Most teams using Custom API Actions are connecting to systems they already run their business on. This article lists the most common ones, grouped by category, with a one-line description of what each connection enables and a link to the API documentation you will need to set it up.

Before you start, read Creating a Custom API Action for the setup process. This article is a reference for what to connect, not how to connect it.

E-Commerce

Shopify - Look up order status, shipping updates, product availability, and customer purchase history during conversations. Shopify API docs

WooCommerce - Retrieve order details, check inventory, and access customer account data from a WooCommerce store. WooCommerce REST API docs

BigCommerce - Query order status, product details, and customer records from a BigCommerce store. BigCommerce API docs

Billing and Payments

Stripe - Look up payment history, subscription status, invoice details, and charge information for a specific customer. Stripe API docs

PayPal - Retrieve transaction history and payment status for customer queries about purchases or refunds. PayPal API docs

Chargebee - Access subscription details, billing history, and plan information for SaaS billing queries. Chargebee API docs

Recurly - Query subscription status, invoices, and account details for recurring billing support. Recurly API docs

CRM and Sales

Salesforce - Look up account details, contact records, deal status, and case history directly from your CRM. Salesforce API docs

HubSpot - Retrieve contact records, deal status, company information, and ticket history from HubSpot. HubSpot API docs

Pipedrive - Access deal status, contact details, and pipeline information for sales-related queries. Pipedrive API docs

Zoho CRM - Query leads, contacts, deals, and account records from Zoho. Zoho CRM API docs

Support and Helpdesk

Zendesk - Look up ticket status, retrieve past support history, and check the status of open issues for a customer. Zendesk API docs

Intercom - Access conversation history, contact details, and open issue status from Intercom. Intercom API docs

Freshdesk - Retrieve ticket status, contact history, and support records from Freshdesk. Freshdesk API docs

Jira - Look up issue status, project details, and ticket progress for technical support queries. Jira REST API docs

Logistics and Operations

ShipBob - Check fulfillment status, shipment tracking, and inventory levels for order support queries. ShipBob API docs

ShipStation - Retrieve shipment tracking information and order fulfillment status. ShipStation API docs

EasyPost - Track packages and retrieve shipping label and carrier information during conversations. EasyPost API docs

Scheduling and Calendar

Calendly - Check availability, create booking links, and retrieve scheduled event details. Calendly API docs

Acuity Scheduling - Access appointment availability and booking details for scheduling-related queries. Acuity API docs

Communication

Twilio - Send SMS messages or check message delivery status as part of a conversation flow. Twilio API docs

SendGrid - Trigger transactional emails or check email delivery status during a conversation. SendGrid API docs

Mailchimp - Look up subscriber status, list membership, and campaign history for marketing-related queries. Mailchimp API docs

Internal Tools and Databases

Airtable - Query records from any Airtable base - useful for teams managing custom data in Airtable that customers need to access. Airtable API docs

Notion - Retrieve content from a Notion database - useful for internal knowledge that lives in Notion and needs to be surfaced in conversations. Notion API docs

Google Sheets - Read data from a Google Sheet - useful for lightweight data sources like product lists, pricing tables, or FAQ content managed in a spreadsheet. Google Sheets API docs

Identity and Access

Auth0 - Look up user account status, roles, and authentication details for access-related support queries. Auth0 Management API docs

Okta - Retrieve user profile information and account status from Okta for identity-related queries. Okta API docs

Not on This List?

If the system you need is not listed here, it can almost certainly still be connected. Most software built in the last ten years has a REST API. Check your platform's developer documentation - look for terms like "API reference", "REST API", or "developer docs" - and use those endpoints to set up a Custom API Action. See Creating a Custom API Action for how to do it.

If your system supports MCP, that gives your agent an even deeper connection. See Connecting a Verified MCP Server and Adding a Custom MCP Server by URL.