Set up your first AI voice agent in 10 minutes, or integrate the Calendar + Leads APIs with copy-paste examples.
Try “webhooks”, “agent”, or “Twilio” — filters guides + topics below.
$ curl https://app.fusioncalling.com
/api/calendar/external/v1/events \
-H "Authorization: Bearer fc_live_…"
200 OK
{ "events": ["booked-call-tue-2pm" … ] }Copy-paste examples in every endpoint.
Your first request →01
New to voice AI? Start with Agent Setup. Integrating? Open the API Reference.
02
Each guide lists time + level up front, with steps, best practices, and troubleshooting.
03
Connect webhooks, sync your CRM, then scale with SMS campaigns and retries.
Questions
Start with Agent Configuration (10 min, Beginner) to create your first voice agent, then Lead Management to upload leads. Developers integrating programmatically should jump to the API Reference Quick Start.
The docs cover everything you need to integrate and run AI voice agents: the External Calendar and Leads APIs, authentication, webhooks, agent configuration, lead management, SMS messaging, and the admin section.
Every API request is authenticated with a bearer token as documented in the API Reference. Webhooks push call outcomes, lead events, and transcriptions to your endpoints so you can sync them into any CRM.
Yes. Agencies can resell AI voice agents under their own brand using the white-label program, bringing their own Vapi, Retell, or ElevenLabs keys and managing unlimited client sub-accounts from one dashboard.
Our team can help you integrate Fusion Calling into your workflow and optimize your AI voice automation strategy.