matched-pairs?limit=1&minScore=0

Cross-venue equivalent-market pairs for arbitrage / relative-value spotting.

Cross-venue equivalent-market pairs for arbitrage / relative-value spotting. We fuzzy-match open Polymarket vs Kalshi markets by title-token overlap and return candidate pairs with both venues' YES prices and the implied-probability spread (Polymarket YES minus Kalshi YES). Tune with minScore (0-1 title-similarity floor) and limit. Heuristic — a high score is a strong candidate, not a guaranteed identical contract. Read-only, keyless. No public source maps these directly; the pairing is derived by 2s.io.

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/matched-pairs?limit=1&minScore=0

Seen

first 5 days ago · last 4 days ago

8 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

0.388 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 0.612: 0.460 uncertain ? + 0.152 short ? · 0.062 to D

How the composite of 0.388 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.233		0.140	0	−0.460
latency p95 it answered as fast as its class	0.20	0.24	0.241		0.048	−0.152	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.388	gap to 1.000 = 0.612 · 0.152 short · 0.460 uncertain	0.388	−0.152	−0.460

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

The multiplication, written out

  0.600 × 0.233   liveness       
+ 0.200 × 0.241   latency p95    
+ 0.200 × 1.000   price stability
= 0.388           → UNRATED: 8 of 30 paid calls      weights 2026.09.6 · 8 samples · seed cap_01M3NV4K2TET086PZQ0AT7HDCP|2026-09-04T04:02:05.341Z|2026.09.6

Verify it yourselfnpx teppi-check https://2s.io/api/predict/matched-pairs?limit=1&minScore=0curl -s https://api.teppi.xyz/v1/trust/cap_01M3NV4K2TET086PZQ0AT7HDCP