glossary-term type

Publications

Ordered by date created, newest first. All 6 publications are shown on this page.

Agent-to-Agent Commerce: When Software Buys From Software 2026-08-27 · glossary-term
Agent-to-agent commerce is exchange in which an autonomous software agent initiates and settles a purchase, usually per call, with no human approving each.
Machine-Payable API: An API Priced Per Call for Software Buyers 2026-08-27 · glossary-term
A machine-payable API charges per call through an inline payment challenge that software can satisfy with no signup, card or human approval, typically via x402.
Micropayment: Why Tiny Payments Failed for Decades and What Changed 2026-08-27 · glossary-term
A micropayment is a payment so small that processing cost and approval friction have exceeded its value; stablecoin rails and x402 aim to fix both.
What Is x402? The HTTP 402 Payment Protocol Explained 2026-08-27 · glossary-term
x402 is an open protocol that uses the HTTP 402 Payment Required status code so a client can pay for a web request with a stablecoin, with no account needed.
x402 Bazaar: The Discovery Layer for Payable Resources 2026-08-27 · glossary-term
The x402 Bazaar is a version 2 discovery extension for payable HTTP resources and MCP tools; Coinbase runs one index, but no single marketplace.
x402 Facilitator: The Party That Verifies and Settles Payments 2026-08-27 · glossary-term
An x402 facilitator is an optional third party that verifies a buyer's signed payment, screens it for compliance and submits settlement on-chain for the seller.