the402 endpoint detail

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graphadvocate.com hyperliquid screen

https://graphadvocate.com/hyperliquid/screen

answers 402

Size-the-room for a Hyperliquid market. POST {coin, n?}. Returns the top N (default 10, max 25) traders on a coin ranked by volume, each with skill_score + classification + liquidation_count. Pre-trade check for MM agents: 'who am I about to be against on this perp, and have they been liquidated before?' Coin format: BTC, @107 (spot), xyz:SILVER.

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
0x0FF5A6ecef783BBA35463ec2F8403B9B5e9e7C86
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
POST
Response latency
36 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:30:55.593Z (1h ago)
Category
other

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fgraphadvocate.com%2Fhyperliquid%2Fscreen"