> For the complete documentation index, see [llms.txt](https://docs.carbon.inc/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.carbon.inc/tradfi/carbon-prime.md).

# Carbon Prime

Carbon Prime is a flat, ultra-low fee program for algorithmic traders and high-volume desks trading Carbon TradFi through the API. Approved users trade every Carbon TradFi market at a flat platform fee of 0.15 bps to open and 0.15 bps to close, in place of the standard fee and the fee rebate program.

### The Rate

|            | Standard | Carbon Prime |
| ---------- | -------- | ------------ |
| Open       | 0.5 bps  | 0.15 bps     |
| Close      | 0.5 bps  | 0.15 bps     |
| Round trip | 1.0 bps  | 0.30 bps     |
| Per $1M    | $100     | $30          |

The rate is flat. It does not change with volume, rank or a claim schedule, and it is the same on every trade. 

### What Stays The Same

Carbon Prime changes the platform fee and nothing else. The rest of a Carbon TradFi trade is unchanged:

* **Spread.** Each market still trades at the spread of its underlying real market, shown live in the trade ticket. See [TradFi Fees and Funding](/tradfi/tradfi-fees-and-funding.md).
* **Overnight funding.** The market's overnight funding rate still applies to positions held at the daily charge. See TradFi Fees and Funding.

### Why A Flat Rate Instead Of Rebates

The standard platform fee can be reduced through Fee Rebates, up to 60% back, scaling with your 30-day volume and rank. Carbon Prime replaces that with a single flat rate that is lower than the best rebated rate reachable, and it applies immediately on every trade with nothing to claim. Because the rate is already set at program level, Carbon Prime accounts do not earn fee rebates.

### Who It Is For

Carbon Prime is for desks and algorithmic traders running high-throughput strategies through the Carbon API: market makers, systematic and quant desks, and liquidity providers. It is not a retail tier and is available only through the API, not the standard app trading path.

Access is by application and requires:

* An API-enabled subaccount. See Enabling API Access.
* A minimum of $100M in 30-day trading volume on Carbon TradFi, or a credible plan to reach it.
* Approval by the Carbon team.

Activity is reviewed on a rolling 30-day basis.

### How To Apply

Open a ticket on [Discord](https://discord.gg/CarbonTerminal), or DM on [Telegram](https://t.me/StackingEUR).

### Availability

Carbon Prime covers all Carbon TradFi markets: stocks, forex, indices and commodities. Carbon's TradFi markets are not available to US persons. Please review the [Terms and Conditions ](/additional-information/terms-and-conditions.md)before trading.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.carbon.inc/tradfi/carbon-prime.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.