Endpoint · lookupGET402registry.com /buy/four
Agent-visibility check: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site?
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Agent-visibility check: does an AI crawler (GPTBot, ClaudeBot, PerplexityBot, OAI-SearchBot) actually see your site? BEST-RATE pack: 4 checks for $5 ($1.25/check). Same service, smallest entry $2 at https://402registry.com/buy/one. Ladder: 1/$2, 2/$3, 4/$5. All packs: https://402registry.com/.well-known/402registry.json. A passing check earns a dated badge and a registry listing. No account, no card, no human.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$5.00 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://402registry.com/buy/four
Seen
first 7 days ago · last 10 hr ago
12 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.465 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 0.535: 0.335 uncertain ? + 0.200 short ? · 0.185 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.442 | 0.265 | 0 | −0.335 | |
| 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 | 0.465 | gap to 1.000 = 0.535 · 0.200 short · 0.335 uncertain | 0.465 | −0.200 | −0.335 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.442 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.465 → UNRATED: 11 of 30 paid calls weights 2026.09.6 · 11 samples · seed cap_01M3GP83GMENN9A41ZMF4SJTPA|2026-09-03T19:06:19.953Z|2026.09.6
Verify it yourself
npx teppi-check https://402registry.com/buy/fourcurl -s https://api.teppi.xyz/v1/trust/cap_01M3GP83GMENN9A41ZMF4SJTPA