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.
AiMo Network
AI Agents“We tried many x402 facilitators in the early development stages. PayAI offers the most stable and covered services so we don't have to worry about our LLMs api calls failing at the facilitator level. Bullish on the PayAI team!”
AiMo Network Team
Serpent
AI Agents“We started talking with PayAI before Serpent even launched. Their expertise and guidance were massive for us while we were still figuring things out, and the impact they're having, not just on x402 but the space as a whole, is something we really respect. We're huge fans of what they're building and look forward to working together more as we both grow.”
Serpent Team
Trusted by 1000+ companies of all sizes
Blog
Stay up to date with the latest from PayAI
Agentic Payments: How AI Agents Pay, Transact, and Power the Future of Commerce
The definitive guide to agentic payments: how AI agents pay for things, which companies are building (Mastercard, Visa, Stripe, x402), real-world use cases, and how to build agent-native payment infrastructure.
PayAI Network
3/23/2026
Open APIs Without Abuse: Let the Market Decide
Discover how the x402 protocol revolutionizes open APIs by replacing rate limits with transparent pricing, enabling economic self-regulation and minimizing abuse without sacrificing access. Learn more about this game-changing approach.
PayAI Network
2/20/2026
Product Update: PayAI Facilitator Pricing Is Now Live
Discover the new PayAI facilitator pricing model, offering the first 1,000 settlements free and a low $0.001 per transaction thereafter. Learn how to manage your credits and streamline your transactions today.
PayAI Network
2/16/2026
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.
