# DEX

Speed, security, and cost are the key elements of the swap transaction experience. For DEX, although the transactions are submitted by RPC, once any key element is inadequate, users may not care about the underlying reasons and are likely to blame the DEX.

The RPC serves as the starting point and a critical node in the process from transaction submission to transaction inclusion. Building high-performance RPC nodes or purchasing services from RPC providers (such as Alchemy and Infura) can enhance transaction speed to some extent but often overlook security and cost. DEXs that are responsible for the user transaction experience can meet user needs in terms of speed, security, and cost simultaneously. For more details, please refer to [Analysis of Swap Transaction Elements](https://www.blockrazor.io/#/blogs/20250331swap). DEX can guide users through tools to add RPC to their wallets with one click.



## Why Choose Scutum RPC?

<figure><img src="https://2581477772-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjbyfG8gOgcdsK3wVxNdQ%2Fuploads%2F9p6TAdGidB2NQ5V5h535%2Fimage.png?alt=media&#x26;token=54aad4ee-f649-4361-963b-b90cc43ca0f3" alt="" width="563"><figcaption></figcaption></figure>

Scutum RPC provides a privacy channel for transactions, blocking potential MEV attacks at the source.

Based on a globally distributed network, Scutum can receive transactions from clients with extremely low latency and then forward these transactions to geographically nearby Builders, which achieves end-to-end low-latency forwarding at the network level and improves the transaction inclusion rate.

<figure><img src="https://2581477772-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FjbyfG8gOgcdsK3wVxNdQ%2Fuploads%2F6kz7maKC3gL6KOVZkRVM%2Fimage.png?alt=media&#x26;token=668be9b9-68e4-4150-9241-1e9269bcfb76" alt=""><figcaption><p>The benchmark client sends transactions to Scutum RPC, A RPC, and B RPC, recording the difference between the latest block number at the time of sending the transaction and the block number in which the transaction is included. A smaller difference indicates a faster on-chain speed.</p></figcaption></figure>

The chart data shows that transactions submitted to Scutum have a probability of being included in the next block as high as 95%, and 100% probability being included in the next 2 blocks, which significantly surpasses that of competitors.

Scutum RPC nodes are deployed globally in a distributed manner, adhering to the principles of multi-active and multi-cloud, ensuring long-term fault-free operation of the system.

Scutum RPC offers free RPC services to DEX, with no rate limits on the API, reducing the costs associated with building or purchasing RPC nodes. Additionally, Scutum RPC supports transaction revert protection, free transaction cancellation and real time refund, further lowering traders' transaction costs to a large extent.



## How to Use Scutum RPC

**Add RPC at One Click**

DEXs only need to configure brand elements such as logos, slogans, and UI styles in the console, and the system will automatically generate a dedicated promotional page, of which the feature is adding RPC to wallets at one click(refer to [rpc.blockrazor.io](https://rpc.blockrazor.io/)), eliminating the need for custom development. (This feature is currently under development and will be launched soon, so stay tuned.)

**Custom RPC URL**

When users add RPC to wallets, the wallet will display the RPC URL being added. To ensure brand consistency, Scutum provides DEXs with the ability to customize RPC domain names, allowing them to easily modify the RPC domain to their brand name in the console.



**Steps**

1. [Register](https://www.blockrazor.io/#/register) for BlockRazor
2. [Login](https://www.blockrazor.io/#/login) to the portal of BlockRazor
3. Go to the RPC module to view your dedicated RPC URL (currently supporting Ethereum and BSC). Update the domain at one click.
4. Go to the promotion tools module, configure the logo, slogan, and UI style, and generate a webpage to let your users add RPC at one click.
5. Promote MEV-protected RPC through this webpage on the official website, documentation, social media, and other channels, guiding users to add RPC with one click.



## FAQ

**Currently, on which chains does Scutum provide services?**

* Currently, Scutum supports Ethereum and BSC.

**Does Scutum RPC impose rate limits on JSON RPC methods, including sendRawtransaction?**

* Scutum RPC has no rate limits and does not require token validation, allowing for direct integration.

