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# Ramps


## API Docs

- Ramps [Retrieve a ramp](https://zuora.ferndocs.com/developers/api-reference/zuora-api/orders-and-subscriptions/ramps/get-ramp-by-ramp-number.md)
- Ramps [List all ramp metrics of a ramp](https://zuora.ferndocs.com/developers/api-reference/zuora-api/orders-and-subscriptions/ramps/get-ramp-metrics-by-ramp-number.md)
- Ramps [Retrieve a ramp by subscription key](https://zuora.ferndocs.com/developers/api-reference/zuora-api/orders-and-subscriptions/ramps/get-ramps-by-subscription-key.md)
- Ramps [List ramp metrics by subscription key](https://zuora.ferndocs.com/developers/api-reference/zuora-api/orders-and-subscriptions/ramps/get-ramp-metrics-by-subscription-key.md)
- Ramps [List ramp metrics by order number](https://zuora.ferndocs.com/developers/api-reference/zuora-api/orders-and-subscriptions/ramps/get-ramp-metrics-by-order-number.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://zuora.ferndocs.com/openapi.json)
- [OpenAPI YAML](https://zuora.ferndocs.com/openapi.yaml)