An API you pay about 10 cents a call to use — no signup, no card, no account. You pay from your own wallet, per call. Prices are in USDC, a digital dollar: 0.10 USDC = about 10 cents.
POST /api/pay/bnkr/<tool>. With no payment you get a 402 carrying the exact price and receiver.X-IB-Payment-Tx: <your tx hash>. The worker reads the chain, confirms your USDC reached the Safe, then serves the data.You never share a private key and we never take custody. If the data fetch fails, your payment is released so you can retry with the same tx hash.
Every paid call is sealed into a tamper-evident hash chain. Verify any receipt publicly, no login:
GET /api/receipt/<id>
The same tools are wired as an MCP server that routes through this pay lane, so an agent can pay and call them directly. Package is live on npm.
IronBridge · x402 on Base · home