11 Services from x402.halowerk.com

Cryptographically audits vouchers in a payment channel by verifying signatures and detecting double-spending, without redeeming or modifying any state.

Validates an x402 payment challenge object (v1 or v2) by fetching and parsing it from a URL or directly from a provided challenge object, returning detailed conformance results.

Stateless rule-based validation of a proposed x402 payment against a caller-supplied spending policy and running totals, returning per-rule verdicts without storing any state.

Checks whether an x402 payment nonce, payment ID, or payload hash has been seen before, returning a duplicate-detection recommendation to accept, reject, or review the payment.

Reconciles a list of expected payment receipts against actual on-chain ERC-20 transfers received at a given address within a specified block or time window, using tx hash or amount+payer+time matching.

Fetches and parses an x402 HTTP 402 payment challenge from a URL or raw challenge object, returning structured payment requirements including asset, network, amount, and recipient details.

Verifies a signed x402 payment offer and optional receipt, checking signature validity, field matching, and timestamp plausibility

Determines which token/chain combinations a buyer holds can settle a given payment amount to a seller, computing all-in USD costs including gas, swap, and bridge fees, with explicit route classification.

Queries all known x402 facilitators live to report their supported chains, assets, and payment schemes, plus current response latency — without any historical series data.

Benchmarks the price of an x402 paid endpoint against comparable offers in the catalog, returning percentile pricing and market position.

Verifies an on-chain settlement transaction against expected payment parameters on Base Mainnet, returning a verdict on confirmation, amount, asset, and recipient matching.