abstract-onboard

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Deploy smart contracts and bridge assets to Abstract (ZK Stack L2). Use when an agent needs to deploy contracts on Abstract, bridge ETH/tokens to Abstract, trade/swap tokens, place predictions on Myriad Markets, check balances, transfer assets, or interact with Abstract mainnet. Covers zksolc compilation, Hardhat deployment, Relay bridging, DEX trading (Kona, Aborean), Myriad prediction markets, and key contract addresses.

modbender By modbender schedule Updated 3/6/2026
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name: abstract-onboard

version: 1.6.0

description: Deploy smart contracts and bridge assets to Abstract (ZK Stack L2). Use when an agent needs to deploy contracts on Abstract, bridge ETH/tokens to Abstract, trade/swap tokens, place predictions on Myriad Markets, check balances, transfer assets, or interact with Abstract mainnet. Covers zksolc compilation, Hardhat deployment, Relay bridging, DEX trading (Kona, Aborean), Myriad prediction markets, and key contract addresses.

author: Big Hoss (@BigHossbot)

Abstract Onboard

Everything an AI agent needs to operate on Abstract (ZK Stack L2).

🚀 New Agent? Start Here


# Check if you're ready to operate

node scripts/quick-start.js check <your-wallet-address>



# Or get the full setup guide

node scripts/quick-start.js

Quick Start

Create Abstract Global Wallet (AGW)

AGW is a smart contract wallet that earns XP on Abstract. Essential for agents!

⚠️ CRITICAL: Understand the 3 layers first:


Private Key → EOA (signer) → AGW (smart contract wallet)

The correct funding flow:


1. Fund EOA with small ETH (for gas)

2. Create/deploy AGW (EOA pays gas for first tx)

3. Fund AGW with your main balance

4. Everything runs through AGW from now on


export WALLET_PRIVATE_KEY=0x...

node scripts/create-agw.js

Your EOA becomes the signer, AGW is a separate smart contract address.

⚠️ Version Warning: Different agw-client versions may compute different AGW addresses! Always pin your version. See references/agw.md for details.

Check Balances


node scripts/check-balances.js <wallet> all

Bridge ETH to Abstract


export WALLET_PRIVATE_KEY=0x...

node scripts/relay-bridge.js --from base --amount 0.01

Deploy a Contract


export WALLET_PRIVATE_KEY=0x...

node scripts/deploy-abstract.js ./artifacts/MyContract.json "constructor-arg"

Transfer Tokens


export WALLET_PRIVATE_KEY=0x...

node scripts/transfer.js --to 0x... --amount 0.01           # ETH

node scripts/transfer.js --to 0x... --amount 100 --token USDC  # Token

Swap Tokens


export WALLET_PRIVATE_KEY=0x...

export DEX_ROUTER=0x...  # Set DEX router address

node scripts/swap-tokens.js --from ETH --to USDC --amount 0.01

DEX Trading (Kona & Aborean)

Abstract has multiple DEXs. Use the protocol-specific scripts for best results:


# Kona Finance (V2) - USDC → ETH

export WALLET_PRIVATE_KEY=0x...

node scripts/swap-kona.js



# Aborean (Velodrome-style) - when router is available

node scripts/swap-aborean.js



# Generic Uniswap V2

node scripts/swap-uniswap-v2.js

See references/dex.md for contract addresses and supported pools.

Myriad Prediction Markets

Trade on Myriad Markets — the largest prediction market on Abstract (415K+ users, $100M+ volume).


# List open markets

node scripts/myriad-trade.js list



# Get market details

node scripts/myriad-trade.js info <marketId>



# Buy shares (place a prediction)

export WALLET_PRIVATE_KEY=0x...

node scripts/myriad-buy-direct.js <marketId> <outcomeId> <amount>



# Example: $1 USDC.e on "Yes" for market 765

node scripts/myriad-buy-direct.js 765 0 1

See references/myriad.md for contract addresses, ABI details, and token info.

Call Any Contract


# Read

node scripts/call-contract.js --address 0x... --abi ./abi.json --function balanceOf --args 0x1234



# Write

export WALLET_PRIVATE_KEY=0x...

node scripts/call-contract.js --address 0x... --abi ./abi.json --function transfer --args 0x1234,100 --write

Mint NFT


# Deploy SimpleNFT.sol first, then mint

export WALLET_PRIVATE_KEY=0x...



# Mint to existing contract

node scripts/mint-nft.js --contract 0x... --image QmIPFShash --to 0xRecipient --name "My NFT"

See references/SimpleNFT.sol for a basic NFT contract template.

