the402 endpoint detail

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walcert.globalscoreagent.com certificates activity

https://walcert.globalscoreagent.com/v1/certificates/activity

answers 402

Grade 15-day wallet activity (counterparties, HHI, velocity, bot-like) A-F before you transact. POST wallet_address; signed certificate. $0.05 USDC.

We sent a real POST request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.05
Network
base
Pay to
0xF4D938200445B0Df0f028af6d90D016147AEd095
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
161 ms
Payment options
3 usable of 3
Last checked
2026-09-06T01:19:37.980Z (34d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fwalcert.globalscoreagent.com%2Fv1%2Fcertificates%2Factivity"