Endpoint · otherPOSTsovereign-x402-zeta.vercel.app /api/v1/sequence/palindrome
Check if a given number is a palindrome.
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://sovereign-x402-zeta.vercel.app/api/v1/sequence/palindrome
Seen
first 34 days ago · last 12 days ago
55 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.774 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.226: 0.092 uncertain ? + 0.134 short ? · 0.026 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.33 | 0.232 | 0.046 | −0.134 | −0.020 | |
| liveness it answered at all |
0.60 | 1.00 | 0.879 | 0.528 | 0 | −0.072 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.774 | gap to 1.000 = 0.226 · 0.134 short · 0.092 uncertain | 0.774 | −0.134 | −0.092 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.200 × 0.232 latency p95
+ 0.600 × 0.879 liveness
+ 0.200 × 1.000 price stability
= 0.774 → UNRATED: 51 of 30 paid calls weights 2026.09.6 · 51 samples · seed cap_01M1A5QG1W3BZWV118X72J9NN8|2026-08-27T11:21:48.096Z|2026.09.6
Verify it yourself
npx teppi-check https://sovereign-x402-zeta.vercel.app/api/v1/sequence/palindromecurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QG1W3BZWV118X72J9NN8