sports?league=example&limit=1

Sports prediction markets across Polymarket and Kalshi in one call — game lines, futures, and props (NFL/NBA/MLB/NHL/soccer/tennis/etc).

Sports prediction markets across Polymarket and Kalshi in one call — game lines, futures, and props (NFL/NBA/MLB/NHL/soccer/tennis/etc). Optionally narrow with league (a tag/category keyword, e.g. nfl, soccer, world-cup) and cap with limit. Each hit is tagged with its venue and returns the question, live YES/NO price (implied probability), USD volume, close date, and the venue URL. Read-only, keyless.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.012 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2b6d4988…51fc32c5

URL

https://2s.io/api/predict/sports?league=example&limit=1

Seen

first 35 days ago · last 16 hr ago

57 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.733 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.267: 0.109 uncertain ? + 0.158 short ? · 0.067 to B

How the composite of 0.733 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	0.21	0.057		0.011	−0.158	−0.031
liveness it answered at all	0.60	1.00	0.869		0.522	0	−0.078
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.733	gap to 1.000 = 0.267 · 0.158 short · 0.109 uncertain	0.733	−0.158	−0.109

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

The multiplication, written out

  0.200 × 0.057   latency p95    
+ 0.600 × 0.869   liveness       
+ 0.200 × 1.000   price stability
= 0.733           → UNRATED: 47 of 30 paid calls      weights 2026.09.6 · 47 samples · seed cap_01M1A5QD8387EDXV8EFZHNJ2X5|2026-08-28T15:23:49.398Z|2026.09.6

Verify it yourselfnpx teppi-check https://2s.io/api/predict/sports?league=example&limit=1curl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QD8387EDXV8EFZHNJ2X5