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Agent payments. Explained plainly.

How an AI agent finds a company that can help, pays it for one call and gets the result, and what x402 has to do with it.

01
What is x402?
x402 turns HTTP 402 Payment Required into a payment step: the server names a price, the client pays in USDC, retries and gets the result. Step by step.
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02
How an AI agent pays for an API
A person funds a wallet and sets the rules; the agent finds a service, pays per call within them and gets the result. Agent payments with MCP and x402.
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03
Pay per call vs subscription
When paying per API call beats a monthly plan, and when it does not. A plain comparison for teams whose AI agents use many services a little.
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