> ## Documentation Index
> Fetch the complete documentation index at: https://docs.versori.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Connectors

Connectors describe external systems (e.g., Shopify, NetSuite) and how to talk to them: base URLs, operations, and authentication.

Key concepts:

* **Authentication**: API key, OAuth 2.0, Basic, custom schemes. Choose the minimal scope needed.
* **Operations**: Define common requests (list, get, create, update). Document pagination, rate limits, and error shapes.
* **Versioning**: Publish new versions when upstream APIs change; keep Projects pinned to a compatible version.

When to create a new Connector:

* A new system or a materially different API variant.
* A versioned API change that breaks compatibility.

Related: [Connections](../concepts/connections)