ScriptMasterLabs.com · x402 Directory
x402-gateway
Resource: https://x402.freeq.one/tools/verify_semaphore · Directory page generated 2026-11-04T02:37:37.751Z from live sources.
The facts, as last reported 2026-11-04T02:37:53.940Z: this resource answers x402 payment challenges at 0.002 USDC on Base (exact), pay to 0x90b0dC893406d6eA63bb077ED59F5e8340f98d84. It is reported by PayAI, Coinbase CDP and its directory state is live.
What it does
Semaphore ZK Proof Verifier: Verify a Semaphore ZK proof locally using Groth16 (embedded official vkey). No external dependency. Send the proof object from @semaphore-protocol/proof generateProof(). Pay per call in USDC on Base via x402 — P
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0022000 atomic | 0x90b0dC893406d6eA63bb077ED59F5e8340f98d84 |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-04T02:37:53.940Z |
| Settlement recency | listing last updated 2026-11-04T01:46:14.075Z at its source |
| Freshness | live — last reported 2026-11-04T02:37:53.940Z, listing last updated at source 2026-11-04T01:46:14.075Z |
| Reporting facilitator | PayAI |
| Sources | payai, cdp |
| Tags | mcp, pay-per-call, x402, usdc, base |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://x402.freeq.one/tools/verify_semaphore"
Pay it with any x402 client on Base. Networks: Base