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api.hyperextend.xyz 100 oi
https://api.hyperextend.xyz/v1/outcome/100/oi
payable, partial
Derived two-sided open interest for a HIP-4 outcome market, per minute (circulating-supply times mark, summed over both sides). Priced per row ($0.000025 premium); served live. Takes the integer outcome id (e.g. 100).
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
It advertises 3 ways to pay and only 2 of them are usable.- Price
- $0.13
- Network
- base
- Pay to
- 0x548fC289526ab2F0391D562a723cdA64Bbf1abc4
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 987 ms
- Payment options
- 2 usable of 3
- Last checked
- 2026-08-10T09:09:16.606Z (1d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fapi.hyperextend.xyz%2Fv1%2Foutcome%2F100%2Foi"