# Connections: AI assistants and API

> Connect an AI assistant, create API keys, use the REST API and receive webhooks.

Source: https://support.billingmart.com/connections
Updated: 2026-10-26

- [Connect BillingMart to Claude](https://support.billingmart.com/connections/connect-billingmart-to-claude.md): Add BillingMart from Claude's connector directory, sign in, and keep every send and charge behind your approval.
- [Connect Claude, ChatGPT or Gemini](https://support.billingmart.com/connections/connect-an-assistant.md): Add BillingMart to an AI assistant, sign in, choose what it may see and do, and know what to check on the consent screen before you allow it.
- [Modes and rules for connected assistants](https://support.billingmart.com/connections/modes-and-rules-for-connections.md): What Ask, Plan and Auto mean for a connected assistant, who can change them, what the owner's capped rules can cover, and what always needs a person.
- [API keys and the REST API](https://support.billingmart.com/connections/api-keys.md): Create an API key for your own software, choose what it may do, understand test and live keys, and handle retries and rate limits when you call the REST API.
- [Webhooks](https://support.billingmart.com/connections/webhooks.md): Register an endpoint, see which events BillingMart sends today, verify the signature, and understand retries, rotation, and what switches an endpoint off.