abstract-global-wallet

Abstract Global Wallet

AGW is Abstract's cross-application smart contract wallet. Users sign up once (email, social, passkey) and use it across all Abstract apps. Recommended over standard wallet connections for new Abstract apps — see the decision table below for when to consider alternatives.

For AI agent wallet access (not end-user facing), see the using-agw-mcp skill instead.

Quick Start (New Project)

npx @abstract-foundation/create-abstract-app@latest my-app

This scaffolds a React app with AGW pre-configured.

Quick Start (Existing React Project)

1. Install

npm install @abstract-foundation/agw-react @abstract-foundation/agw-client wagmi viem@2.x @tanstack/react-query

viem must be 2.x. Using viem 1.x causes compatibility errors.

2. Wrap with provider

import { AbstractWalletProvider } from "@abstract-foundation/agw-react";
import { abstractTestnet } from "viem/chains"; // or abstract for mainnet

export default function App() {
  return (
    <AbstractWalletProvider chain={abstractTestnet}>
      {/* Your app */}
    </AbstractWalletProvider>
  );
}

3. Add login

import { useLoginWithAbstract } from "@abstract-foundation/agw-react";

export default function LoginButton() {
  const { login, logout } = useLoginWithAbstract();
  return <button onClick={login}>Login with Abstract</button>;
}

4. Send transactions

import { useAbstractClient } from "@abstract-foundation/agw-react";

export default function SendTx() {
  const { data: abstractClient } = useAbstractClient();

  async function send() {
    if (!abstractClient) return;
    const hash = await abstractClient.sendTransaction({
      to: "0x...",
      data: "0x...",
    });
  }

  return <button onClick={send}>Send</button>;
}

5. Sponsored transactions (gas-free for users)

import { useWriteContractSponsored } from "@abstract-foundation/agw-react";
import { getGeneralPaymasterInput } from "viem/zksync";

export default function SponsoredMint() {
  const { writeContractSponsored, isPending } = useWriteContractSponsored();

  return (
    <button
      disabled={isPending}
      onClick={() =>
        writeContractSponsored({
          abi: contractAbi,
          address: "0xContractAddress",
          functionName: "mint",
          args: ["0xRecipient", BigInt(1)],
          paymaster: "0xPaymasterAddress",
          paymasterInput: getGeneralPaymasterInput({ innerInput: "0x" }),
        })
      }
    >
      Mint (Gas Free)
    </button>
  );
}

Decision Tables

AGW vs Standard Wallets

Use Case	AGW	Standard (MetaMask/EOA)
New Abstract app	Yes	No
Cross-app wallet identity	Yes	No
Email/social login	Yes	No
Session keys (gasless UX)	Yes	No
Gas sponsorship	Yes	Paymaster only
Existing wallet user base	Consider both	Yes

Session Keys vs Direct Transactions

Use Case	Session Keys	Direct Approval
Games / frequent actions	Yes	No
One-time transactions	No	Yes
No-popup UX	Yes	No
High-value transactions	No	Yes
Testnet	Yes	Yes
Mainnet	Requires security review	Yes

Feature Reference

Feature	Where to look
React hooks API	references/react-hooks.md
Session keys (create, use, revoke)	references/session-keys.md
Third-party wallet providers	references/wallet-providers.md

Packages

Package	Purpose
@abstract-foundation/agw-react	React hooks + AbstractWalletProvider. Built on Wagmi.
@abstract-foundation/agw-client	Wallet actions + session key utilities. Built on Viem.

Gotchas

• viem 2.x required — AGW is incompatible with viem 1.x
• Chain must be abstract or abstractTestnet — AbstractWalletProvider throws on unsupported chains
• Session keys on mainnet need security review — testnet is permissionless, mainnet requires registry approval
• Session key signers are sensitive — never store private keys in localStorage; use encrypted browser storage or server-side KMS
• approve/setApprovalForAll in session policies must include constraints restricting to a specific contract address, or the registry will reject