The Payment Layer
for AI Agents
x402 enables AI agents to autonomously pay for resources and services across the internet. No API keys. No subscriptions. Just seamless, pay-per-use access to any monetized endpoint.
Total Volume
Active Resources
Transactions (24h)
Facilitators
Servers and Resources
Resources are monetized API endpoints. Servers host and manage collections of resources. Together, they form the supply side of the x402 economy.
Top Servers
| Server | Resources | Calls | Revenue |
|---|---|---|---|
| AgentCloud | 128 | 892K | $298K |
| DataMesh | 89 | 1.2M | $187K |
| x402jobs | 47 | 285K | $142K |
Top Resources
| Resource | Price | Calls (30d) |
|---|---|---|
| Stock Data Feed | $0.0005/call | 2.8M |
| Web Scraper Pro | $0.001/call | 892K |
| GPT-4 Turbo | $0.002/call | 483K |
| Image Generator | $0.01/call | 127K |
| Workflow Executor | $0.005/call | 48K |
Payment Facilitators
Facilitators handle the payment flow between agents and servers. They abstract away blockchain complexity and provide instant, verifiable payments.
Coinbase Facilitator
Transaction volume over 30 days
$1.2M
Total Volume
67K
Transactions
Who's Building
A growing ecosystem of tools, services, and infrastructure enabling the x402 economy.
Client-Side Integrations
Services & Endpoints
Infrastructure & Tooling
Learning & Community
Why This Matters
The internet was built for humans. Pages, forms, subscriptions, API keys—all designed for people to navigate and negotiate. But AI agents don't work like that. They need to access resources programmatically, instantly, and at massive scale.
x402 creates a new primitive: the ability for any software agent to pay for any resource, in real-time, with no pre-negotiation. It's HTTP extended with native payments.
“In five years, more economic activity will happen between machines than between humans and machines.”
x402 is the infrastructure that makes this possible. It's how agents will pay for compute, data, inference, and every other resource they need to be useful.
Get Started
Three paths into the x402 ecosystem
Build with x402
Add payment capabilities to your AI agents with our SDKs and tooling.
Monetize Your API
Turn any API into a paid resource with our server middleware and facilitator integrations.
Join the Community
Connect with builders, learn from experts, and shape the future of agent payments.