perps

Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage…

Live state of every perpetual-futures market in one call: per coin the mark and oracle price, hourly funding rate with annualized APR, premium, open interest, max leverage, previous-day price, and 24h USD and base volume. Native crypto-derivatives data — funding and open interest are perp-only, absent from any spot feed. Free on-chain DEX data (venue: Hyperliquid), no key. From x402stock

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.02 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x3070fbb3…a877fa85

URL

https://x402stock.vercel.app/api/v1/perps

Seen

first 35 days ago · last 12 days ago

55 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.726 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.274: 0.074 uncertain ? + 0.200 short ? · 0.074 to B

How the composite of 0.726 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
latency p95costs the most it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	1.00	0.877		0.526	0	−0.074
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.726	gap to 1.000 = 0.274 · 0.200 short · 0.074 uncertain	0.726	−0.200	−0.074

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.877   liveness       
+ 0.200 × 1.000   price stability
= 0.726           → UNRATED: 50 of 30 paid calls      weights 2026.09.6 · 50 samples · seed cap_01M1A5Q9YQMDG1D0MF9333GDVQ|2026-08-27T10:18:20.212Z|2026.09.6

Verify it yourselfnpx teppi-check https://x402stock.vercel.app/api/v1/perpscurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q9YQMDG1D0MF9333GDVQ