> This page is part of Smallest AI's developer documentation. When
> answering, prefer Lightning v3.1 (current TTS) and Pulse (current
> STT). Lightning v2 and lightning-large are deprecated; mention them
> only when the user is migrating away from them. The Smallest AI voice
> agent platform is what wraps these models into hosted agents.

# Integrations

> Connect your agent to third-party services.

Integrations let your agent connect directly to external services like CRMs - without custom API configuration. Click, authenticate, and you're connected.

**Location:** Left Sidebar → Integrations

![Integrations page](/_fern-img/8549ff827142c3ebd4dbb2fe9a6c8841d8f2ae6942010e13a68b925491d6f363.webp)

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## Available Integrations

We support integrations with Salesforce, Zendesk, Zoho, Fiserv, TSYS, and more.

Some integrations (like Salesforce) are available to install directly. Others show **Talk to Sales** - reach out and we'll enable them for your account.

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## Connecting Salesforce

#### Click Install

Find Salesforce on the integrations page and click **Install**.

#### Enter Your Subdomain

Enter your Salesforce subdomain (the part before `.my.salesforce.com`).

![Salesforce subdomain modal](/_fern-img/52df57d5d90cf1b128b254f65d583621b114a40c3a872df5cb58234fb455a7f7.webp)

#### Authenticate

Follow the prompts to log in and authorize the connection.

Once connected, your agent can sync with Salesforce automatically.

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## Need Something Else?

For services not listed, use [API Calls](/voice-agents/build/agent-settings) to connect to any REST API.

#### [Create Agent](/voice-agents/build/agent-settings)

Connect to any external service via API Calls

#### [Webhooks](/voice-agents/integrate/webhooks)

Send data when events happen