Agent commerce, explained

Practical guides for developers turning APIs and MCP servers into products AI agents can buy — per-call pricing, stablecoin settlement, and the discovery layer that brings buyers to you.

Monetize MCP

How to monetize an MCP server

A practical guide to charging for MCP tool calls: why subscriptions and API keys fail for agent buyers, and how per-call x402 pricing works end to end.

Per-call billing

Charge for your API per call

Usage-based API billing without accounts, keys, or invoices: how HTTP 402 micropayments price each request in cents and settle instantly in USDC or EURC.

Accept USDC

Accept USDC for your API

Accept USDC (and EURC) for API requests on Base: how x402 settlement works, what reaches your wallet, and how to go live with the ArisPay facilitator.

Agent buyers

Sell API access to AI agents

AI agents are becoming API customers. What agent buyers need from your API — machine-readable contracts, per-call pricing, programmatic payment — and how to provide it.