aeX402

The AMM That Learns

Lower fees when markets are calm. Higher fees when they're not. aeX402 is the first AMM with on-chain reinforcement learning — a Q-Learning brain that watches every swap and autonomously tunes fees, amplification, and farming rewards to maximize returns for liquidity providers. Launch tokens for 0.1 SOL. Provide concentrated liquidity. Govern pool parameters with your LP tokens. All in 189KB of pure C on Solana.

Swap SOL/USDC Launch DEX Autopilot Install CLI Whitepaper

How It Works

Swap

Pick a pool — SOL/USDC, stables, or any pair on Solana mainnet

Set amount + slippage — ML-adjusted fee shown upfront

One transaction — swap executes atomically, pool updates candles + TWAP

Provide Liquidity

Choose a range — full range or concentrated (higher APY, more risk)

Deposit tokens — receive LP tokens representing your share

Earn — swap fees + flash loan fees + farming rewards accumulate automatically

Launch a Token

Create virtual pool — 0.1 SOL, bonding curve starts, 1-hour clock begins

Community trades — buys raise price, sells extract 80% to farming pool

Graduate or die — hit target within 1h → real AMM + farming. Miss it → 99.9% to protocol treasury, 0.1% to cranker

Economics

Swap0.30% fee

→

50%→ LPs

50%→ Protocol

→

ML Trainingfunded by admin fees

Failed Launchflushed after 1h

→

Pool Erasedall SOL liquidity

→

Protocol Treasury99.9% of flush

swap fees: 50% LP / 50% protocol · failed virtual pools: 99.9% → protocol treasury + 0.1% → cranker

Swap Fees

Default fee30 bps (0.30%)

LP share50% of every swap

Admin share50% (funds ML)

ML fee range1–100 bps

ML auto-adjusts within bounds. Calm market = lower fee = more volume = more total revenue for LPs.

Token Launches

Launch cost0.1 SOL

Bonding curve fee1% (100 bps)

Sell → farming80% extracted

Graduation target10–200 SOL

Graduation reward0.1% to triggerer

Deadline1 hour (hard)

Failurepool flushed → protocol treasury (99.9%)

Miss the 1h deadline and the pool is flushed. 99.9% goes to protocol treasury with 0.1% cranker reward. Real consequences create real urgency.

Yield Sources

Swap fees50% of 30 bps

Flash loan fees0.09%–1.0%

Farming rewardstime-locked

LotteryLP ticket system

Treasury99.9% of failed pool flushes

LP yield from fees, flash loans, farming. Protocol treasury receives 99.9% of all virtual pools that fail to graduate (0.1% to cranker) — the protocol's insurance backstop.

Security

35 audit findings. All resolved. Two independent security audits covering every handler, math function, and edge case. 366 test cases. Honggfuzz invariant fuzzing on all StableSwap math. Full audit report available on request.

Circuit BreakersAuto-pause on 10% price deviation or 10x volume spike. 6-hour auto-resume. Manual override for admin.

Rate LimitingPer-epoch volume and swap count caps in 5-minute windows. Prevents sustained wash trading and manipulation.

Oracle ValidationPyth/Switchboard price checks on every swap. 5-minute staleness limit. Swap fails if price deviates >5%.

Admin Timelocks1-hour commit delay on amp changes and authority transfers. Two-step process prevents instant privilege escalation.

Flash Loan GuardReentrancy prevention via state flag. Dynamic fees scale with borrow size and volatility. Atomic repayment enforced.

Anti-ManipulationCL positions require 5-minute hold (anti-JIT). Governance snapshots prevent flash-loan voting. Virtual pool wallet caps and vesting prevent dumps.

Under the Hood

Single-file C. Manual u128 arithmetic. Switch dispatch (no vtables in BPF). Delta-encoded analytics. No allocator, no runtime. Here's how the core mechanisms work.

StableSwap Invariant 4A(x + y) + D = 4AD + D³/(4xy)

Hybrid curve blending constant-product (xy=k) and constant-sum (x+y=k) via amplification coefficient A. Newton-Raphson solving converges in 6–10 iterations. A=1 behaves like Uniswap, A=100K near-zero slippage for pegged assets. N-token generalization supports 2–8 token pools.

On-Chain Q-Learning V2 Q[s][a] ← Q[s][a] + α(r + γ max Q[s′][a′] − Q[s][a])

First production reinforcement learning on a blockchain. 27 states × 9 actions = 243 Q-values stored on-chain. V2: Volatility-aware states — volatile pools track volatility trend (not price) as primary dimension, so the brain raises fees in turbulent markets and lowers them when calm. Explicit action tracking eliminates misattribution. Delegated architecture: swaps record observations at ~200 CU; bot triggers batch training at ~100K CU. Users never pay for ML compute.

