven-agents/customization/tools/tool-configuration/tool-call-sounds)

Add ambient audio during tool execution to enhance user experience.

#### [Tool Interruptions](/docs/eleven-agents/customization/tools/tool-configuration/tool-interruptions)

Control whether users can interrupt the agent while a tool runs.

> ElevenLabs provides APIs and SDKs for text to speech, voice cloning, speech to text, sound effects, voice isolator, voice changer, and conversational AI agents. Build voice-enabled applications with lifelike audio generation.

## Docs

- [Client tools](https://elevenlabs.io/docs/eleven-agents/customization/tools/client-tools.md): Empower your assistant to trigger client-side operations.
- [Webhook tools](https://elevenlabs.io/docs/eleven-agents/customization/tools/webhook-tools.md): Connect your assistant to external data & systems.
- [Code tools](https://elevenlabs.io/docs/eleven-agents/customization/tools/code-tools.md): Run custom JavaScript logic directly on ElevenLabs' infrastructure.
- [Model Context Protocol](https://elevenlabs.io/docs/eleven-agents/customization/tools/mcp.md): Connect your ElevenLabs conversational agents to external tools and data sources using the Model Context Protocol.
- [MCP integration security](https://elevenlabs.io/docs/eleven-agents/customization/tools/mcp/security.md): Tips for securely integrating third-party Model Context Protocol servers with your ElevenLabs conversational agents.
- [System tools](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools.md): Update the internal state of conversations without external requests.
- [End call](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/end-call.md): Let your agent automatically hang up on the user.
- [Language detection](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/language-detection.md): Let your agent automatically switch to the language
- [Agent transfer](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/agent-transfer.md): Seamlessly transfer the user between ElevenLabs agents based on defined conditions.
- [Transfer to number](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/transfer-to-number.md): Transfer calls to external phone numbers or SIP URIs based on defined conditions.
- [Skip turn](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/skip-turn.md): Allow your agent to pause and wait for the user to speak next.
- [Play keypad touch tone](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/play-keypad-touch-tone.md): Enable agents to play DTMF tones to interact with automated phone systems and navigate menus.
- [Voicemail detection](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/voicemail-detection.md): Enable agents to automatically detect voicemail systems and optionally leave messages.
- [Update state](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/update-state.md): Let your agent update dynamic variables mid-conversation using expressions.
- [Flag issue for review](https://elevenlabs.io/docs/eleven-agents/customization/tools/system-tools/flag-issue-for-review.md): Let a live agent raise a triage ticket for a problem it can't resolve, without interrupting the caller.
- [Tool Call Sounds](https://elevenlabs.io/docs/eleven-agents/customization/tools/tool-configuration/tool-call-sounds.md): Add ambient audio during tool execution to enhance user experience.
- [Tool interruptions](https://elevenlabs.io/docs/eleven-agents/customization/tools/tool-configuration/tool-interruptions.md): Control whether users can interrupt the agent while a tool runs.