Costello Docs

Everything you need to set up, train, and run your AI receptionist.

Getting Started

Set up Costello and ship your first AI receptionist.

Train your AI on your business — services, FAQs, policies, hours.

Connect Instagram, Messenger, WhatsApp and your website chat.

Testing & Optimization

Use the Playground to test and improve your receptionist.

Activity & Analytics

Read conversations, capture leads, measure performance.

Plans & Billing

Pricing, upgrades, message caps, and the referral programme.

Affiliate Programme

Earn 30% recurring commission for 12 months on every business you refer.

Account & Workspace

Settings, team management, 2FA, and GDPR.

Troubleshooting

Diagnose common issues and get unstuck quickly.