What it is
Paste a wallet address and get its activity, its transfers and a plain-language summary of what it has been doing. There’s no account and no plan. Each query is paid for on its own in USDC, from $0.05 for transfers to $1.00 for a full report.
The same service is available three ways:
- A web app, with Sign-In with Ethereum.
- A REST API for scripts.
- An MCP server, published on npm as
@walletlens/mcp. Claude, Cursor and other agents can look up a wallet and pay for the answer themselves.
Why it exists
WalletLens is the other side of MonkePay. MonkePay lets an API charge agents; WalletLens is an API built from the start for agents to be paying customers. It’s one backend serving two kinds of client: people sign in with their wallet, and machines pay with x402.
How it works
Wallet data comes from Arkham and is cached in Redis for five minutes, so repeated questions about the same wallet don’t cost twice upstream. Claude turns the structured data into the written summary. People sign in with Ethereum and get a JWT; agents skip all of that and simply pay.