the402 endpoint detail

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ai-data-marketplace-1042299154756.us-central1.run.app v1 whale_alerts

https://ai-data-marketplace-1042299154756.us-central1.run.app/api/v1/whale_alerts

answers 402

Read recent large ERC-20 transfers directly from Base, Ethereum, or Arbitrum by scanning Transfer logs over the most recent blocks and filtering by a minimum token amount. Defaults to USDC on Base. Public RPC providers cap the scan window, so this covers the most recent blocks rather than a long history, and it does not label exchange wallets.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.005
Network
base
Pay to
0x8647F7D7a1368a467Ad1FF757fBc2e7167973558
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
39 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:26:30.265Z (1h ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fai-data-marketplace-1042299154756.us-central1.run.app%2Fapi%2Fv1%2Fwhale_alerts"