Endpoint · market dataGETapexrunner.ai /signals/cross-exchange-spread
APEX Runner: Cross Exchange Spread Signal
Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.007 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://apexrunner.ai/signals/cross-exchange-spread
Seen
first 25 days ago · last 4 days ago
46 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.811 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 0.189: 0.130 uncertain ? + 0.059 short ? · 0.089 to A
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.98 | 0.811 | 0.486 | −0.010 | −0.104 | |
| latency p95 it answered as fast as its class |
0.20 | 0.75 | 0.623 | 0.125 | −0.049 | −0.026 | |
| price stability the price stayed where it was listed |
0.20 | 1.00 | 1.000 | 0.200 | 0 | 0 | |
| Composite | 1.00 | 0.811 | gap to 1.000 = 0.189 · 0.059 short · 0.130 uncertain | 0.811 | −0.059 | −0.130 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.811 liveness
+ 0.200 × 0.623 latency p95
+ 0.200 × 1.000 price stability
= 0.811 → UNRATED: 40 of 30 paid calls weights 2026.09.6 · 40 samples · seed cap_01M22B3QCHDBM24BTFXJMDGXQX|2026-08-31T01:30:26.267Z|2026.09.6
Verify it yourself
npx teppi-check https://apexrunner.ai/signals/cross-exchange-spreadcurl -s https://api.teppi.xyz/v1/trust/cap_01M22B3QCHDBM24BTFXJMDGXQX