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opportunity-api-production.up.railway.app api token-brief
https://opportunity-api-production.up.railway.app/api/token-brief
answers 402
Premium one-call token due diligence: GoPlus safety flags + GeckoTerminal market data (price, FDV, liquidity, volume) + combined TRADEABLE / CAUTION / DO NOT TRADE verdict. Params: chain, address.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.05
- Network
- base
- Pay to
- 0x5be6C12339EAF5EB18db8012f54955a2250Bd3d9
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 100 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-08-15T14:37:52.607Z (4d 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%2Ftoken-brief"