arc-bridge

What it really costs to bring USDC into Arc over Circle CCTP, measured from arrivals rather than quoted.

What it really costs to bring USDC into Arc over Circle CCTP, measured from arrivals rather than quoted. Every arrival we hold with its recipient, the amount credited, the fee CCTP took and the transaction, plus observed fees grouped by transfer size. Read from MintAndWithdraw on TokenMessengerV2 0x28b5a0e9C621a5BadaA536219b3a228C8168cf5d, whose event signature we verified by hashing it rather than assuming it, and filtered to the USDC contract on every single log.

UNRATEDListed

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?

0xd334ab51…dc4217ed

URL

https://apexfaucet.xyz/api/x402/arc-bridge

MCP server on this host: xyz.apexfaucet/apex-x1

Seen

first 7 days ago · last 13 hr ago

12 free handshakes

Payment

Pays through

x402

Offered on?

Arc, Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.425 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 0.575: 0.315 uncertain ? + 0.260 short ? · 0.025 to D

How the composite of 0.425 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.90	0.375		0.225	−0.060	−0.315
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.425	gap to 1.000 = 0.575 · 0.260 short · 0.315 uncertain	0.425	−0.260	−0.315

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

The multiplication, written out

  0.600 × 0.375   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.425           → UNRATED: 12 of 30 paid calls      weights 2026.09.6 · 12 samples · seed cap_01M3GPA9JMDRBDSNV76WBH84ZD|2026-09-04T15:03:00.808Z|2026.09.6

Verify it yourselfnpx teppi-check https://apexfaucet.xyz/api/x402/arc-bridgecurl -s https://api.teppi.xyz/v1/trust/cap_01M3GPA9JMDRBDSNV76WBH84ZD