the402 endpoint detail

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link-preview-cache-api.onrender.com preview

https://link-preview-cache-api.onrender.com/preview

answers 402

Fetch Open Graph / meta metadata (title, description, image, favicon, canonical URL) for a public URL - served from a shared cache when available, which is what keeps the price below a fresh-fetch-every-time service. Response includes a 'cached' field.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.003
Network
base-sepolia
Pay to
0x7556A8772e508a8b63F8BBb4f9E6945De0017f4f
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
229 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:12:59.633Z (22d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Flink-preview-cache-api.onrender.com%2Fpreview"