Barzkit — Self Custody Ai Agent Wallets

Name: Barzkit — Self Custody Ai Agent Wallets
Author: barzkit

@barzkit

Repository

About Barzkit — Self Custody Ai Agent Wallets

Self-custody AI agent wallets with passkeys, gasless transactions & programmable permissions (ERC-4337)

#typescript #sdk #web3 #ai-agents #defi #trust-wallet #account-abstraction #erc-4337 #smart-accounts #barz

Basic information

Config

Add this server to your MCP-compatible client using the configuration below.

{
  "mcpServers": {
    "barzkit": {
      "command": "npx",
      "args": [
        "@barzkit/mcp"
      ],
      "env": {
        "BARZ_OWNER_KEY": "0xYOUR_PRIVATE_KEY",
        "PIMLICO_API_KEY": "pim_YOUR_KEY",
        "BARZ_CHAIN": "sepolia"
      }
    }
  }
}

Tools

Create a new ERC-4337 smart account on Sepolia, Base Sepolia, or Base

Send ETH or ERC-20 tokens to a recipient address

Check wallet balance for ETH or specific token

Swap tokens on Uniswap V3

Deposit tokens into Aave V3 lending pool

Execute multiple transactions atomically in one UserOperation

Emergency freeze — kill switch

Resume normal wallet operations

Fetch URL with automatic x402 payment

Overview

What is Barzkit — Self Custody Ai Agent Wallets?

An MCP server that gives AI agents self-custody ERC-4337 smart wallets on Ethereum testnets and mainnets. Designed for use with Claude Desktop, Cursor, Windsurf, VS Code Copilot, and any MCP-compatible client.

How to use Barzkit — Self Custody Ai Agent Wallets?

Add a barzkit entry to your client’s MCP configuration file using npx @barzkit/mcp. After configuration, ask the AI assistant wallet‑related natural language commands. The create_wallet tool must be run first; afterward all other tools become available.

Key features of Barzkit — Self Custody Ai Agent Wallets

Create ERC-4337 smart accounts on Sepolia, Base Sepolia, or Base
Send ETH or ERC-20 tokens to any address
Check wallet balances for ETH or specific tokens
Swap tokens via Uniswap V3
Lend tokens into Aave V3 lending pools
Emergency freeze and unfreeze wallet operations

Use cases of Barzkit — Self Custody Ai Agent Wallets

An AI agent creates a self‑custody wallet and funds it
The agent sends payments or transfers tokens on the user’s behalf
Automated token swaps and DeFi lending executed through natural language
Batch multiple transactions into a single atomic UserOperation
Emergency freeze of the wallet when suspicious activity is detected

FAQ from Barzkit — Self Custody Ai Agent Wallets

What are the prerequisites?

Node.js ≥ 18, a Pimlico API key (free tier: 100 UserOps/day), and an owner private key.

Must `create_wallet` be called first?

Yes — the wallet must be initialized with create_wallet before any other tool can be used.

Does the server support token swaps and lending?

Yes. Swaps are done via Uniswap V3 and lending via Aave V3.

What blockchains are supported?

Sepolia, Base Sepolia, and Base.

Is there an emergency freeze feature?

Yes. freeze_wallet acts as a kill switch, and unfreeze_wallet resumes normal operations.

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