VAEA Flash — Zero-CPI Standard

VAEA Flash is the Zero-CPI flash loan standard for Solana — the ERC-3156 of Solana, but better. Borrow any SPL token in a single atomic transaction, with the lightest footprint possible: 98 bytes of state, 5 accounts per IX, ~25K CU.

One SDK call. Any token. From 0.02% fee (SDK tier). ~100ms latency. Zero CPI consumed.

typescript

const sig = await flash.executeLocal({
  token: 'mSOL',
  amount: 5000,
  onFunds: async (ixs) => {
    ixs.push(myArbitrageInstruction);
    return ixs;
  },
});

Why VAEA Flash

Metric	VAEA Flash	Others
State size	98 B	1,500 — 4,000 B
Accounts / IX	5	11
CU per IX	~25K	50K — 80K
CPI consumed	0 ✨	1-2 levels
Multi-source	✅	❌
SDK features	11	1
Fee	2 bps (SDK)	0

11 SDK Features

Feature	Description
120+ Direct / Any SPL Synthetic	Direct from Marginfi + Kamino + Jupiter Lend. Smart Router picks cheapest path. Any SPL token via synthetic routing
Zero-CPI	FlashState PDA readable by any program — zero CPI depth consumed (~2K CU)
Turbo Mode	Build instructions locally in 0.1ms — zero HTTP, zero API
executeSmart()	Smart Router evaluates ALL paths — direct across 3 protocols + synthetic via SOL/USDC/USDT bridge — picks cheapest
readFlashState()	Read FlashState PDA on-chain for composability
Jito Bundles	Private bundles via Block Engine — invisible to MEV bots
Smart Retry	Automatic retry with escalating priority fees — only retries transient errors
Simulation	Dry-run against live state — no SOL spent, zero risk
Multi-Token Flash	Borrow 2-4 different tokens in a single atomic transaction
Fee Guard	Set max fee limit — SDK auto-rejects if cost exceeds threshold
Warm Cache	Pre-compute PDAs and ALT at boot for instant calls

Packages

VAEA ships 3 client SDKs (for bots, apps, scripts) + 1 on-chain crate (for Solana programs that want to verify flash loan context without CPI).

Package	Registry	Install	Usage
@vaea/flash	npm	`npm i @vaea/flash`	TypeScript SDK — bots, frontends, scripts
vaea-flash-sdk	crates.io	`cargo add vaea-flash-sdk`	Rust SDK — high-frequency bots
vaea-flash	PyPI	`pip install vaea-flash`	Python SDK — scripts, data science

On-Chain Integration

Crate	Registry	Install	Usage
vaea-flash-ctx	crates.io	`vaea-flash-ctx = "0.1"`	Zero-CPI verification — read FlashState PDA from your Solana program, 0 CPI consumed

ℹ️ Note

The 3 SDKs are client-side — they build and send transactions. The vaea-flash-ctx crate is on-chain — it lets your Solana program verify a VAEA flash loan is active without a CPI call. Different tools, complementary purposes.

Who Is It For

🤖

Liquidation Bots

Flash loan collateral tokens (JitoSOL, mSOL) to liquidate lending positions without owning the asset. ~100ms with Turbo Mode.

📊

Arbitrage Bots

Instant capital on any token pair. Flash, arb, repay — zero upfront capital. Multi-token flash for cross-pair strategies.

🏗️

DeFi Protocols

Integrate via SDK or add vaea-flash-ctx to your program for Zero-CPI verification.

👨‍💻

Solo Developers

Build with flash loans in minutes. No routing code, no pool management, no RPC lookups.

Status & Roadmap

⚠️ Warning

VAEA Flash v2 (Zero-CPI) is deployed on Solana Devnet. Mainnet launch expected April 2026.

Component	Status
Program v2 (Devnet)	✅ Live
REST API v2	✅ Live
TypeScript SDK (@vaea/flash)	✅ Built
Rust SDK (vaea-flash-sdk)	✅ Built
Python SDK (vaea-flash)	✅ Built
Zero-CPI Crate (vaea-flash-ctx)	✅ Ready
npm + crates.io + PyPI publish	After mainnet
Program (Mainnet)	April 2026