Endpoint · computeGETx402.greenhead.io /v1/base/ping
Prove route for Base mainnet USDC x402 (eip155:8453).
Read more
Prove route for Base mainnet USDC x402 (eip155:8453). HTTP 200 after facilitator verify+settle. Priced as the cheapest SKU (0.002 face → 2000 USDC atomic when Base is enabled).Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.002 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://x402.greenhead.io/v1/base/ping
Seen
first 25 days ago · last 11 days ago
34 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC, xrpl:0
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.5
UN
RATED
RATED
0.545 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.455: 0.106 uncertain ? + 0.350 short ? · 0.105 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.75 | 0.574 | 0.345 | −0.150 | −0.106 | |
| latency p95 it answered as fast as its class |
0.20 | 0.00 | 0.000 | 0.000 | −0.200 | 0 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.545 | gap to 1.000 = 0.455 · 0.350 short · 0.106 uncertain | 0.545 | −0.350 | −0.106 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.574 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.545 → UNRATED: 33 of 30 paid calls weights 2026.09.5 · 33 samples · seed cap_01M22B28Y167DD346YDDS3CR40|2026-08-27T01:55:02.446Z|2026.09.5
Verify it yourself
npx teppi-check https://x402.greenhead.io/v1/base/pingcurl -s https://api.teppi.xyz/v1/trust/cap_01M22B28Y167DD346YDDS3CR40