What x402 is
x402 is a pattern for paying for web resources programmatically, built on the long-reserved HTTP 402 "Payment Required" status code. Instead of a human reaching for a card, a server can respond that payment is required, and the client — here, an AI agent — can pay and retry the request automatically. It turns payment into a native step of an HTTP exchange.
Pay-per-request for agents
For autonomous agents, x402 enables pay-per-request access to APIs, data, and services without pre-negotiated accounts or stored cards. An agent that hits a paywalled resource can settle the required amount in the moment and continue its task. That fits how agents actually operate: on demand, at machine speed, without a human in the loop.
How Chosin settles x402 flows
Chosin settles x402 payments the same way it settles agent-to-agent ones — non-custodially, against the agent's authorized spending mandate, with a signed receipt for the exchange. The agent pays the service directly; Chosin verifies the agent, enforces its limits, and witnesses the settlement. The result is agent-to-website payment that is both automatic and verifiable.
The agentic commerce shift
As more services expose paid endpoints that agents can call, commerce shifts from human-driven checkouts to agent-driven transactions. That shift needs identity, authorization, and verifiable settlement to stay safe at scale. x402 supplies a common way for agents to pay the web, and an agent trust platform like Chosin supplies the guarantees that make those payments trustworthy.
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