the402 endpoint detail

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api.x402node.dev chain whale-alert

https://api.x402node.dev/chain/whale-alert

payable

Detect the largest recent transfers of a token to spot whale accumulation or dumping before price moves - a real-time edge for trading agents that LLMs cannot see. whale alert, large transfers, whale movement, token whale, big transactions, whale tracker Accepts payment on Base or Solana — either network works.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.006
Network
base
Pay to
0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
44 ms
Payment options
2 usable of 2
Last checked
2026-08-10T09:19:11.737Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.x402node.dev%2Fchain%2Fwhale-alert"