Endpoint · computePOSTsovereign-x402-zeta.vercel.app /api/v1/sequence/catalan
Calculate the nth Catalan number.
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/catalan
Seen
first 35 days ago · last 4 days ago
63 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.734 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.266: 0.098 uncertain ? + 0.168 short ? · 0.066 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| latency p95costs the most it answered as fast as its class |
0.20 | 0.16 | 0.000 | 0.000 | −0.168 | −0.032 | |
| liveness it answered at all |
0.60 | 1.00 | 0.890 | 0.534 | 0 | −0.066 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.734 | gap to 1.000 = 0.266 · 0.168 short · 0.098 uncertain | 0.734 | −0.168 | −0.098 |
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 × 0.890 liveness
+ 0.200 × 1.000 price stability
= 0.734 → UNRATED: 56 of 30 paid calls weights 2026.09.6 · 56 samples · seed cap_01M1A5QDT7NPRHDX16W8Y4WWYS|2026-09-03T12:47:49.921Z|2026.09.6
Verify it yourself
npx teppi-check https://sovereign-x402-zeta.vercel.app/api/v1/sequence/catalancurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QDT7NPRHDX16W8Y4WWYS