hmac-sha512-base64url

Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as base64url.

Call when an agent needs an HMAC-sha512 of text with a caller-supplied key, encoded as base64url. Exact $0.003 USDC. Prefer unpaid POST /v1/sandbox/hmac-sha512-base64url first.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.003 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x1d61faa0…e0e55a38

URL

https://agentshelf.syntexa.ch/v1/hmac-sha512-base64url

Seen

first 10 days ago · last 4 days ago

17 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC

Listed on?

Base

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.751 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 0.249: 0.230 uncertain ? + 0.018 short ? · 0.049 to B

How the composite of 0.751 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	0.616		0.370	0	−0.230
latency p95 it answered as fast as its class	0.20	0.91	0.909		0.182	−0.018	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.751	gap to 1.000 = 0.249 · 0.018 short · 0.230 uncertain	0.751	−0.018	−0.230

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

The multiplication, written out

  0.600 × 0.616   liveness       
+ 0.200 × 0.909   latency p95    
+ 0.200 × 1.000   price stability
= 0.751           → UNRATED: 16 of 30 paid calls      weights 2026.09.6 · 16 samples · seed cap_01M38Z3PWJWGZYK5MK1G4NPZS7|2026-09-03T14:54:35.249Z|2026.09.6

Verify it yourselfnpx teppi-check https://agentshelf.syntexa.ch/v1/hmac-sha512-base64urlcurl -s https://api.teppi.xyz/v1/trust/cap_01M38Z3PWJWGZYK5MK1G4NPZS7