x402-protocol-integration

XLS-20 NFTs held by an XRPL account — Genesis402 / UnyKorn Operator Network

Merkle-Patricia state proof for an account and optional storage slot — Genesis402 / UnyKorn Operator Network

Everything cheap that is knowable about an address, in one call — Genesis402 / UnyKorn Operator Network

Structural difference between two JSON values — Genesis402 / UnyKorn Operator Network

Which client software is behind an RPC endpoint — Genesis402 / UnyKorn Operator Network

ENS namehash and labelhash for a name — Genesis402 / UnyKorn Operator Network

Name of a token contract — Genesis402 / UnyKorn Operator Network

Who currently owns one ERC721 token — Genesis402 / UnyKorn Operator Network

Solana epoch progress — Genesis402 / UnyKorn Operator Network

Does a contract declare support for an ERC165 interface — Genesis402 / UnyKorn Operator Network

Metadata URI for one ERC721 token — Genesis402 / UnyKorn Operator Network

Which address is approved to move one NFT — Genesis402 / UnyKorn Operator Network

Ticker symbol of a token contract — Genesis402 / UnyKorn Operator Network

Event topic0 from a Solidity event signature — Genesis402 / UnyKorn Operator Network

Metadata URI for one ERC1155 token id — Genesis402 / UnyKorn Operator Network

The Nth transaction in a block — Genesis402 / UnyKorn Operator Network

Batch Base token safety, honeypot, rug-check and swap-preflight verdicts for up to 5 EVM contracts before a buyer agent signs or routes a swap. Returns PROCEED/CAUTION/REJECT actions, safety scores, evidence, warnings, aggregate counts, and a non-breaking 0.50 USDC bundled-risk-pack payable tier. Free single-token preview: /token-safety/free. Search keywords: rug check, honeypot check, token risk, swap preflight, rug pull, scam token, and is this token safe.

Which of ten EVM chains has this address ever touched — Genesis402 / UnyKorn Operator Network

Identify a Bitcoin output script — Genesis402 / UnyKorn Operator Network

Which chain does this address belong to, and is it well-formed — Genesis402 / UnyKorn Operator Network

Canonical JSON and its digest — Genesis402 / UnyKorn Operator Network

Verify that an agent wallet can complete an x402 v2 payment using USDC on Base mainnet before purchasing production art data.

x402 market intelligence with current catalog-attributed USDC flow, address-level demand signals and separately labeled value-matched history. The headline covers Base only (market.universeChains); the multi-chain picture ships alongside it as ecosystem, split into an RPC-proven floor and an indexed upper bound that are not additive (notASum). Attribution is not exclusive protocol-intent proof.

Coinbase CDP facilitator — Circle USDC on Base (fee-free). First settlement auto-lists in x402 Bazaar.