Swapuser tx

→

Observe~200 CU

→

Buffer×200 samples

→

Train~100K CU

→

Q-Table27×9=243

→

fee± amp±auto-apply

user pays ~200 CU (negligible overhead) · bot pays ~100K CU (funded by protocol fees) · V2: explicit action + volatility tracking

Multi-Objective Reward V2: configurable weights R = w₁·r_stability + w₂·r_volume + w₃·r_traders + w₄·r_tvl + w₅·r_fees

Five reward components, each configurable per pool. Stable pools penalize price deviation; volatile pools maximize fee×volume product. V2 adds fee efficiency as an explicit objective and lets pool operators tune weights via cfgml. ε-greedy exploration (10%, decaying) prevents local optima.

STABLE POOL DEFAULTS

stability

30%

volume

25%

traders

20%

tvl

15%

fees

10%

VOLATILE POOL DEFAULTS

fees

30%

volume

25%

tvl

25%

traders

15%

stability

all weights configurable per pool via cfgml · volatile pools use volatility-aware state encoding

On-Chain Analytics & TWAP 24 hourly + 7 daily OHLCV candles · 12 bytes each · delta-encoded

Circular buffer candles updated every swap. TWAP oracle with confidence scores based on sample count, trade frequency, and price variance. Composable by other programs — no off-chain indexer dependency. Circuit breakers auto-pause on 10% price deviation or 10x volume spike.

Comparison

Feature	aeX402	Raydium	Orca	Curve (EVM)
On-chain ML	Q-Learning V2 brain	—	—	—
Adaptive fees	ML-optimized 1–100 bps	Fixed	Dynamic tiers	Fixed per pool
StableSwap	A=1..100K	Stable pools	—	3pool, metapools
Concentrated liq.	Tick ranges + CL	CLMM	Whirlpool	—
Token launches	Virtual pool grad.	AcceleRaytor	—	—
LP governance	On-chain voting	—	—	veCRV
On-chain candles	24h + 7d OHLCV	—	—	—
Flash loans	Dynamic fees	—	—	Fixed fee
Limit orderbook	Hybrid AMM+LOB	OpenBook	—	—
Binary size	189 KB (C)	~400 KB (Rust)	~300 KB (Rust)	N/A (EVM)
N-token pools	2–8 tokens	2 tokens	2 tokens	2–4 tokens

Binary sizes are approximate. Competitor features based on public documentation as of 2026.

Release Notes

v0.12.0 — July 2026 — release notes

Launchpad from the terminal

aex rh launches / info / create / buy / sell — the Robinhood Chain launchpad in your shell, plus native EIP-1559 transfers via aex rh send. The sale token's decimals are read on-chain rather than declared, so --decimals is gone along with the class of order that was wrong by a factor of a thousand.

Graduated coins are tradable

One-click buy of a graduated coin against its live AMM pool, end to end from the feed. Graduated coins flip to a live-AMM view instead of showing a curve that no longer prices them, and slippage protection is computed from the pool's actual reserves rather than accepting whatever comes back.

The terminal is 67% smaller

5.0 MB down to 1.7 MB. The WebAssembly build was emitting explicit zero-filled data instead of relying on memory already being zero; packing it changes nothing about behaviour and everything about how long the page takes to start.

Earlier — v0.3.0 through v0.11.0 — full changelog

Browser DEX Terminal — v0.2.0

Full terminal DEX at /dex/ — 12 live panels, pool picker, swap execution, wallet management, Nostr-backed community discussions. 375KB WASM, 30 color themes, mouse + keyboard navigation. No extensions, no installs.

Direct Mouse Handling

Reliable click-to-select on pools, tabs, and panels. Direct WASM handle_mouse export bypasses xterm.js escape sequence issues. Scroll wheel support for pool lists and panel content.

Swap UX Overhaul

Pool picker overlay (press p), quick-select amounts (1=25%, 2=50%, 3=75%, 4=MAX), flip direction (f), adjustable slippage (t). On-chain quote with price impact display.

V2 Settings Persistence

32-byte settings format: panel order, custom layout weights, visible panel mask, and theme selection all persist to localStorage. Panel drag-reorder and custom column weights.

Migration Docs Panel

Inline migration documentation with 13 migration types, scrollable viewer (press ? in migration sub-tab). Farm CLI commands for create/close operations.

30 Color Themes

GitHub Dark, Dracula, Monokai, Nord, Solarized, Gruvbox, Tokyo Night, Catppuccin, One Dark, Ayu, Everforest, Kanagawa, Rose Pine, Material, Palenight, Nightfox, Synthwave 84, Horizon, Vesper, Poimandres, plus 4 light themes (Solarized Light, GitHub Light, E-Ink, Paper), High Contrast, Cyberpunk, and DOS.

Mobile & Cross-Platform

Capacitor/Android wrapper for native mobile builds. Cross-compiled release binaries for Linux (amd64/arm64), macOS (amd64/arm64), and Windows (amd64). One-line install: curl -sSf https://aex402.com/install.sh | sh

v0.1.0 — January 2026
Initial release. 85+ instruction handlers, on-chain Q-Learning V2, virtual pool graduation, concentrated liquidity, flash loans, multi-hop routing, limit orderbook, farming, lottery, governance, TWAP oracle, circuit breakers. 189KB pure C binary. 35 audit findings resolved. 366 test cases.