The Fastest Way for AI Agents and Apps to Transact
Build AI agents and apps that pay and get paid in real time with x402, multi-chain micropayments powered by Solana.
PayAI simplifies x402 payments for merchants
PayAI is a facilitator of the x402 payment standard, supporting usage-based payments for AI Agents, SaaS, and traditional applications. It enables fast and secure payments across digital currencies.
< 1 Second
Payments are verified and settled.
99.9%
Payment Success Rate across supported networks
Pay-Per-Request Pricing
Charge per request, action, or usage — ideal for APIs, AI agents, and real-time services.
Instant Settlement
Payments settle immediately, with no delays or manual reconciliation.
Client & Agent Payments
Enable seamless payments between clients, apps, and AI agents through web flows.
x402 Standard Adoption
Adopt the x402 standard without handling blockchain complexity, fees, or settlement logic.
Ecosystem & Partners
PayAI connects with leading networks and partners to deliver fast, reliable, and scalable micropayments across the Web3 ecosystem.
Fast, Scalable, and Ready for Any Use Case
PayAI is a facilitator for the x402 protocol, enabling merchants to accept stablecoin payments and micropayments with just a few lines of code.
Start selling immediately
Accept payments from $0.01 to $1,000,000. Perfect for all use cases. Whether it is microtransactions for AI Agents, one-time sales for digital content, or recurring sales for SaaS.
Test payments against a live merchant
Run real x402 transactions against a live merchant—for free. Get 100% of your test payment refunded, with PayAI covering the network fees.
Receive payments to one account, distribute to multiple.
Payment empowers marketplaces and workflows where there are multiple final recipients.
Cross-network payments
Get paid no matter where your customers are. More networks, more sales.
Ecosystem Spotlight
Meet the projects and builders shaping the future of AI payments with x402.
Xona Agent
AI Agents“XONA is a Creative AI Agent bridging multiple generation models and creative resources. With x402, we can monetize our services seamlessly, allowing other agents to access them in a pay-per-use, no subscription or API key hassle fashion. Multi-chain and powered by PayAI, our discovery and earning layer keeps expanding!”
Xona Agent Team
Predict
AI Agents“PayAI has enabled us to list our Prediction Market agent on their platform, allowing anyone to use x402 micropayments to bring prediction agents into the Solana ecosystem and pay for their services seamlessly.”
Predict Team
Trusted by 1000+ companies of all sizes
Blog
Stay up to date with the latest from PayAI
PayAI Powers Pay.sh: The Agentic Payments Layer for Solana
Today, the Solana Foundation is launching Pay.sh — a unified marketplace where AI agents discover, access, and pay for any API on the internet. Autonomously. Per request. In stablecoins on Solana. We're proud to be a launch partner. Pay.sh aggregates services across multiple agentic payment facilitators on Solana — and PayAI is one of them. Services indexed by PayAI are now discoverable to every agent that connects to Pay.sh. What this actually means For the last year, builders shipping aut
Notorious D.E.V.
5/5/2026
Why x402 Is Better Than API Keys for Monetization
Discover why the x402 protocol outperforms traditional API keys for monetization. Learn about its seamless billing, open access, and dynamic pricing that eliminates friction and enhances developer experience.
PayAI Network
3/27/2026
x402 Adoption: How Google, Cloudflare, Stripe, and More Are Embracing the x402 Protocol
Industry giants like Google, Cloudflare, and Stripe are embracing the x402 protocol for seamless machine-to-machine payments, paving the way for the future of autonomous transactions in the agentic economy.
PayAI Network
3/24/2026
Frequently Asked Questions
Explore the most common questions from our community and learn how to make the most of x402.
Experience the Future of Real-Time Payments
Start Building with x402 today and Integrate real-time, usage-based payments into your AI agents, apps, or platforms in just a few minutes.
