powered by x402 Protocol
A Universal Gateway
for Permissionless AI Model Access
Access any LLM through a unified API powered by x402 microtransactions.
Pay per request, no API keys or subscriptions required.
Built for Developer Freedom
X-Router is a universal API gateway that provides OpenAI-compatible access to 200+ AI models through a single endpoint. It normalizes request/response schemas across different providers, handles automatic fallbacks, and enables dynamic model routing.
One API, All Models
Access OpenAI, Anthropic, Google, Meta, Mistral, and dozens more through a single endpoint. No need to manage multiple integrations.
No Lock-in
Switch between models and providers without code changes. Built-in reliability with automatic failover when providers are down.
Instant Access
With x402 integration, start using models immediately without signup, API keys, or subscriptions. Just pay per request.
Permissionless Access
Through Micropayments
X-Router leverages the x402 payment protocol to enable frictionless, pay-per-request access.
No accounts, no API keys, no gatekeepers — just instant micropayments that serve as both payment and authentication.
Make a Request
Send your prompt to xrouter's unified endpoint. Choose any model from 200+ options, or let our Auto Router select the best one.
x402 Payment
Server responds with payment requirements. Your wallet generates a micropayment in USDC on Base—typically $0.0001 to $0.01 per request.
Get Your Response
Payment is verified in 2 seconds, request is routed to the model, and you receive a standard OpenAI-compatible response.
OpenAI / GPT-4o
GPT-4o ("o" for "omni") is OpenAI's latest AI model, supporting both text and image inputs with text outputs. It maintains the intelligence level of GPT-4 Turbo while being twice as fast and 50% more cost-effective.
Ready to Get Started?
Join the future of AI infrastructure where developers pay only for what they use, model providers earn revenue seamlessly, and every transaction happens instantly on-chain. Start building with X-Router today – no subscriptions, no setup fees, just pure pay-per-use access to 200+ cutting-edge AI models.