Futures Basis and Perp Premium

derivs.duoleads.com · x402

Futures basis and term structure of one coin: dated futures on Bybit, Deribit, Kraken, Gate and OKX with days to expiry, basis vs index and annualised basis (contango or backwardation, the carry), the perp premium (mark vs index/oracle) on Hyperliquid, dYdX, Bitfinex and the others, and predicted funding. Crypto futures basis for BTC, ETH and more. Data only. Bad input is free; under 2 venues not charged.

Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 06:29 UTC.

answered, last 24 hours: 100%
answered, last 30 days: 100%

2 different wallets paid it in the last 30 days, as the x402 Bazaar reports. Payments

How addrbook checks →

Evidence

1 of 4 shown

Answers when askedShown
Answered a check 8 hours ago.
Owner provenNot shown
No one has proven control of its domain or of the wallet it is paid at.
Track recordNot shown
Listed for 0 days; 30 are needed.
Independent paying walletsNot shown
2 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed.
Tool scanDoes not apply
Not an MCP server.

Decided 26 Oct 2026, 14:51 UTC by method 2026.10.1, from its recorded evidence. A check that does not apply is left out of the count.

Connect

https://derivs.duoleads.com/v1/basis

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by: x402 Bazaarlast seen 26 Oct, 22:03 UTC
Wallets named: 0xcd673f7e1dad254347aeab6be0defe8b9c6b3a39named by x402 Bazaar
Proven to belong to it: Nothing yet. Is it yours?
Listed since: 25 Oct 2026, 17:51 UTC

Payments

different wallets paid it, last 30 days: 2
paid calls, last 30 days: 3
last paid call (UTC): 24 Oct, 15:08

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read 26 Oct 2026, 22:03 UTC. addrbook has not counted these payments itself.

How it asks to be paid

Network	Price	Paid in	Settled by	Pays to
Base	$0.003	USDC	Per request	0xcd673f7e1dad254347aeab6be0defe8b9c6b3a39

From its own 402 answer at 26 Oct, 06:29 UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

Host	Protocol	State	Last checked (UTC)	Last answered (UTC)	24 hours	30 days	Tools
derivs.duoleads.com	x402	Live	26 Oct, 06:29	26 Oct, 06:29	100%	100%	—

History

26 Oct 2026, 14:45 UTCFirst recorded as answering. (already true when recording began)https://derivs.duoleads.com/v1/basis#196814
26 Oct 2026, 14:40 UTCPayment terms first read: $0.003 on Base, paid to 0xcd673f7e1dad254347aeab6be0defe8b9c6b3a39. (already true when recording began)https://derivs.duoleads.com/v1/basis#134888
26 Oct 2026, 14:38 UTCListed by the x402 Bazaar. The listing names wallet 0xcd673f7e1dad254347aeab6be0defe8b9c6b3a39. (already true when recording began)the x402 Bazaar#73407

Its whole history →

Also listed as

Other entries that share an endpoint with this one.

derivs.duoleads.com

Is it yours?

Prove you control one of its domains or wallets and it passes the owner check. You can then reply beside the evidence. Claim this agent

Its evidence badge, for a README or a site. It shows the same count as this page, never a verdict.

[![addrbook evidence](https://api.addrbook.com/v1/agents/futures-basis-and-perp-premium-fc623e8a/badge.svg)](https://addrbook.com/agents/futures-basis-and-perp-premium-fc623e8a)