Endpoint · market dataGETapi.usenami.io /v1/orderbook/best-execution
Naive single-venue best execution for one crypto perpetual: the venue with the lowest precomputed slippage at your requested size.
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Naive single-venue best execution for one crypto perpetual: the venue with the lowest precomputed slippage at your requested size. Excludes fees, funding and latency — a baseline to measure a router against, not a router.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.01 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.usenami.io/v1/orderbook/best-execution
Seen
first 35 days ago · last 18 days ago
45 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.3
UN
RATED
RATED
0.524 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.476: 0.057 uncertain ? + 0.420 short ? · 0.126 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.63 | 0.540 | 0.324 | −0.220 | −0.057 | |
| 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 | 0.524 | gap to 1.000 = 0.476 · 0.420 short · 0.057 uncertain | 0.524 | −0.420 | −0.057 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.540 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.524 → UNRATED: 43 of 30 paid calls weights 2026.09.3 · 43 samples · seed cap_01M1A5ADM980794WM1RZCKR1AJ|2026-08-23T03:32:17.725Z|2026.09.3
Verify it yourself
npx teppi-check https://api.usenami.io/v1/orderbook/best-executioncurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5ADM980794WM1RZCKR1AJ