Give Your AI Agent
A Wallet That Works
Modern AI agents need to pay for tools, data, and compute \u2014 without asking a human every time. Set spending limits, fund with USDC, and let your agent operate 24/7.
- • Human approves every API wayment
- • Can't run unsupervised overnight
- • Shared API keys = no usage tracking
- • $0.30 minimum kills micropayments
- • Manual top-ups break automation
- • Agent pays autonomously per-call
- • Runs 24/7 within spending budget
- • Per-agent wallet = full audit trail
- • $0.001 micropayments supported
- • Auto-refill triggers via USDC
Agent Wallet Architecture
Quick Start (Node.js)
import { x402Middleware } from 'x402-express';
app.use('/tools/search', x402Middleware({
amount: '0.01', // $0.01 USDC per call
currency: 'USDC',
network: 'base',
payTo: process.env.WALLET_ADDRESS,
}));
app.post('/tools/search', (req, res) => {
// Your tool logic here — payment already verified
res.json({ results: search(req.body.query) });
});Pricing Model Options
Real AI agent wallet projects
Curated open-source implementations from the 119+ agent-wallet projects we track · stars live from GitHub.
The AI agent with a wallet — spends USDC autonomously to get real work done. Apache-2.0, TypeScript.
Give any AI agent a crypto wallet. Agents deserve access to money. Pay x402 APIs, receive USDC, check balances — autonomously. Works with Claude, LangChain, AutoGen, CrewAI, and any MCP client. EVM + Solana.
The best way to monetize AI applications & MCP, using x402, CDP Smart Wallets & Paymaster
A wallet for agents. Make payments via x402, use stablecoins, swap assets, earn yield with defi and buy tokenized stocks across the most popular chains.
Vault-0: Agent Security, Monitor & x402 Wallet for OpenClaw. Encrypted secret vault, real-time agent monitor, policy enforcement, and native x402 payments — built with Rust + Tauri.
Open-source wallet infrastructure for AI agents. Earn, spend, and trade USDC on Solana with human oversight and FROST threshold signing.
Frequently asked questions
What is an AI agent wallet?
An AI agent wallet is a crypto wallet (usually an EVM smart-contract or EOA wallet on Base) that an autonomous agent controls directly. It holds USDC and signs payments so the agent can pay for APIs, tools and data on its own, without a human approving each transaction.
How does an AI agent pay for things with a wallet?
When the agent calls a paid resource it gets back an HTTP 402 Payment Required with terms. Its x402 client signs a USDC transfer from the wallet, a facilitator settles it on-chain, and the request retries successfully — all automatically.
How do I stop an agent from overspending?
Add a spending-policy layer: per-call limits, daily caps and an allowlist of payable domains, enforced before any transaction is signed. Combined with an on-chain + local audit log, you get full cost control and traceability.
Which wallets work for AI agents?
Smart-contract wallets (e.g. Coinbase CDP / ERC-4337 accounts) are popular because they support spend policies and session keys, but a funded EOA works too. The curated projects above show real, open-source agent-wallet implementations.
What currency do agent wallets use?
Almost always USDC, a dollar stablecoin, settled on Base (and increasingly Solana). Stablecoins keep prices predictable for micropayments and avoid volatility.
Build it with the right tools
Pick a client library on the x402 SDKs page, see where wallets fit on the ecosystem map, or learn how to monetize the other side.