Astereum
Astereum
Astereum — Ethereum Perpetual Engine
Mainnet Beta · Arbitrum & Base

The perpetual
engine of
Ethereum L2.

Trade ETH & BTC perpetuals up to 25x with USDC collateral. Then let an AI agent run your playbook — bounded by on-chain session keys you control.

Launch Trading Deploy Agent
TVL
$148.2M
24h Volume
$2.4B
Active Agents
1,283
Astereum logo
ETH-USDC LIVE
$2,393.12
Pyth Oracle · 400ms
Core Modules
Perpetual Protocol
vAMM-style pricing pool, inspired by GMX v2.
Liquidity Engine
USDC-collateralized multi-asset pool.
Risk Engine
Per-block OI caps, price bands, dynamic margin.
Trading Core
ETH & BTC perps, up to 25x, on-chain funding.
Settlement Layer
Non-custodial, geofenced, audited contracts.
Oracle Layer
Pyth Network sub-second price feeds.
Differentiator

An AI co-pilot
with on-chain guardrails.

Two layers, one philosophy: agents never bypass your wallet policy. Natural language becomes intent. Intent becomes a transaction preview. Only you — or a session key you scoped — can sign.

Natural-language trader
Type "long ETH 5x with $500, stop loss at -10%" — the assistant parses intent, previews the trade, and hands you an unsigned transaction.
Autonomous agents
ERC-4337 smart accounts with scoped session keys: spending caps, whitelisted markets, max leverage, size limits, time expiry, kill-switch.
Defense in depth
Strict schema validation, hard on-chain caps, oracle price bands, per-block OI limits. Prompt injection cannot exceed your scope.
Agent Session KeyACTIVE
{
  "wallet": "0xA3…e4F2",
  "agent": "Grid-Scalper v1",
  "policy": {
    "markets": ["ETH-USDC"],
    "maxLeverage": 5,
    "maxPositionUsd": 1000,
    "spendCapUsd": 2000,
    "expiresAt": "2026-04-29T09:05:13Z",
    "killSwitch": "owner-only"
  },
  "signatures": {
    "scheme": "ERC-4337",
    "validator": "0x9c…e1"
  }
}
Enforced at the smart-account level. Not at the UI.
Use Cases

Manual Trader

Open ETH long 10x, trail stop with NL commands, close positions from your phone.

Example
"long ETH 10x with $1000, trail stop 5%"

Yield-Farming Agent

Agent funding-rate arb — scope it to $5k notional, 3x max, ETH+BTC markets, 30 days.

Example
Session key · spend≤$5000 · lev≤3x

Strategy Vault Creator

Publish your agent policy, earn fees when others copy-deploy with their own caps.

Example
Grid-Scalper v1 · 142 copies · 63% WR