Endpoint · computePOSTphion.systems /v1/paid/trust/redirect-callback-validator
Validate HTTPS callback and redirect destinations against an explicit host allowlist
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://phion.systems/v1/paid/trust/redirect-callback-validator
MCP server on this host: systems.phion/evidence-engine
Seen
first 20 days ago · last 3 days ago
36 free handshakes
Payment
Pays through
x402
Offered on?
Polygon, Arbitrum, Base USDC, Solana
Listed on?
Polygon, Arbitrum, Base, Solana
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.795 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held back by sample size, not by the seller · gap to 1.000 is 0.205: 0.123 uncertain ? + 0.082 short ? · 0.005 to B
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.802 | 0.481 | 0 | −0.119 | |
| latency p95 it answered as fast as its class |
0.20 | 0.59 | 0.568 | 0.114 | −0.082 | −0.004 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.795 | gap to 1.000 = 0.205 · 0.082 short · 0.123 uncertain | 0.795 | −0.082 | −0.123 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.802 liveness
+ 0.200 × 0.568 latency p95
+ 0.200 × 1.000 price stability
= 0.795 → UNRATED: 31 of 30 paid calls weights 2026.09.6 · 31 samples · seed cap_01M2F743XD8PA4S0VJ4VA35KCH|2026-08-31T09:55:37.095Z|2026.09.6
Verify it yourself
npx teppi-check https://phion.systems/v1/paid/trust/redirect-callback-validatorcurl -s https://api.teppi.xyz/v1/trust/cap_01M2F743XD8PA4S0VJ4VA35KCH