Endpoint · market dataPOSTmarkt.halowerk.com/arbitrage

Walks the visible book of every requested exchange for the given size, in both directions, and works out what remains of the raw spread: gross_spread_bps from top of book, then…

Walks the visible book of every requested exchange for the given size, in both directions, and works out what remains of the raw spread: gross_spread_bps from top of book, then the taker fee of the entry tier on both sides, then the slippage the size causes on the buy book and on the sell book. net_spread_bps is the headline number, the gross value stands next to it because on its own it is misleading. Transfer costs are the part no public exchange interface publishes without a key: withdraw fee

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.006 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2880edff…771c4e5e

URL

https://markt.halowerk.com/arbitrage

Seen

first 34 days ago · last 26 days ago

29 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.1

UN
RATED

0.557 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.443: 0.167 uncertain ? + 0.276 short ? · 0.093 to C

How the composite of 0.557 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.69	0.414		0.248	−0.185	−0.167
latency p95 it answered as fast as its class	0.20	0.54	0.543		0.109	−0.091	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.557	gap to 1.000 = 0.443 · 0.276 short · 0.167 uncertain	0.557	−0.276	−0.167

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

The multiplication, written out

  0.600 × 0.414   liveness       
+ 0.200 × 0.543   latency p95    
+ 0.200 × 1.000   price stability
= 0.557           → UNRATED: 28 of 30 paid calls      weights 2026.09.1 · 28 samples · seed cap_01M1A5Q98T7JMZG2YVPRMJA4J4|2026-08-15T21:06:38.212Z|2026.09.1

Verify it yourselfnpx teppi-check https://markt.halowerk.com/arbitragecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q98T7JMZG2YVPRMJA4J4