Endpoint · onchainPOSTx402.fuchss.app /v1/x402-trust
Trust score (0-100, grade A-F) for any x402 endpoint -- listed in our catalog or not.
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Trust score (0-100, grade A-F) for any x402 endpoint -- listed in our catalog or not. Unlike uptime-only checkers, we return ECONOMIC PROOF: the REAL on-chain USDC settlement volume and distinct-payer count for the endpoint's payTo address -- is anyone actually paying it, or is it just live? Computed deterministically from continuous monitoring: 30d probe uptime, 402-envelope spec compliance, latency, observed age, on-chain settlement activity, and advertised-price stability. Includes a full component breakdown, machine-readable flags, and an honest observedDays (we report only the history we actually have, with dataCompleteSince marking our gap-free on-chain coverage). Uncataloged endpoints are live-probed on your first query and auto-adopted into the monitored catalog (first-contact score with low confidence -- history accumulates from there). Each paid call also refreshes the endpoint's free public snapshot (page, badge, card), so a fresh score shows everywhere immediately. Know before you pay.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.005 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://x402.fuchss.app/v1/x402-trust
Seen
first 34 days ago · last 21 days ago
40 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.3
UN
RATED
RATED
0.705 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by latency p95 · gap to 1.000 is 0.295: 0.095 uncertain ? + 0.200 short ? · 0.095 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 | 0.842 | 0.505 | 0 | −0.095 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.705 | gap to 1.000 = 0.295 · 0.200 short · 0.095 uncertain | 0.705 | −0.200 | −0.095 |
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 × 0.842 liveness
+ 0.200 × 1.000 price stability
= 0.705 → UNRATED: 39 of 30 paid calls weights 2026.09.3 · 39 samples · seed cap_01M1A51MZ3FWTTRSDVFYDT2F7G|2026-08-20T18:33:15.597Z|2026.09.3
Verify it yourself
npx teppi-check https://x402.fuchss.app/v1/x402-trustcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51MZ3FWTTRSDVFYDT2F7G