the402 endpoint detail

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opportunity-api-production.up.railway.app api dex-volumes

https://opportunity-api-production.up.railway.app/api/dex-volumes

answers 402

Top-20 DEXes by 24h volume (DeFiLlama) with 1d/7d change and chains. Market structure signal.

We sent a real GET request to this endpoint and it answered 402 with payment requirements we could parse.
Price
$0.01
Network
base
Pay to
0x5be6C12339EAF5EB18db8012f54955a2250Bd3d9
Spec dialect
v2 (declares x402Version 2)
Transport
PAYMENT-REQUIRED header
HTTP method
GET
Response latency
90 ms
Payment options
1 usable of 1
Last checked
2026-08-15T14:37:52.928Z (1d ago)
Category
finance-crypto

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fopportunity-api-production.up.railway.app%2Fapi%2Fdex-volumes"