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# Activity Custom Fields


## API Docs

- Activity Custom Fields [List Activity Custom Fields](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/list.md)
- Activity Custom Fields [Create a new Activity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/create.md)
- Activity Custom Fields [Fetch Activity Custom Field's details](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/get.md)
- Activity Custom Fields [Update an Activity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/update.md)
- Activity Custom Fields [Delete an Activity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/delete.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/openapi.json)
- [OpenAPI YAML](https://developer.close.com/api/resources/custom-fields/custom-fields-activity/openapi.yaml)