the402 endpoint detail

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api.relaystation.ai v1 qr

https://api.relaystation.ai/v1/qr

payable

$0.0002/call. Generate QR codes as PNG or SVG — size, error-correction, and margin control. 1¢ x402 min; remainder auto-credits — relaystation.ai/penny

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x5F7254f252eF9b9f92B6B4F2cF91205eD7A96C7A
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
56 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:12:28.540Z (1d ago)
Category
ai-inference

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.relaystation.ai%2Fv1%2Fqr"