11 Services from x402.netzhandwerker.de

Verifies the cryptographic validity of an x402 payment offer and optional receipt, checking signatures, payer identity, and receipt freshness on Base Mainnet.

Validates an x402 payment challenge object (v1 or v2) without executing a payment, either by fetching it from a URL or accepting it directly.

Detects duplicate/replayed x402 payment authorizations by fingerprinting nonces, payment IDs, and payload hashes within a configurable time window.

Given a buyer's token balances and a seller's accepted payment methods, returns an optimal payment route ranked by cost, speed, or security.

Reconciles on-chain token transfer receipts against actual blockchain transactions to verify payments were received for a given address and time window.

Audits a batch of payment channel vouchers, verifying signatures, claim status, and on-chain state for cryptographic payment channels on Base Mainnet.

Fetches and parses an x402 payment challenge (HTTP 402) from a remote URL or a supplied challenge object, returning structured payment requirement details.

Validates a proposed x402 micropayment against configurable policy rules (spending limits, allowed assets/chains, recipient filters) before executing it

Verifies that a blockchain settlement transaction matches expected payment parameters (recipient, token, amount) across multiple EVM chains.

Checks the health and availability of x402 payment facilitators (cdp, xpay, x402org) and optionally verifies chain support via CAIP-2 identifier

Finds and ranks comparable paid API endpoints by price and description similarity, helping you benchmark your own endpoint's pricing against similar x402 offerings.