Deposit · USDC on Base

x402 Integration Sprint

$250 deposit · $2,500 total

Your existing paid API surface accepts x402 payments from agents on Base mainnet in one week.

One-week sprint: x402 middleware + one MCP tool + smoke tests + recorded walkthrough + one month of async follow-up.

What you get

x402 middleware wired into your Worker / Node / Python stack (I'll pick the right adapter).
Payment-required challenge tuned for your use case (price tiers, nonce strategy, per-route gating).
One MCP tool wrapping your API so Claude Code / Cursor / Windsurf agents can discover and pay for it.
Smoke tests + a recorded walkthrough of the paid flow so your team can maintain it.
One month of async follow-up if the facilitator behaves unexpectedly.

Pay $250 deposit · $2,500 total with x402 wallet → Email for fiat invoice

How to pay: click the button above and your wallet (Coinbase Wallet, MetaMask on Base, or any x402-aware client) will auto-settle the deposit. No wallet? Email roman@mondello.dev — happy to invoice via wire / Stripe / partner instead.

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USDC on Base mainnet · Settles to 0x0E4d…1028 · Refundable if Romy declines · Credited toward the first invoice on a real engagement.