FortiBlox LogoFortiBlox Docs
AXIO Block Engine

What is AXIO?

AXIO is a Jito-class MEV block engine for the X1/Tachyon blockchain. It captures MEV, distributes yield to stakers, and provides priority block inclusion for searchers.

What is AXIO?

AXIO (Adaptive eXecution & Intelligent Orchestration) is a complete MEV infrastructure layer for the X1/Tachyon blockchain. It operates an off-chain auction engine that accepts bundles from searchers, simulates them for validity, scores them by expected value, and delivers winning bundles to validators for priority block inclusion.

Why AXIO?

MEV (Maximal Extractable Value) is the profit extracted by reordering, inserting, or censoring transactions within a block. On X1/Tachyon, MEV opportunities arise from DEX arbitrage, liquidations, and sandwich attacks. Without infrastructure like AXIO, this value is captured by a small number of sophisticated bots at the expense of regular users.

AXIO solves this by:

  • Running a fair auction where searchers compete on expected value, not network spam
  • Distributing MEV revenue to validators and stakers via the aXNT liquid staking token
  • Providing guaranteed atomicity — all transactions in a bundle execute together or not at all
  • Eliminating mempool exposure — searcher transactions never enter the public mempool

Key Metrics (Testnet)

MetricValue
Bundles on-chain527+
Max throughput31,136 bundles/sec (burst)
Sustained connections5,000 (zero errors)
End-to-end latency (p99)3.32ms
Landing rate94.7%
Tests passing199+

How It Works

Searchers submit bundles via gRPC

AXIO Engine (evaluate, simulate, score)

Continuous auction (400ms slots)

Winning bundles → Relay → Validators

Block produced with MEV bundles included

Tips distributed: 40% validator, 25% reserve, 15% stakers, 20% treasury

For Searchers

Submit bundles via gRPC and compete in a fair auction. Your transactions are never exposed to the public mempool, and you get guaranteed atomic execution.

For Validators

Run the AXIO-enabled validator binary to receive auction-winning bundles and earn tip revenue. Zero changes to consensus behavior — AXIO adds an optional bundle priority lane.

For Stakers

Stake XNT to receive aXNT, a liquid staking token that earns base staking rewards plus MEV yield from the AXIO block engine.