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Custom connector building is only available on certain plans. Each custom connector takes up one of your plan's slots. See plans and pricing.
StackOne connectors are defined in YAML. The same schema powers every pre-built connector, and you can use it to build your own. If you’re new to connectors, start with Build your first connector and Connector structure.

File Structure

How a connector’s files are organized, from the main file to resource partials.

YAML Schema

Every top-level connector property: info, baseUrl, authentication, actions, events, and more.

Step Functions

The step functions you compose inside action and event setup steps.

Expression Language

JSONPath, JEXL, and string interpolation used throughout the schema.