Endpoint · onchainGETapi.verigrace.com:4451 /api/contract-gate ?address=required%3A+0x+contract+address+to+check&txType=optional%3A+approve%2C+swap%2C+or+permit+%28contextualizes+risk%29
Pre-trade contract safety gate: static analysis of verified Solidity source + on-chain metadata.
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Pre-trade contract safety gate: static analysis of verified Solidity source + on-chain metadata. Returns pass/fail verdict + red flag checklist (reentrancy, unchecked calls, owner privs, delegatecall, oracle single-point, rug vectors, age). Pay-per-check: 0.25 USDC on Base via x402. Source: Blockscout + Base RPC (public data only).Overview
Grade?
UNRATED
0 of 30 paid calls toward a letter
Price
$0.25 per call
Paid calls
none yet
delivery unknown until someone pays
More info
Seller?
URL
https://api.verigrace.com:4451/api/contract-gate?address=required%3A+0x+contract+address+to+check&txType=optional%3A+approve%2C+swap%2C+or+permit+%28contextualizes+risk%29
Seen
first 10 days ago · last 4 days ago
17 free handshakes
Payment
Pays through
x402
Offered on?
Base USDC
Listed on?
Base
Score, from free handshakes onlyweights 2026.09.6
UN
RATED
RATED
0.570 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 0.430: 0.230 uncertain ? + 0.200 short ? · 0.080 to C
| Component | Weight | Measured | Lower bound ? | Adds | Short ? | Uncertain ? | |
|---|---|---|---|---|---|---|---|
| livenesscosts the most it answered at all |
0.60 | 1.00 | 0.616 | 0.370 | 0 | −0.230 | |
| 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 | 0.570 | gap to 1.000 = 0.430 · 0.200 short · 0.230 uncertain | 0.570 | −0.200 | −0.230 |
Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check
The multiplication, written out
0.600 × 0.616 liveness
+ 0.200 × 0.000 latency p95
+ 0.200 × 1.000 price stability
= 0.570 → UNRATED: 16 of 30 paid calls weights 2026.09.6 · 16 samples · seed cap_01M38Z3X6RYYTB6AWS3FZFAV39|2026-09-03T14:54:35.249Z|2026.09.6
Verify it yourself
npx teppi-check https://api.verigrace.com:4451/api/contract-gate?address=required%3A+0x+contract+address+to+check&txType=optional%3A+approve%2C+swap%2C+or+permit+%28contextualizes+risk%29curl -s https://api.teppi.xyz/v1/trust/cap_01M38Z3X6RYYTB6AWS3FZFAV39