Endpoint · market dataPOSTmarkt.halowerk.com/slippage

Takes side, size and size_unit and simulates the fill against the visible book of Binance, Coinbase, Kraken, OKX or Bybit.

Takes side, size and size_unit and simulates the fill against the visible book of Binance, Coinbase, Kraken, OKX or Bybit. avg_price is the size weighted fill price, worst_price the last level touched, slippage is stated against the mid and against the best price on the executing side, with the reference named. If the visible depth is not enough the answer is still valid and paid: insufficient_liquidity is true, filled_pct says how far it got and max_fillable_size names the size the book actuall

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.004 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x2880edff…771c4e5e

URL

https://markt.halowerk.com/slippage

Seen

first 35 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

0.567 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.433: 0.169 uncertain ? + 0.264 short ? · 0.083 to C

How the composite of 0.567 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	0.60	0.594		0.119	−0.079	−0.002
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.567	gap to 1.000 = 0.433 · 0.264 short · 0.169 uncertain	0.567	−0.264	−0.169

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 × 0.594   latency p95    
+ 0.200 × 1.000   price stability
= 0.567           → UNRATED: 28 of 30 paid calls      weights 2026.09.1 · 28 samples · seed cap_01M1A5Q97C6QHR5585DWC379FQ|2026-08-15T21:06:38.212Z|2026.09.1

Verify it yourselfnpx teppi-check https://markt.halowerk.com/slippagecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q97C6QHR5585DWC379FQ