ScriptMasterLabs.com · x402 Directory
EVM & Solana Utility Tools
Resource: https://chain-tools.use.x402atlas.com/merkle/build · Directory page generated 2026-11-04T01:51:01.379Z from live sources.
The facts, as last reported 2026-11-04T01:48:39.265Z: this resource answers x402 payment challenges at 0.01 USDC on Base (exact), pay to 0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2. It is reported by Coinbase CDP and its directory state is live.
What it does
Keccak Merkle tree and proof builder — generate indexed sorted-pair inclusion proofs with domain separation and explicit odd-node promotion.
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0110000 atomic | 0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2 |
| Polygoneip155:137 | exact | USDC0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359 | 0.0110000 atomic | 0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2 |
| Arbitrumeip155:42161 | exact | USDC0xaf88d065e77c8cC2239327C5EDb3A432268e5831 | 0.0110000 atomic | 0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2 |
| Solanasolana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp | exact | USDCEPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v | 0.0110000 atomic | 3nXsChcZGke6xebDPmndNMCt8L3yi6xyN4Pd6q5cQrgv |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-04T01:48:39.265Z |
| Settlement recency | listing last updated 2026-11-04T01:03:14.77Z at its source |
| Freshness | live — last reported 2026-11-04T01:48:39.265Z, listing last updated at source 2026-11-04T01:03:14.77Z |
| Reporting facilitator | Coinbase CDP |
| Sources | cdp |
| Tags | merkle-proof, merkle-tree, keccak256, proof-generation, blockchain-development |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://chain-tools.use.x402atlas.com/merkle/build"
Pay it with any x402 client on Base, Polygon, Arbitrum, Solana. Networks: Base · Polygon · Arbitrum · Solana