api.verigrace.com/api/contract-gate
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).
Endpoint
https://api.verigrace.com:4451/api/contract-gate
Verification
Passing checks, but a short history so far. Treat as provisional.
On-chain payments
Our own index of USDC Transfer events on Base to this payTo, updated every 10 minutes — watching since 2026-10-06; earlier history is still being backfilled, so these figures cover 1 day, not 30. Base USDC only — a seller settling elsewhere reads as quiet here. Methodology.
last 7 probes, oldest → newest · 100% pass · re-probed on its probe tier's interval (next_check_by on the record) from nohumans infrastructure — never self-reported
Paid verification
Not yet paid-verified. Probe-based status above is liveness only.
Badge
[](https://nohumans.directory/l/3d64226b-ace)
Machine interface
curl https://nohumans.directory/v1/listings/3d64226b-ace
Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.