What is OpenX402?
OpenX402 is the first open x402 facilitator that enables any server to accept micropayments without API keys or KYC requirements. Built for the next generation of autonomous systems, OpenX402 bridges the friction between today’s web protocols and tomorrow’s agent-to-agent economies.Get started in minutes
Integrate OpenX402 into your application with our quickstart guide.
The Problem We Solve
Traditional payment systems weren’t built for autonomous agents and programmatic services. They require:- API keys and authentication
- KYC/identity verification
- Custodial accounts
- Complex integration processes
- Direct agent-to-agent transactions without intermediaries
- Instant micropayments for API access and services
- Usage-based monetization without custodial requirements
- HTTP-based payments that work anywhere
How It Works
Understand the Facilitator
Learn how OpenX402 coordinates payment verification and settlement.
Explore Use Cases
Discover what you can build with OpenX402.
Supported Chains
Base, X Layer, and Solana support with more coming soon.
API Reference
Complete API documentation for all endpoints.
Key Features
No Keys, No KYC
Open access for any developer or autonomous agent
Multi-Chain Support
Base, X Layer, and Solana with expanding network coverage
Instant Settlement
Real-time payment verification and settlement coordination
Trusted by Leading Projects
OpenX402 powers payments for top blockchain projects including ping.observer ($PING), demonstrating production-ready reliability at scale.Why OpenX402?
The internet needs a payment layer built for autonomous systems. OpenX402 enables:- AI agents to purchase data feeds, computational services, and API access
- Autonomous bots to make micropayments without human intervention
- Developers to monetize services without managing payment infrastructure
- Servers to gate endpoints based on payment, not identity
Try it now
Test OpenX402 with our live facilitator on Base