> For the complete documentation index, see [llms.txt](https://docs.bloxroute.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.bloxroute.com/eth/block-builders-and-validators/mev-relay-for-validators.md). # MEV Relay (For Validators) Validators and node operators should configure their middleware (mev-boost, Commit-Boost, or Vouch) to connect to bloXroute’s MEV relays **Setup Middleware**\ To participate in MEV, validators can choose from three supported middleware options: * [**mev-boost**](https://github.com/flashbots/mev-boost) – The industry-standard middleware written in Golang that lets validators outsource block construction to connected relays. It’s widely adopted, easy to deploy, and supported across all major relay providers. Best suited for validators who want simplicity and maximum compatibility. * [**Commit-Boost**](https://github.com/Commit-Boost/commit-boost-client) – A newer alternative middleware implementation of mev-boost, developed by the community in Rust. It aims to improve performance, stability, and flexibility while remaining fully compatible with the existing relay ecosystem. * [**Vouch**](https://github.com/attestantio/vouch) – A validator client middleware from Attestant that emphasizes configurability and security. It enables policy enforcement on bids, builders, and relays, giving validators more control over proposal logic. Ideal for those who want to enforce stricter rules or custom policies. ### Relay Details bloXroute operates the following MEV relay: Regulated—which is available for both validators and builders to connect to. The relay currently enforce the filtering policy: it propagates all available transactions and bundles except those interacting with OFAC-sanctioned addresses. ### Relay Endpoint Validators running any of the supported middleware mentioned above can connect to bloXroute’s MEV relay on Ethereum Mainnet to receive full blocks proposed by bloXroute. bloXroute offers the following type of MEV relay: * **Regulated Relay** – enforces the OFAC filtering but was originally intended for stricter regulatory environments **Mainnet Relay Endpoint** * **Regulated relay:** `https://0xb0b07cd0abef743db4260b0ed50619cf6ad4d82064cb4fbec9d3ec530f7c5e6793d9f286c4e082c0244ffb9f2658fe88@bloxroute.regulated.blxrbdn.com` **Example Usage (Mainnet Relay Endpoint):** ```bash ./mev-boost \ -mainnet \ -relays \ https://0xb0b07cd0abef743db4260b0ed50619cf6ad4d82064cb4fbec9d3ec530f7c5e6793d9f286c4e082c0244ffb9f2658fe88@bloxroute.regulated.blxrbdn.com ``` Validators can append `?id=` parameter to the end of relay URL. You may also append parameters such as `?id=your-validator-name` and `&auth=your-auth-header` .\ \ **Example Usage (Mainnet Relay Endpoint w/ Validator ID):** {% code overflow="wrap" %} ```bash ./mev-boost -mainnet -relays https://0xb0b07cd0abef743db4260b0ed50619cf6ad4d82064cb4fbec9d3ec530f7c5e6793d9f286c4e082c0244ffb9f2658fe88@bloxroute.regulated.blxrbdn.com?id=validator-name ``` {% endcode %} *\*\* It is recommended that validators connect to multiple MEV relays to maximize block proposal opportunities and resilience. This includes connecting to the bloXroute relay, as well as other major relays such as Flashbots, Ultrasound, and others.* **Skip Optimism** Validators can also append the `?skip_optimism=true` parameter to the end of a bloXroute relay URL to enforce full simulation of all blocks before receiving a header. This ensures that only fully simulated blocks are considered during block proposal. By default, bloXroute does not simulate blocks from trusted builders who have an established relationship with us—this allows for faster header delivery. However, setting `skip_optimism=true` overrides this behavior and ensures every block is simulated, regardless of the builder’s trust level. **Example Usage (Mainnet Relay Endpoint w/ Validator ID and Skip Optimism enabled):** {% code overflow="wrap" %} ```bash ./mev-boost -mainnet -relays https://0xb0b07cd0abef743db4260b0ed50619cf6ad4d82064cb4fbec9d3ec530f7c5e6793d9f286c4e082c0244ffb9f2658fe88@bloxroute.regulated.blxrbdn.com?id=validator-name&skip_optimism=true ``` {% endcode %} #### **Testnet Validators** Validators using mev-boost can now connect to bloXroute’s MEV relays on Hoodi testnet to receive full blocks proposed by bloXroute. **Hoodi Relay URL** * `https://0x821f2a65afb70e7f2e820a925a9b4c80a159620582c1766b1b09729fec178b11ea22abb3a51f07b288be815a1a2ff516@bloxroute.hoodi.blxrbdn.com` **Example Usage (Testnet Relay Endpoint with Validator ID)** {% code overflow="wrap" %} ```bash # Example Hoodi args ./mev-boost -genesis-fork-version 0x10000910 -relays https://0x821f2a65afb70e7f2e820a925a9b4c80a159620582c1766b1b09729fec178b11ea22abb3a51f07b288be815a1a2ff516@bloxroute.hoodi.blxrbdn.com?id= ``` {% endcode %} --- # Agent Instructions This documentation is published with GitBook. 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