Endpoint · otherGETrandomfactsx402.vercel.app /api/random-fact
Returns a single random fact as JSON in exchange for a micropayment.
Overview
Grade?
UNRATED
1 of 30 paid calls toward a letter
Price
$0.001 per call
Paid calls
1
1 delivered
More info
Seller?
URL
https://randomfactsx402.vercel.app/api/random-fact
Seen
first 34 days ago · last 12 hr ago
78 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Scoreweights 2026.09.6
UN
RATED
RATED
0.200 delivery verified, no letter
To a letter · 30 paid calls
1 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.800: 0.800 uncertain ? + 0.000 short ? · 0.250 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| honestycosts the most it charged what it advertised |
0.50 | 1.00 | 0.000 | 0.000 | 0 | −0.500 | |
| liveness it answered at all |
0.30 | 1.00 | 0.000 | 0.000 | 0 | −0.300 | |
| latency p95 it answered as fast as its class |
0.10 | 1.00 | 1.000 | 0.100 | 0 | 0 | |
| price stability the price stayed where it was listed |
0.10 | 1.00 | 1.000 | 0.100 | 0 | 0 | |
| Composite | 1.00 | 0.200 | gap to 1.000 = 0.800 · 0.000 short · 0.800 uncertain | 0.200 | −0.000 | −0.800 |
Not measured: correctness · no paid call was checked against a task; schema conformance · no output schema published
The multiplication, written out
0.500 × 0.000 honesty
+ 0.300 × 0.000 liveness
+ 0.100 × 1.000 latency p95
+ 0.100 × 1.000 price stability
= 0.200 → UNRATED: 1 of 30 paid calls weights 2026.09.6 · 1 samples · seed cap_01M1A51MM3ZK77D9XVFWJS3PAY|2026-07-05T09:39:23.693Z|2026.09.6
Verify it yourself
npx teppi-check https://randomfactsx402.vercel.app/api/random-factcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51MM3ZK77D9XVFWJS3PAY