> For a complete page index, fetch https://developer.close.com/llms.txt

# Opportunity Custom Fields


## API Docs

- Opportunity Custom Fields [List Opportunity Custom Fields](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/list.md)
- Opportunity Custom Fields [Create a new Opportunity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/create.md)
- Opportunity Custom Fields [Fetch Opportunity Custom Field's details](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/get.md)
- Opportunity Custom Fields [Update an Opportunity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/update.md)
- Opportunity Custom Fields [Delete an Opportunity Custom Field](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/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-opportunity/openapi.json)
- [OpenAPI YAML](https://developer.close.com/api/resources/custom-fields/custom-fields-opportunity/openapi.yaml)