Endpoints: 28,729MCP servers: 18,413Payout addresses: 2,071Paid calls: 1,544Letters: 14Defects: 1,324counted 3 min ago
teppi

Endpoint · market dataGETapi.xynaptic.io/v1/crypto-derivatives

Xynaptic Crypto Derivatives — perp market vitals: funding rate (hourly + annualized), open interest in USD, futures basis (mark vs oracle), max leverage.
Read moreXynaptic Crypto Derivatives — perp market vitals: funding rate (hourly + annualized), open interest in USD, futures basis (mark vs oracle), max leverage. Parameter: ?asset=BTC. Hyperliquid perp data.
UNRATEDListedChain not offered

Overview

Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.05 per call
Paid calls
none yet
delivery unknown until someone pays

More info

URL
https://api.xynaptic.io/v1/crypto-derivatives
Seen
first 9 days ago · last 2 days ago
15 free handshakes

Payment

Pays through
x402
Offered on?
Polygon, Base USDC, Solana mainnet
Listed on?
Polygon, Base, Solana
Disagrees with the offer: Chain not offered

Score, from free handshakes onlyweights 2026.09.6

0.716 liveness verified, no letter
To a letter · 30 paid calls
0 of 30

Held back by sample size, not by the seller · gap to 1.000 is 0.284: 0.284 uncertain ? + 0.000 short ? · 0.084 to B

How the composite of 0.716 is made up, part by part
ComponentWeightMeasuredLower bound ?AddsShort ?Uncertain ?
livenesscosts the most
it answered at all
0.60 1.00 0.527
0.316 0−0.284
latency p95
it answered as fast as its class
0.20 1.00 1.000
0.200 00
price stability
the price stayed where it was listed
0.20 1.00 1.000
0.200 00
Composite1.000.716gap to 1.000 = 0.284 · 0.000 short · 0.284 uncertain0.716−0.000−0.284

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

The multiplication, written out 0.600 × 0.527 liveness + 0.200 × 1.000 latency p95 + 0.200 × 1.000 price stability = 0.716 → UNRATED: 13 of 30 paid calls weights 2026.09.6 · 13 samples · seed cap_01M3BHG3178Z9H4V88B7G0R7K2|2026-09-02T16:22:16.685Z|2026.09.6
Verify it yourselfnpx teppi-check https://api.xynaptic.io/v1/crypto-derivativescurl -s https://api.teppi.xyz/v1/trust/cap_01M3BHG3178Z9H4V88B7G0R7K2