routing-validate?routingNumber=021000021

Validate a US ABA routing number by its 3-7-1 check digit and decode its Federal Reserve district and institution class.

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?

0xe025442c…fcd98638

URL

https://fittings.sh/v1/aba/routing-validate?routingNumber=021000021

Seen

first 34 days ago · last 20 days ago

41 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.3

UN
RATED

0.627 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by latency p95 · gap to 1.000 is 0.373: 0.097 uncertain ? + 0.276 short ? · 0.023 to C

How the composite of 0.627 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	0.00	0.000		0.000	−0.200	0
liveness it answered at all	0.60	0.87	0.711		0.427	−0.076	−0.097
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.627	gap to 1.000 = 0.373 · 0.276 short · 0.097 uncertain	0.627	−0.276	−0.097

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

The multiplication, written out

  0.200 × 0.000   latency p95    
+ 0.600 × 0.711   liveness       
+ 0.200 × 1.000   price stability
= 0.627           → UNRATED: 40 of 30 paid calls      weights 2026.09.3 · 40 samples · seed cap_01M1A5Q6PEPYK21T3VY3VQH4QV|2026-08-21T13:03:48.782Z|2026.09.3

Verify it yourselfnpx teppi-check https://fittings.sh/v1/aba/routing-validate?routingNumber=021000021curl -s https://api.teppi.xyz/v1/trust/cap_01M1A5Q6PEPYK21T3VY3VQH4QV