Astra Protocol — Multi-Chain Loss Protection (Testnet Live)

Choose Your Price Floor

Set a floor for your balance. Downside loss is automatically settled and compensated by underwriting reserves.

Recipient Wallet or @username

Protected Amount Oracle: $108.49

SOL SOL $108.49

Floor Price (USD) Downside trigger

Protection Window

Live Dynamic Underwriting Quote

Real-time oracle observation, reserve capacity check, and 78/12/7/3 fee splits.

Pricing Engine

Downside Protection Visualizer

Oracle Spot

Guaranteed Floor

Protected Zone

Downside Buffer

-12.4%

Max Covered Payout

$488.20 USDC

Underwriting Tier

Optimal (92% Cap)

Astra Non-Linear Duration Pricing Curve

Active: 30 bps

Entry Oracle Price $108.49

Notional Value $542.45

Maximum Payout Capacity (90%) $488.20

Underwriting Risk Premium $1.46 USDC

Keeper Automation Fee $0.05 USDC

Protocol Treasury Share (12%) $0.17 USDC

              Total Premium Due
              $1.51 USDC
            

On-Chain Devnet Settlement: Expired positions are queried against fresh oracle timestamps. If market price drops below the entry/floor, loss is credited automatically from `AstraReserveVault`.

Create Protected Invoice

Accept crypto payments with instant value protection for yourself or your customers.

Merchant Receiving Address

Amount & Token

Rate Lock Window

Pay Protected Invoice

Paste an invoice token (ast_...) to load payment terms and execute with automatic Rate Lock.

Invoice Token

Active Protection Positions

Monitor open positions, view settlement status, and execute claims.

ID	Protection Type	Asset & Amount	Entry / Floor Price	Expiry	Status	Action
🛡️ No Open Protection Positions Create a position in the Protect panel to lock rates or set a depeg floor.

Provide Underwriting Reserves

Deposit USDC to underwrite multi-chain protection and earn 78% of protocol risk premiums.

Active Underwritten $17.55M (78%)

Liquidity Buffer $3.38M (15%)

Safety Reserve $1.57M (7%)

Deposit Amount Balance: 10,000.00 USDC

USDC

Projected APY 11.8%

Underwriting Fee Share 7,800 bps (78%)

Withdrawal Timelock 7 Days

Your Reserve Position

Track your deposited liquidity and accrued underwriting yield.

Your Shares 1,000 Astra-LP

Claimable Yield $42.80 USDC

              Total Value
              $1,042.80 USDC
            

Cryptographic Receipt Registry

Verify payment receipts, anchored zero-knowledge proofs, and duplicate prevention hashes.

Lookup Payment Hash

Astra Username Registry

Universal username directory mapping human-readable handles (@name) to your wallet address.

Resolve Username

Developer Documentation & API Sandbox

Integrate multi-chain downside protection, dynamic oracle quotes, and zero-knowledge settlement into your protocols.

Open Full Documentation Portal

Interactive Protocol API Sandbox

Live Endpoints

Execute live requests against the local Astra protocol daemon and Pyth Douro Labs streams.

GET /api/v1/health

GET /api/v1/quote?asset=SOL&amount=5

GET /api/v1/history?symbol=SOL

TypeScript SDK Quickstart

$ npm install astra-protocol-sdk TypeScript

import { AstraClient } from 'astra-protocol-sdk';

// Initialize Unified Multi-Chain Client (Testnet)
const astra = new AstraClient({
  endpoint: 'http://localhost:4000',
  defaultChain: 'solana'
});

// Request Live Downside Protection Quote
const quote = await astra.getQuote({
  chain: 'solana',
  asset: 'SOL',
  amount: 5.0,
  floorPrice: 95.00,
  durationSeconds: 86400,
  mode: 'depeg-shield'
});

console.log('Total Premium Due:', quote.totalDue, 'USDC');

Smart Contracts & Pricing Math

Astra Protocol Engine

Formal verification, fee distribution algebra, and deployed cross-chain addresses.

Non-Linear Duration Pricing Formula

P = N × [ Base(T) + Volatility_Buffer ] × Tier_Multiplier

Where N = Notional Value ($), T = Protection Window in Seconds.
• T ≤ 1h: 30-40 bps (high frequency rate lock)
• T = 24h: 100 bps (standard daily depeg shield)
• T = 7d: 150 bps | T = 30d: 250 bps

Fee Distribution Split (10,000 bps Basis)

Underwriting LP Pool 7,800 bps (78.0%)

Protocol Treasury 1,200 bps (12.0%)

Safety Reserve Vault 700 bps (7.0%)

Keeper Automated Settlement 300 bps (3.0%)

Multi-Chain Deployed Registry

Solana Testnet Program ABMTT5W2UNn5BZG8285V9Uzn3h5c1G3rG7YeCPMn7714

Arbitrum Sepolia Engine 0x732E212e3d745a8d6493e9aB065771dDeC0f9342

Hyperliquid Testnet Vault 0x7FdA9C1d8806495476cAa4871cB6fF663b8F1A04