Endpoint · onchainGET402.com.tr /api/x402/b20-transfer-preflight ?address=0xb20000000000000000000186a08e781c38059eec&from=0x973a31858f4d2125f48c880542da11a2796f12d6&to=0xFe21a68f21d556A3C4274a44c2Fb5410c50cDa1C
🆕 The per-transaction B20 rail check: pass token + from + to (+ optional executor) and get one GO/HOLD/STOP on whether this exact transfer clears NOW — sender policy resolved…
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🆕 The per-transaction B20 rail check: pass token + from + to (+ optional executor) and get one GO/HOLD/STOP on whether this exact transfer clears NOW — sender policy resolved against the sender, receiver policy against the recipient, executor policy against the operator, plus live transfer-pause. Every other B20 tool is per-token due diligence bought once; this is the check an agent runs on every payment. No ERC-20 tool can see it.Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.04 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://402.com.tr/api/x402/b20-transfer-preflight?address=0xb20000000000000000000186a08e781c38059eec&from=0x973a31858f4d2125f48c880542da11a2796f12d6&to=0xFe21a68f21d556A3C4274a44c2Fb5410c50cDa1C
Seen
first 34 days ago · last 13 hr ago
64 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.412 liveness verified, no letter
To a letter · 30 paid calls
0 of 30
Held down by liveness · gap to 1.000 is 0.588: 0.200 uncertain ? + 0.388 short ? · 0.038 to D
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 0.69 | 0.354 | 0.212 | −0.188 | −0.200 | |
| 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 | 0.412 | gap to 1.000 = 0.588 · 0.388 short · 0.200 uncertain | 0.412 | −0.388 | −0.200 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.354 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.412 → UNRATED: 57 of 30 paid calls weights 2026.09.6 · 57 samples · seed cap_01M1A5A0CGCDC27E7AKZTT9WY3|2026-09-03T04:25:30.241Z|2026.09.6
Verify it yourself
npx teppi-check https://402.com.tr/api/x402/b20-transfer-preflight?address=0xb20000000000000000000186a08e781c38059eec&from=0x973a31858f4d2125f48c880542da11a2796f12d6&to=0xFe21a68f21d556A3C4274a44c2Fb5410c50cDa1Ccurl -s https://api.teppi.xyz/v1/trust/cap_01M1A5A0CGCDC27E7AKZTT9WY3