Pay per use

Call any model endpoint and settle each request in USDC over x402, no accounts, no API keys.

Every model is gated by the x402 HTTP payment protocol. Call an endpoint and you receive a 402 Payment Required response with payment instructions. Complete the Solana USDC payment, then retry with the payment proof header. Your inference runs automatically. No accounts, no API keys, metered per request.

Capabilities

Vision (image input)
Reasoning effort control
System prompts
Multi-model endpoints
On-chain verified (TEE) inference on select models
OpenAI-compatible models flagged where available

# 1) Call the endpoint, receive 402 Payment Required with payment requirements
curl -X POST "https://api.xona-agent.com/llm/nim" \
  -H "Content-Type: application/json" \
  -d '{"model":"llama-3.3-70b","messages":[{"role":"user","content":"Explain x402 in one line"}]}'

# 2) Sign the Solana USDC payment with your x402 client, then retry with the proof header
curl -X POST "https://api.xona-agent.com/llm/nim" \
  -H "Content-Type: application/json" \
  -H "X-PAYMENT: <x402-payment-payload>" \
  -d '{"model":"llama-3.3-70b","messages":[{"role":"user","content":"Explain x402 in one line"}]}'

See x402 for the full payment flow and AI services for the model catalog.

For programmatic payments, the Xona Wallet SDK/CLI handles the 402 flow automatically. See the SDK.

Capabilities

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