Endpoint · evidenceGETagentcheck-kohl.vercel.app /report ?domain=api.exa.ai
AgentCheck: independently measured quality report for an x402 seller, built from real paid test purchases (price accuracy vs multi-exchange consensus, provenance consistency…
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AgentCheck: independently measured quality report for an x402 seller, built from real paid test purchases (price accuracy vs multi-exchange consensus, provenance consistency, latency, receipt behavior). Query: ?domain=<seller-domain>. GET /sellers (free) lists covered domains.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://agentcheck-kohl.vercel.app/report?domain=api.exa.ai
Seen
first 1 day ago · last 11 hr ago
2 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.200 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 0.800: 0.600 uncertain ? + 0.200 short ? · 0.250 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.000 | 0.000 | 0 | −0.600 | |
| 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 | 0.200 | gap to 1.000 = 0.800 · 0.200 short · 0.600 uncertain | 0.200 | −0.200 | −0.600 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.000 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.200 → UNRATED: 2 of 30 paid calls weights 2026.09.6 · 2 samples · seed cap_01M404SH4CPSME2TBNVVAWE34B|2026-09-04T00:53:45.759Z|2026.09.6
Verify it yourself
npx teppi-check https://agentcheck-kohl.vercel.app/report?domain=api.exa.aicurl -s https://api.teppi.xyz/v1/trust/cap_01M404SH4CPSME2TBNVVAWE34B