Searchers find billions in MEV but keep almost nothing. Ordexis builds the blocks itself — a vertically integrated searcher-builder on Ethereum, extending across OP Stack L2s, retaining 100% of captured value instead of the 10% a typical searcher keeps.
Not every chain works the same way. On Ethereum's public mempool Ordexis searches and builds. Most L2s run private sequencers — there the edge is building blocks, not racing a mempool. One engine, adapted to how each chain actually orders transactions.
Block building has been a closed game — three builders, a relay trust model, and reputation moats that lock newcomers out. Two shifts are prying it open at the same time, and neither one lasts.
EIP-7732 lands in the Glamsterdam hard fork and removes the relay trust model that keeps new builders out. For the months after, it is the most level playing field builders will ever see.
External block production on OP Stack is still maturing, and the operator and RaaS relationships that will decide who builds L2 blocks are being formed now — not yet locked in.
Once incumbents adapt to ePBS and L2 building fills in, the opening is gone. The advantage goes to whoever is already built and running when the rules change.
The MEV supply chain is structurally broken. Thousands of searchers find billions of dollars in profitable opportunities — then have to give 85 to 95 percent of that value to three builders just to get included in a block. The people doing the work keep almost nothing.
Proprietary intelligence systems that monitor chain state and mempool activity across multiple geographic vantage points in real time.
Receipt: OCR2 visibility →Machine learning agents trained on live network data that optimize execution parameters continuously as market conditions evolve.
Receipt: liquidation TAM →Full-stack block building on Ethereum L1, extending to OP Stack L2s through operator relationships as external block production matures. From transaction ordering to network submission.
Receipt: flashbox reproduction →Ordexis captures value that already exists on-chain and shares it back with the protocols and users who create it. Here is what working with Ordexis provides.
Shield your users from toxic extraction. Ordexis backruns arbitrage that already exists — never sandwiching or front-running — so your users keep their slippage and your protocol keeps its reputation.
For protocols & L2sYour transactions generate backrun value that leaks to external builders today. Ordexis returns a share of that captured value to the protocol that created it, instead of extracting it and keeping it.
For DEXs & DeFiNon-toxic block production for OP Stack chains. As external block building on Base and Optimism opens up, Ordexis brings an integrated searcher-builder to the operators and RaaS providers shaping who builds those blocks.
For rollups & sequencersOne system from detection to block assembly. No external builders, no bribe tax, no value leakage. A fleet of specialized strategies feeds directly into Ordexis's own block builder running on Reth and rbuilder.
The full stackBlock building is infrastructure. The person building it should know infrastructure at the hardware level.
15 years of datacenter infrastructure engineering — Dell, eBay, Microsoft. Designed and operated production systems handling millions of transactions across compute, storage, and networking layers at enterprise scale. Built the entire Ordexis platform as a solo technical build: smart contracts, reinforcement learning agent, mempool intelligence system, flash loan execution engine, and a multi-region bare-metal architecture.
MEV can protect users or prey on them. Ordexis captures value that already exists on-chain without degrading the experience of the people and protocols it builds for. That line is not a marketing position — it is written into which strategies run.
Detection, execution, and block assembly in a single vertically integrated system. No middlemen. No bribes. No value leakage.
Records every pending transaction with microsecond precision across multiple geographic vantage points. Builds a proprietary intelligence dataset that compounds in value with every day of collection and becomes harder to replicate over time.
Deep reinforcement learning agent trained on live mempool data via priority experience replay. Adapts gas, strategy, and timing without manual intervention.
Reth full node with rbuilder running in-process. Assembles blocks containing Ordexis's own bundles at zero bribe cost. Submits directly to proposers via ePBS. On OP Stack, op-rbuilder-based building integrates with the sequencer operator's stack — pursued through operator relationships.
Thousands of searchers find billions in MEV. But they have to give 85 to 95 percent of that value to three builders who control 75% of blocks — just to get included. The relay trust model locks new builders out. ePBS changes that.
Searcher feeds directly into builder. Zero network latency, zero bribe overhead. A $50 opportunity stays $50 — not $5 after an 85% builder tax. Same code, 10x margin.
Mempool activity recorded from multiple geographic vantage points. Each day of collection compounds a dataset that becomes harder to replicate from scratch over time.
EIP-7732 eliminates relay gatekeeping. The 3-6 month transition after Glamsterdam creates the most level playing field new builders will ever see. Ordexis is building natively for the new rules.
On OP Stack, block building is the sequencer operator's role, not a permissionless race. Ordexis's edge is arriving early to the operator and RaaS relationships that decide who builds L2 blocks — with the searcher stack already running on those chains.
Revenue at every phase. Each stage funds the next while building toward full vertical integration across L1 and L2.
Searcher on Ethereum mainnet. Validate execution-engine win rates. Build mempool intelligence. Generate returns from flash loan arbitrage across a fleet of specialized strategies.
Reth full node on dedicated hardware. Eliminate RPC dependencies. Zero-latency state access. Direct mempool feed via txpool API.
rbuilder alongside Reth. Own blocks containing own bundles at zero bribe cost. Register with relays. Win slots during low-competition windows.
Searcher live on Base and OP Stack — flash loan hunters at $0.01-0.10 gas per trade, adapted to the flashblocks stream. L2 block building pursued via operator and RaaS relationships as external production opens up.
MEV protection agreements with Base protocols. Revenue sharing on captured backrun value. Each deal compounds block value and win rate.
Simultaneous L1 and L2 building enables cross-chain arbitrage. Atomic inclusion across domains. The moat deepens with every month of data and every protocol partner.
Ordexis is building relationships ahead of the block-building market opening up on L2. If any of these describe you, the next step is a conversation.
Base and OP Stack teams that want MEV protection for their users and a share of the backrun value their order flow generates — before external builders arrive and take it.
Protocols whose trading activity leaks value to third-party builders today. Ordexis returns that value through revenue-sharing order-flow agreements instead of extracting it.
Teams routing user transactions who want protected execution and a cut of the value their flow creates, rather than handing it to whoever builds the block.
Backers who understand the searcher-to-builder thesis and the ePBS timing window, and want exposure to vertically integrated block production across L1 and L2.
Methodology, data, and the receipts behind every claim on this page. First piece ships week of 2026-10-19.
Partnership (searcher consortium, wallet OF, protocol integration): email with subject [builder-partnership]. Research questions or data requests: subject [research].
ammon@ordexis.digital