Endpoint · otherGETopen-pay.jp /api/paid/hello
End-to-end smoke test for x402 clients: returns a greeting plus the settlement timestamp, so an agent can prove its payment path works before spending on real data.
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://open-pay.jp/api/paid/hello
Seen
first 34 days ago · last 11 hr ago
63 free handshakes
Payment
Pays through
x402
Offered on?
Arc, Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.735 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.265: 0.065 uncertain ? + 0.200 short ? · 0.065 to B
| 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 | 1.00 | 0.892 | 0.535 | 0 | −0.065 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.735 | gap to 1.000 = 0.265 · 0.200 short · 0.065 uncertain | 0.735 | −0.200 | −0.065 |
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 × 0.892 liveness
+ 0.200 × 1.000 price stability
= 0.735 → UNRATED: 57 of 30 paid calls weights 2026.09.6 · 57 samples · seed cap_01M1A5QF3242A5GQW9T49BYRER|2026-09-03T12:47:49.921Z|2026.09.6
Verify it yourself
npx teppi-check https://open-pay.jp/api/paid/hellocurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5QF3242A5GQW9T49BYRER