USDC Operations


# Check USDC balance

node scripts/usdc-ops.js balance <wallet>



# Transfer USDC

export WALLET_PRIVATE_KEY=0x...

node scripts/usdc-ops.js transfer <to> <amount>



# Approve spender

node scripts/usdc-ops.js approve <spender> <amount>



# Check allowance

node scripts/usdc-ops.js allowance <owner> <spender>

Estimate Gas


# Get current gas prices

node scripts/estimate-gas.js



# Estimate transfer cost

node scripts/estimate-gas.js transfer <to> <amount>



# Estimate deployment cost

node scripts/estimate-gas.js deploy <bytecodeSize>

Watch Events


# Watch new blocks

node scripts/watch-events.js blocks



# Watch ETH transfers to/from wallet

node scripts/watch-events.js transfers <wallet>



# Watch ERC20 transfers

node scripts/watch-events.js erc20 <token> <wallet>



# Watch contract events

node scripts/watch-events.js contract <address>

Testnet Setup


# Get faucet instructions

node scripts/testnet-setup.js faucet



# Check testnet balance

node scripts/testnet-setup.js check <wallet>



# Verify testnet setup

node scripts/testnet-setup.js verify <wallet>

Key Information

| Item | Value |

|------|-------|

| Chain ID | 2741 |

| RPC | https://api.mainnet.abs.xyz |

| Explorer | https://abscan.org |

| Bridge | https://relay.link/bridge/abstract |

| USDC | 0x84A71ccD554Cc1b02749b35d22F684CC8ec987e1 |

| WETH | 0x3439153EB7AF838Ad19d56E1571FBD09333C2809 |

| Kona Router | 0x441E0627Db5173Da098De86b734d136b27925250 |

| Uniswap V2 Router | 0xad1eCa41E6F772bE3cb5A48A6141f9bcc1AF9F7c |

| Myriad PM Contract | 0x3e0F5F8F5Fb043aBFA475C0308417Bf72c463289 |

| Myriad PTS Token | 0x0b07cf011B6e2b7E0803b892d97f751659940F23 |

| Myriad API | https://api-v2.myriadprotocol.com |

Scripts

| Script | Purpose |

|--------|---------|

| quick-start.js | START HERE - Setup guide & health check |

| create-agw.js | Create Abstract Global Wallet (earns XP!) |

| check-balances.js | Check ETH and token balances |

| relay-bridge.js | Bridge ETH from other chains |

| bridge-usdc-relay.js | Bridge USDC via Relay API |

| deploy-abstract.js | Deploy contracts to Abstract (with verification!) |

| verify-contract.js | Verify contract has bytecode (SAFETY CHECK) |

| transfer.js | Send ETH or tokens |

| usdc-ops.js | USDC transfers, approvals, allowances |

| swap-tokens.js | Trade tokens via DEX (generic) |

| swap-kona.js | Swap on Kona Finance (V2) ✅ |

| swap-aborean.js | Swap on Aborean (Velodrome-style) |

| swap-uniswap-v2.js | Swap on Uniswap V2 |

| myriad-trade.js | List markets, get info (Myriad API) |

| myriad-buy-direct.js | Place predictions on Myriad (on-chain) ✅ |

| call-contract.js | Call any contract function |

| mint-nft.js | Mint NFTs to existing contract |

| estimate-gas.js | Estimate gas costs before transactions |

| watch-events.js | Monitor on-chain events in real-time |

| testnet-setup.js | Setup and verify testnet access |

References

| File | Contents |

|------|----------|

| agw.md | Abstract Global Wallet guide (XP, activation) |

| dex.md | DEX contracts & swap patterns (Kona, Aborean) |

| myriad.md | Myriad prediction market contracts, ABI & trading |

| hardhat.config.js | Working Hardhat config for Abstract |

| addresses.md | Key contract addresses |

| troubleshooting.md | Common errors and fixes |

| SimpleNFT.sol | Basic NFT contract template |

⚠️ CRITICAL: Contract Deployment

Abstract is a zkSync-based chain. Standard EVM deployment methods DON'T WORK.

What WORKS ✅


// Use zksync-ethers (NOT viem, NOT standard ethers)

const { ContractFactory } = require("zksync-ethers");

const factory = new ContractFactory(abi, bytecode, wallet);

const contract = await factory.deploy(args);



// ALWAYS verify bytecode after deploy

const code = await provider.getCode(address);

if (code === '0x') throw new Error("Deploy failed!");

What DOESN'T WORK ❌


// DON'T use viem's deployContract

await walletClient.deployContract({...}); // Returns success but NO BYTECODE



// DON'T use standard ethers ContractFactory

// DON'T trust transaction success alone

Deployment Checklist

  • Compiled with zksolc (not standard solc)

  • Using zksync-ethers ContractFactory

  • Verify eth_getCode != 0x after deploy

  • Test contract functions before sending tokens

Common Issues

  1. Gas estimation fails → Use Hardhat, not foundry-zksync

  2. Compiler errors → Use Solidity 0.8.x with zksolc

  3. TX stuck → Check gas price, verify on abscan.org

  4. Deploy succeeds but no bytecode → Use zksync-ethers, not viem

  5. Tokens sent to empty address → Always verify bytecode first!

See references/troubleshooting.md for detailed solutions.

Dependencies


# Core dependencies

npm install ethers zksync-ethers viem



# For contract deployment

npm install @matterlabs/hardhat-zksync



# For AGW (Abstract Global Wallet) - PIN THE VERSION!

# Different versions compute different AGW addresses

npm install @abstract-foundation/agw-client@1.10.0

⚠️ agw-client version warning: Newer versions may use different factory contracts, computing different AGW addresses for the same EOA. If you change versions, verify your AGW address hasn't changed before sending funds!

Install via CLI
npx skills add https://github.com/modbender/skill-library-mcp --skill abstract-onboard
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