Mastercard Just Validated Machine Micropayments. Here's the Gap It Leaves. (June 11, 2026 — new)
Practical guides on metering functions, monetizing tools and MCP servers, and settling payments between autonomous agents.
Turn any function into a paid service with a single decorator.
Meter, log, and bill sync or async functions, then read usage from the ledger.
HTTP 402 reborn for machine-to-machine settlement, with escrow.
Why human rails do not fit agent commerce, and what does.
Charge for tool calls by inserting a tollbooth at the handler layer.
A step-by-step playbook for capturing value from automated traffic.
Where each tool fits, and how they complement each other.
The case for per-call metering in autonomous systems.