x402
An open-source, web-native payment protocol enabling autonomous AI agents to transact over HTTP.
About
x402 is an open, neutral standard for internet-native payments that natively enables payments between clients and servers using HTTP 402. It aims to create win-win economies for agentic payments at scale, empowering a more free and fair internet by allowing any request to require payment without accounts or fees. This standard serves developers and AI agents looking for a frictionless, instant, and decentralized way to transact online.
Technology stack
detected 2026-06-17Est. monthly stack spend~$160/mo
CDN
Vercel
Emailunknown
HostingVercel
Stack
Next.js
Tailwind CSS
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Frequently asked
What does x402 do?
x402 is an open, neutral standard for internet-native payments that natively enables payments between clients and servers using HTTP 402. It aims to create win-win economies for agentic payments at scale, empowering a more free and fair internet by allowing any request to require payment without accounts or fees. This standard serves developers and AI agents looking for a frictionless, instant, and decentralized way to transact online.
Where is x402 headquartered?
x402 is headquartered in San Francisco, United States.
When was x402 founded?
x402 was founded in 2025.
What industry does x402 operate in?
x402 operates in Fintech, Blockchain, AI, Payments, Agentic AI.