---
description: Spectrum API fields and settings available by Cloudflare plan.
title: Settings by plan
image: https://developers.cloudflare.com/og-docs.png
---

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

# Settings by plan

Last updated Aug 25, 2026|Copy as Markdown| [View as Markdown](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/spectrum/reference/settings-by-plan/index.md)| [Agent setup](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/agent-setup/)

Certain fields in Spectrum request and response bodies require an Enterprise plan. To upgrade your plan, contact your account team.

Spectrum properties requiring an Enterprise plan:

| Name | Type | Description | Example |
| --- | --- | --- | --- |
| `origin_dns` | object | Method and parameters used to discover the origin server address via DNS. Valid record types are `A`, `AAAA`, `SRV` and empty (both `A` and `AAA`).<br>A request must contain either an `origin_dns` parameter or an `origin_direct` parameter. When both are specified the service returns an `HTTP 400 Bad Request`. | `origin_dns: {type: A, name: mqtt.example.com, ttl: 1200}` |
| `origin_port` | integer | The destination port at the origin. | `22` |
| `proxy_protocol` | string | Enables Proxy Protocol to the origin. Spectrum supports `v1`, `v2`, and `simple` proxy protocols. Refer to [Proxy Protocol](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/spectrum/how-to/enable-proxy-protocol/) for more details. | `off` |
| `ip_firewall` | boolean | Enables IP Access rules for this application. | `true` |
| `tls` | string | Type of TLS termination for the application. Options are `off` (default, also known as Passthrough), `flexible`, `full`, and `strict`. Refer to [Configuration Options](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/spectrum/reference/configuration-options/) for descriptions of each. | `full` |
| `argo_smart_routing` | boolean | Enables Argo Smart Routing for the application. Note that it is only available for TCP applications with traffic\_type set to `direct`. | `true` |

Review the [Spectrum API documentation](https://d1-custom-bindings-docs.previews.developers.cloudflare.com/api/resources/spectrum/subresources/apps/methods/list/) for example API requests.

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